Occulohypotensive Effect Of Torasamide In Experimental Glaucoma
|
|
- Anthony Goodwin
- 5 years ago
- Views:
Transcription
1 ISPUB.COM The Internet Journal of Pharmacology Volume 5 Number 2 Occulohypotensive Effect Of Torasamide In Experimental Glaucoma S Panchal, A Mehta, D Santani Citation S Panchal, A Mehta, D Santani.. The Internet Journal of Pharmacology Volume 5 Number 2. Abstract Glaucoma is a disease of eye that is characterized by an increase in intraocular pressure (IOP). We have studied the effect of torasamide (1%) on intraocular pressure (IOP) in experimentally induced acute and chronic models of glaucoma in rabbits. Some of the possibilities regarding mechanism of action involved were also studied. Acute glaucoma was induced by intravenous administration of 5% dextrose. Pretreatment with topical torasemide (1%) prevented acute rise in IOP induced by intravenous administration of 5% dextrose infusion. Chronic glaucoma model was produced by injection of freshly prepared 50 unit of α-chymotrypsin in 0.1 ml of sterile saline in the posterior chamber of the eye. Torasemide (1%) (From 33.06±0.73 to 19.96±0.1 mmhg) and pilocarpine (1%) (From 30.13±0.40 to 20.8±0.04 mmhg) produced a significant fall in intraocular pressure in rabbits with α-chymotrypsin induced ocular hypertension. Pretreatment with indomethacin (1%) (A prostaglandin synthesis inhibitor) blocked the IOP lowering effect of torasemide (1%). Pretreatment with pilocarpine (1%) did not produce any significant change in IOP lowering action of torasemide (1%). Our data suggest that torasemide showed oculohypotensive effect probably by enhancing aqueous humor outflow. INTRODUCTION Glaucoma is a multifactorial disease with a number of elements contributing to its development. An elevation of intraocular pressure (IOP) is a prominent component in optic nerve damage, which is the hallmark of glaucoma. If the elevated IOP is inadequately treated, progressive blindness may result. Various drugs used in treatment of glaucoma 1 are parasympathomimetics,β-adrenoceptor blockers, carbonic anhydrase inhibitors, α 2 -adrenoceptor agonists, prostaglandin analogues and angiotensin converting enzyme inhibitors 2 (ACE inhibitors). Timolol eye drops are a golden standard in the treatment of glaucoma. However, timolol is known to get into systemic circulation and causes various systemic effects. 3 Although glaucoma is known to be a serious chronic eye disease, an ideal agent to be used in this disease is still not available and there has been a constant urge for the discovery of newer drugs. Tingey et al. (1992) observed that topical application of a loop diuretic, ethacrynic acid in the eyes of rabbits and monkeys, reduced intraocular pressure. 4 Neumann et al. (1992) reported that a single intracameral injection of ethacrynic acid reduced IOP in patients with glaucoma. 5 In the present study, we investigated the effect of torasemide on IOP in rabbits and possible mechanism of action of this agent. MATERIALS AND METHODS EXPERIMENTAL ANIMALS New Zealand white rabbits of either sex weighing 1.5 to 2.5 kg, (Zydus Research Center, Ahmedabad, India) housed under well controlled conditions of temperature (22±2 C), humidity (55±5%) and 12/12-h light dark cycle were given access to food and water ad libitum. The protocol of the experiment was approved by the Institutional Animal Ethical Committee as per the guidance of the Committee for the Purpose of Control and Supervision of Experiments on Animals (CPCSEA), Ministry of Social Justice and Empowerment, Government of India. ACUTE GLAUCOMA MODEL Rabbits weighing 1.5 to 2.5 kg were used for the study. The basal intraocular pressure was measured by tonometer (Schiotz type indentation tonometer) and the drug solutions prepared in suitable solvents were instilled topically into the left eye. The drug solutions used in the study were torasemide (1% in PEG 400) and pilocarpine (1%, FDC Ltd., India). The right eye received the vehicle, which served as 1 of 5
2 control. After 15 minutes of drug administration, 5% dextrose solution (15 ml/kg) was intravenously infused through marginal ear vein. The Intra ocular pressure (IOP) changes were recorded every 15 minutes till the pressure became normal. CHRONIC GLAUCOMA MODEL Rabbits weighing of 1.5 to 2.5 kg (either sex) were sedated with diazepam (1 mg/kg i.v.) and anaesthetized with ketamine (25 mg/kg i.v.). Freshly prepared α-chymotrypsin (50 units) solution prepared in 0.1 ml of sterile saline was irrigated through the cannula into the posterior chamber. The debris of tissue blocked the pathway of aqueous humor outflow in the trabecular meshwork to induce ocular hypertension. 6 Rabbits with glaucoma rabbits were selected and used for determining the effect of drugs on IOP. After achieving a steady elevated IOP, similar drug solutions as in acute glaucoma model were administered topically into the left eye whereas, right eye served as control. The IOPs were measured at time zero (just before eye drop instillation) and suitable time intervals. (1%) and pilocarpine (1%) prevented this rise in IOP (From ± 0.35 to ± 0.14 mmhg and from ± 0.62 to ± 0.70 mmhg respectively) (fig. 1). Figure 1 Figure 1: Effect of torasemide (1%) and pilocarpine (1%) on IOP in acute glaucoma model in rabbits. Each point and bar represents mean ± SEM of 6 observations. STUDIES ON INTERACTION OF INDOMETHACIN AND PILOCARPINE WITH TORASEMIDE IN CHRONIC GLAUCOMA MODEL IN RABBITS. Rabbits with glaucoma induced by α-chymotrypsin were selected for the study. The intraocular pressure was initially recorded with the help of tonometer. Indomethacin (1%, Sterfil Laboratories Pvt Ltd., India) prostaglandin inhibitor was topically administered to the left eye. Right eye served as control. After 45 minutes of administration of indomethacin, torasemide (1%) was instilled topically. The changes in IOPs were recorded at suitable time interval using tonometer. Indomethacin was replaced by pilocarpine to study the interaction of pilocarpine with torasemide. Torasemide solution was first tested in rabbit's eyes for ocular safety. No ill effects were observed. STATISTICAL ANALYSIS Paired student t-test was employed for determining the statistical significance of most of the data at the probability level of 95%. A split-plot ANOVA analysis was carried out for studying the time dependent interaction between the drugs under study and other drugs. RESULTS An acute elevation in intraocular pressure (IOP) up to mmhg was observed when 5% dextrose (15ml/kg) was administered intravenously. Pretreatment with torasemide 2 of 5
3 Figure 2 Figure 2: Effect of torasemide (1%) and pilocarpine (1%) on IOP in chronic glaucoma model in rabbits. Each point and bar represents mean ± SEM of 6 observations. Figure 3 Figure 3: Effect of torasemide (1%) and [indomethacine (1%) + torasemide (1%)] on IOP in chronic glaucoma model in rabbits. Each point and bar represents mean ± SEM of 6 observations. In α-chymotrypsin induced glaucoma, topical administration of torasemide and pilocarpine produced a significant fall in IOP (From ± 0.73 to ± 0.1 mmhg and from ± 0.04 to ± 0.02 respectively) (fig. 2). In case of interaction of indomethacin with torasemide, indomethacin (1%) has reversed IOP lowering effect of torasemide (fig. 3) but pretreatment with pilocarpine followed by torasemide did not further lower IOP in chronic glaucoma. DISCUSSION Diuretics like ethacrynic acid 4, acetazolamide 7 and dorzalamide 8 and are well known for their IOP lowering effect. Torasemide belongs to the same class. We have studied the oculohypotensive action of a loop diuretic, torasemide in experimentally induced acute and chronic models of glaucoma in rabbits. Oral water loading and a more advantageous alternative 5% glucose infusion is one of the easiest, fastest and reliable techniques to screen antiglaucoma agents 9. Oral water loading or 5% glucose infusion leads to reduction in blood osmolality, which leads to transfer of water into the eye causing elevation of IOP. In our study, torasemide and pilocarpine prevented the acute rise in IOP due to 5% glucose infusion. Chronic and stable 3 of 5
4 elevation of IOP was achieved by introducing α- chymotrypsin into the posterior chamber of the rabbit eye. The sustained increase in IOP is caused by an inflammatory reaction in the trabecular meshwork 10. Both pilocarpine and torasemide produced significant reduction in IOP in α- chymotrypsin induced chronic glaucoma model. Prostaglandin analogs are known to reduce IOP by increasing the uveoscleral outflow. 11 Pilocarpine reduces uveoscleral outflow by providing a stretching of the scleral spur through which PGF 2α reduces IOP. 12 To explore IOP lowering mechanism of torasemide, we have studied interaction of indomethacin and pilocarpine with torasemide. Pilocarpine did not alter IOP lowering effect of torasemide. We studied the indomethacin-torasemide interaction in chronic glaucoma model in rabbits. Pretreatment with prostaglandin synthesis inhibitor indomethacin, reversed the IOP lowering effect of torasemide in the concentration used in the present study. The natriuretic effect of torasemide is reported to be partially inhibited by the concomitant administration of indomethacin. 13 Prostaglandins produce oculohypotensive action by increasing uveoscleral outflow, which may be due to enzymatic lyses of the connective tissue of ciliary muscle 14. This suggests that one of the possible mechanisms of torasemide may be through improvement in uveoscleral outflow. In conclusion, our data suggest that torasemide possesses oculohypotensive effect probably by enhancing aqueous humor outflow. ACKNOWLEDGEMENTS We thank Cipla Ltd., India, for gifting sample of torasemide and animals for this research work. CORRESPONDENCE TO Shital J Panchal, Ph. D. Assistant Professor, Department of pharmacology, K. B. Raval College of Pharmacy, At & Po: Shertha, Kasturinagar. Dist: Gandhinager , Gujarat, India. shital_panchal22@yahoo.co.in References 1. Whitson JT. Glaucoma: a review of adjunctive therapy and new management strategies. Expert Opin Pharmacother Dec; 8(18): Shah GB, Sharma S, Mehta AA, Goyal RK. Oculohypotensive effect of angiotensin-converting enzyme inhibitors in acute and chronic models of glaucoma. J Cardiovasc Pharmacol Aug; 36(2): Usitalo H, Kähönen M, Ropo A, Mäenpää J, Bjärnhall G, Hedenström H, Turjanmaa V. Improved systemic safety and risk-benefit ratio of topical 0.1% timolol hydrogel compared with 0.5% timolol aqueous solution in the treatment of glaucoma. Graefes Arch Clin Exp Ophthalmol Nov; 244(11): Tingey DP, Ozment RR, Schroeder A, Epstein DL. The effect of intracamerally injected ethacrynic acid on the intra ocular pressure of living monkeys. Am. J. Ophthalmol. 1992; 113: Neumann R, Barak A, Epstein DL, Melamed S. The effect of intracamerally injected ethacrynic acid on intraocular pressure in patients with glaucoma. Am. J. Pharmacol. 1992; 113: Ling Z, Thompson WY, Potter DE. Multiple cyclic nucleotide phosphodiesterases in human trabecular meshwork cells. Invest Ophthalmol Vis Sci.1999; 40: Maus TL, Larsson LI, McLaren JW, Brubaker RF. Comparison of dorzolamide and acetazolamide as suppressors of aqueous humor flow in humans. Arch. Ophthalmol. 1997; 115: Lichter PR, Newman LP, Wheeler NC, Beall OV. Patient tolerance to carbonic anhydrase inhibitors. Am. J. Ophthalmol. 1978; 85: Bonomi L, Tomazzoli L, Jaria D. An improved model of experimentally induced ocular hypertension in the rabbit. Invest Ophthalmol Sep;15(9): Sears D, Sears M. Blood-aqueous barrier and alphachymotrypsin glaucoma in rabbits. Am J Ophthalmol Mar; 77(3): Crawford K, Kaufman PL. Pilocarpine antagonizes prostaglandin F2 alpha-induced ocular hypotension in monkeys. Evidence for enhancement of Uveoscleral outflow by prostaglandin F2 alpha. Arch Ophthalmol Aug;105(8): Gupta SK, Agarwal R, Galpalli ND, Srivastava S, Agrawal SS, Saxena R. Comparative efficacy of pilocarpine, timolol and latanoprost in experimental models of glaucoma. Methods Find Exp Clin Pharmacol Dec; 29(10): Lutjen-Drecoll E, Tamm E. Morphological study of the anterior segment of cynomologus monkey eyes following treatment with prostaglandin F2α. Exp. Eye. Res. 1988; 47: of 5
5 Author Information Shital J. Panchal, Ph.D. K. B. Raval College of Pharmacy A.A. Mehta, Ph.D. Assistant Professor, Department of pharmacology, L. M. College of Pharmacy D.D. Santani, Ph.D. Professor and Head, Department of pharmacology, L. M. College of Pharmacy 5 of 5
A. Incorrect! Acetazolamide is a carbonic anhydrase inhibitor given orally or by intravenous injection.
Pharmacology - Problem Drill 20: Drugs that Treat Glaucoma Question No. 1 of 10 1. is a topical carbonic anhydrase inhibitor. Question #01 (A) Acetazolamide (B) Clonidine (C) Dorzolamide (D) Apraclonidine
More informationVI.2.2 Summary of treatment benefits
EU-Risk Management Plan for Bimatoprost V01 aetiology), both OAG and ACG can be secondary conditions. Secondary glaucoma refers to any case in which another disorder (e.g. injury, inflammation, vascular
More informationEfficacy of latanoprost in management of chronic angle closure glaucoma. Kumar S 1, Malik A 2 Singh M 3, Sood S 4. Abstract
Original article Efficacy of latanoprost in management of chronic angle closure glaucoma Kumar S 1, Malik A 2 Singh M 3, Sood S 4 1 Associate Professor, 2 Assistant Professor, 4 Professor, Department of
More informationThe intraocular pressure (I.O.P) lowering effects of investigational anti-glaucoma drugs often need comparison with existing drugs in rabbits
2017; 6(1): 10-15 ISSN: 2277-7695 TPI 2017; 6(1): 10-15 2017 TPI www.thepharmajournal.com Received: 04-11-2016 Accepted: 05-12-2016 Sampath D Assistant Professor of Pharmacology, Shadan Institute of medical
More informationeffect of previous argon laser trabeculoplasty
Graefe s Arch Clin Exp Ophthalmol (2006) 244: 1073 1076 CLINICAL INVESTIGATION DOI 10.1007/s00417-005-0198-x Esther Arranz-Marquez Miguel A. Teus Effect of previous argon laser trabeculoplasty on the ocular
More informationImpact of Education on Knowledge Attitude and Practice (KAP) of Glaucoma Patients towards their Disease Management- a Study
Research Article Impact of Education on Knowledge Attitude and Practice (KAP) of Glaucoma Patients towards their Disease Management- a Study R. Jothi, *Siddhartha Pal, A M. Ismail, R. Senthamarai, C. Rajesh
More informationOCULAR PHARMACOLOGY GLAUCOMA. increased intraocular pressure. normally mm Hg. when to Tx no fixed level.
OCULAR PHARMACOLOGY GLAUCOMA increased intraocular pressure normally 12 20 mm Hg. when to Tx no fixed level. literature sets ~21 mm Hg as upper limit of normal. some safe at 30 mm Hg some may have damage
More informationCLINICAL SCIENCES. Comparison of the Early Effects of Brimonidine and Apraclonidine as Topical Ocular Hypotensive Agents
Comparison of the Early Effects of Brimonidine and Apraclonidine as Topical Ocular Hypotensive Agents Todd L. Maus, MD; Cherie Nau; Richard F. Brubaker, MD CLINICAL SCIENCES Objective: To compare the mechanism
More informationMedical Treatment in Pediatric Glaucoma
Medical Treatment in Pediatric Glaucoma By Nader Bayoumi, MD Lecturer of Ophthalmology Ophthalmology Department Alexandria University Alexandria, Egypt ESG 2012 Pediatric glaucoma is a surgical disease
More informationGlaucoma. Glaucoma. Glaucoma. Trevor Arnold, MS, DVM, DACVO
Glaucoma Trevor Arnold, MS, DVM, DACVO Glaucoma Physiology of Aqueous Humor Produced in the ciliary body Flows out the iridocorneal angle and ciliary cleft High intraocular pressures are caused by a decreased
More informationA,kCetazolamide lowers intraocular pressure
Ocular and systemic effects of acetazolamide in nephrectomized rabbits Zvi Friedman,* Theodore Krupin, and Bernard Becker The effects of acetazolamide on intraocular pressure (IOP) were studied on rabbits
More informationLatanoprost 0.005% v/s Timolol Maleate 0.5% Pressure Lowering Effect in Primary Open Angle Glaucoma
Original Article Latanoprost 0.005% v/s Timolol Maleate 0.5% Pressure Lowering Effect in Primary Open Angle Glaucoma Arshad Ali Lodhi, Khalid Iqbal Talpur, Mahtab Alam Khanzada Pak J Ophthalmol 2008, Vol.
More informationTreatments on the Horizon
Latanoprostene bunod (Vesneo) Treatments on the Horizon Dominick L Opitz, OD, FAAO Associate Professor Illinois College of Optometry Valeant (B+L) Nitrous oxide-donating prostaglandin F2-alpha analogue
More informationEffect of Latanoprost, Prostaglandin F 2 and Nipradilol on Isolated Bovine Ciliary Muscle
Effect of Latanoprost, Prostaglandin F 2 and Nipradilol on Isolated Bovine Ciliary Muscle Takeshi Yoshitomi*, Kazutsuna Yamaji*, Hitoshi Ishikawa and Yoshitaka Ohnishi* *Department of Ophthalmology, Wakayama
More informationGonioscopy and 3-Mirror Retinal Evaluation Workshop Edeline Lu, O.D., FAAO Benedicte Gonzalez, O.D., MPH, FAAO Tina Zheng, O.D.
Gonioscopy and 3-Mirror Retinal Evaluation Workshop Edeline Lu, O.D., FAAO Benedicte Gonzalez, O.D., MPH, FAAO Tina Zheng, O.D., FAAO Please silence all mobile devices and remove items from chairs so others
More informationGlaucoma. Glaucoma. Optic Disc Cupping
Glaucoma What is Glaucoma? Bruce James A group of diseases in which damage to the optic nerve occurs as a result of intraocualar pressure being above the physiological norm for that eye Stoke Mandeville
More informationCLASS-y Laser Treats Glaucoma
Article # 404 Comments About the Author Released: Author: Category: March 12th, 2014 Issue #0314 Ehud Assia Feature S S S S S CLASS-y Laser Treats Glaucoma Transforming complex, invasive and risky glaucoma
More informationEast and North Hertfordshire treatment pathway for primary open angle glaucoma and ocular hypertension in adults
East and North Hertfordshire treatment pathway for primary open angle glaucoma and ocular hypertension in adults Introduction Glaucoma is a group of eye diseases causing optic nerve damage. In most cases
More informationEfficacy and Tolerability of Latanoprost 0.005% in Treatment of Primary Open Angle Glaucoma (POAG)
Original Article Efficacy and Tolerability of Latanoprost.5% in Treatment of Primary Open Angle Glaucoma (POAG) Muhammad Imran Janjua, Saira Bano, Ali Raza Pak J Ophthalmol 217, Vol. 33, No. 3.....................................................................................................
More information3/31/2019. Role of IOP. Role of IOP. Role of IOP. Role of IOP. Evaluation of glaucoma has changed Why hasn t treatment?
Glaucoma Update ROLE FOR RHOPRESSA Gregory D. Searcy, M.D. 1857: German ophthalmologist Albrecht Van Graefe concluded all glaucomatous optic disc excavation is associated with high IOP based on the only
More informationProstaglandin F2,-isopropylester eye drops:
British Journal of Ophthalmology, 1989, 73, 419-426 Prostaglandin F2,-isopropylester eye drops: effects in normal human eyes* JORGEN VILLUMSEN AND ALBERT ALM From the Department of Ophthalmology, University
More informationThe Systemic Effect Of Topical Timolol On Some Cardiovascular Parameters In Owerri Municipality
ISPUB.COM The Internet Journal of Third World Medicine Volume 5 Number 1 The Systemic Effect Of Topical Timolol On Some Cardiovascular Parameters In Owerri Municipality G Oze, M Emegwamuo, P Eleanya, H
More informationEffect of a Single Drop of Latanoprost on Intraocular Pressure and Blood-Aqueous Barrier Permeability in Patients with Uveitis
Kobe J. Med. Sci., Vol. 48, No. 6, pp. 153-159, 2002 Effect of a Single Drop of Latanoprost on Intraocular Pressure and Blood-Aqueous Barrier Permeability in Patients with Uveitis YOSHIAKI KIUCHI, KOJI
More information8 USE IN SPECIFIC POPULATIONS Patients with Open-Angle Glaucoma or Ocular Hypertension
3 HIGHLIGHTS OF PRESCRIBING INFORMATION These highlights do not include all the information needed to use Isopto Carpine safely and effectively. See full prescribing information for Isopto Carpine. Isopto
More informationTraining Checking Vision Tonometry
Training 101-2 Checking Vision Tonometry Checking Vision The classic example of an eye chart is the Snellen eye chart, in general they show 11 rows of capital letters. The top row contains one letter (usually
More informationA LITTLE ANATOMY. three layers of eye: 1. outer: corneosclera. 2. middle - uvea. anterior - iris,ciliary body. posterior - choroid
GLAUCOMA A LITTLE ANATOMY three layers of eye: 1. outer: corneosclera 2. middle - uvea anterior - iris,ciliary body posterior - choroid connection at the pars plana between post and ant uvea 3. retina
More informationEffect of brimonidine on intraocular pressure in normal tension glaucoma: A short term clinical trial
European Journal of Ophthalmology / Vol. 13 no. 7, 2003 / pp. 611-615 Effect of brimonidine on intraocular pressure in normal tension glaucoma: A short term clinical trial S.A. GANDOLFI, L. CIMINO, P.
More informationBuilding a Major Ophthalmic Pharmaceutical Company. Aerie Pharmaceuticals, Inc. Company Overview June 2-3, 2015
Building a Major Ophthalmic Pharmaceutical Company Aerie Pharmaceuticals, Inc. Company Overview June 2-3, 2015 1 Important Information Any discussion of the potential use or expected success of our product
More informationPrimary Open Angle Glaucoma (POAG) Primary Angle Closure Glaucoma (PACG) _ acute _ chronic Other causes of glaucoma (secondary glaucoma)
T H E M E : E Y E RECENT ADVANCES IN GLAUCOMA MANAGEMENT Dr VKY Yong, Dr PTK Chew INTRODUCTION Definition Glaucoma describes a group of heterogenous disorders in which progressive damage to the optic nerve
More informationA Short-term Study of the Additive Effect of Latanoprost 0.005% and Brimonidine 0.2%
A Short-term Study of the Additive Effect of Latanoprost 0.005% and Brimonidine 0.2% Haydar Erdoğan, İlker Toker, Mustafa Kemal Arıcı, Ahmet Aygen and Ayşen Topalkara Department of Ophthalmology, School
More informationDivakar Gupta Glaucoma Fellow, Duke Eye Center 5/14/16
Divakar Gupta Glaucoma Fellow, Duke Eye Center 5/14/16 Pathophysiology of glaucoma Consider risk factors of glaucoma Understand the side effects of glaucoma medications Diagnostic testing Leading cause
More informationJPSBR: Volume 4, Issue 6: 2014 ( ) ISSN NO
Analytical Method Development and Validation for Simultaneous Estimation of Timolol Maleate and Brimonidine in Bulk and Marketed Ophthalmic Formulation Suketa K. Mehta*, Dr. Dilip G. Maheshwari Department
More informationEndocyclophotodestruction in Glaucoma Patients Undergoing Combined Surgery of Pars Plana Vitrectomy and Phacoemulsification
e-issn 643-370 DOI: 0.269/MSM.89097 Received: 204.04.23 Accepted: 204.0.29 Published: 204.0. Endocyclophotodestruction in Glaucoma Patients Undergoing Combined Surgery of Pars Plana Vitrectomy and Phacoemulsification
More informationOriginal Article. Abstract. Introduction. C Olali, G Malietzis, S Ahmed, E Samaila 1, M Gupta
Original Article Real-life experience study of the safety and efficacy of travoprost 0.004% / timoptol 0.50% fixed combination ophthalmic solution in intraocular pressure control C Olali, G Malietzis,
More informationRole of Initial Preoperative Medical Management in Controlling Post-Operative Anterior Uveitis in Patients of Phacomorphic Glaucoma
Original Article Role of Initial Preoperative Medical Management in Controlling Post-Operative Anterior Uveitis in Patients of Phacomorphic Glaucoma Irfan Qayyum Malik, M. Moin, A. Rehman, Mumtaz Hussain
More informationDrug Prescribing Pattern & Adverse Drug Effects Of Anti Glaucoma Medication for Primary Glaucoma at Tertiary Care Hospital
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) e-issn: 2279-0853, p-issn: 2279-0861.Volume 16, Issue 11 Ver. III (Nov. 2017), PP 36-41 www.iosrjournals.org Drug Prescribing Pattern & Adverse Drug
More informationGLAUCOMA. An Overview
GLAUCOMA An Overview Compiled by Campbell M Gold (2004) CMG Archives http://campbellmgold.com --()-- IMPORTANT The health information contained herein is not meant as a substitute for advice from your
More informationA 65-year-old African American man returns to clinic for routine follow-up of
atalytic Strategies: The ase of the rushed Mailbox APTER 9 ASE ISTRY A 65-year-old African American man returns to clinic for routine follow-up of mild systemic hypertension that has been controlled with
More informationThe second most common causes of blindness worldwide. ( after cataract) The commonest cause of irreversible blindness in the world Estimated that 3%
The second most common causes of blindness worldwide. ( after cataract) The commonest cause of irreversible blindness in the world Estimated that 3% of our population age > 40 have glaucoma In the past:
More informationINTRAOCULAR PRESURE LOWERING EFFECTS OF 0.75% SILIBININ DIHEMISUCCINATE EYE DROPS IN RABBITS MODEL OF α-chymotrypsin-induced GLAUCOMA
Available online at www.pharmacie-globale.info ISSN 0976-8157 Research Article PHARMACIE GLOBALE INTERNATIONAL JOURNAL OF COMPREHENSIVE PHARMACY INTRAOCULAR PRESURE LOWERING EFFECTS OF 0.75% SILIBININ
More informationElements for a Public Summary. Overview of disease epidemiology
VI.2 VI.2.1 Elements for a Public Summary Overview of disease epidemiology Epidemiology of the disease Incidence and prevalence Increased pressure in the eye occurs in more than 100 million people, and
More informationThe Uniocular Drug Trial and Second-Eye Response to Glaucoma Medications
The Uniocular Drug Trial and Second-Eye Response to Glaucoma Medications Tony Realini, MD, 1 Robert D. Fechtner, MD, 2 Sean-Paul Atreides, MD, 3 Stephen Gollance, MD 2 Purpose: To determine if the intraocular
More informationCollaboration in the care of glaucoma patients and glaucoma suspects. Barry Emara MD FRCS(C) Nico Ristorante November 29, 2012
Collaboration in the care of glaucoma patients and glaucoma suspects Barry Emara MD FRCS(C) Nico Ristorante November 29, 2012 Goals of Collaboration Patient-centred and evidence based approach Timely access
More informationOriginal Article Intraocular Pressure Lowering Effect Pak Armed Forces Med J 2015; 65(1): 94-8
Original Article Intraocular Pressure Lowering Effect Pak Armed Forces Med J 2015; 65(1): 94-8 COMPARISON OF INTRAOCULAR PRESSURE LOWERING EFFECT OF LATANOPROST AND TIMOLOL COMBINATION VERSUS LATANOPROST
More informationM Diestelhorst, L-I Larsson,* for The European Latanoprost Fixed Combination Study Group...
199 SCIENTIFIC REPORT A 12 week study comparing the fixed combination of latanoprost and timolol with the concomitant use of the individual components in patients with open angle glaucoma and ocular hypertension
More informationIOP measurements: 8.00 am (trough drug levels) and am (peak drug levels)(2 hours post dose)
This overview of 2% eye drops was presented by Dr. Ravin N. Das, at Hotel Satya Ashoka, on 19-6-2004 in place of Dr. H. S. Ray due to unforseen circumstances. This dinner meeting was sponsored by Cipla
More informationSELECTIVE LASER TRABECULOPLASTY VS MICROPULSE LASER TRABECULOPLASTY FOR THE TREATMENT OF OPEN ANGLE GLAUCOMA AND OCULAR HYPERTENSION
SELECTIVE LASER TRABECULOPLASTY VS MICROPULSE LASER TRABECULOPLASTY FOR THE TREATMENT OF OPEN ANGLE GLAUCOMA AND OCULAR HYPERTENSION DR. MARCELA IRENE DE LEÓN DE LEÓN 1, DR. JOSÉ FRANCISCO ORTEGA SANTANA
More informationChronicity. Narrow Minded. Course Outline. Acute angle closure. Subacute angle closure. Classification of Angle Closure 5/19/2014
Chronicity Narrow Minded The management of narrow angles in the optometric practice Acute Subacute Chronic Aaron McNulty, OD, FAAO Course Outline Classification of Angle Closure Evaluation of narrow angles
More informationProstaglandin synthesis, inhibition, and intraocular pressure
Prostaglandin synthesis, inhibition, and intraocular pressure Steven M. Podos, Bernard Becker, and Michael A. Kass Arachidonic acid, a precursor of prostaglandin E!} administered topically to rabbit and
More informationTHE CHRONIC GLAUCOMAS
THE CHRONIC GLAUCOMAS WHAT IS GLAUCOMA People with glaucoma have lost some of their field of all round vision. It is often the edge or periphery that is lost. That is why the condition can be missed until
More informationCOMPARISON OF IOP LOWERING EFFICACY BRIMONIDINE-TIMOLOL VERSUS DORZOLAMIDE-TIMOLOL FIXED COMBINATION THERAPY
COMPARISON OF IOP LOWERING EFFICACY BRIMONIDINE-TIMOLOL VERSUS DORZOLAMIDE-TIMOLOL FIXED COMBINATION THERAPY DR. HIDAYATULLA KHAN, M.S. (Ophthalmology) SILVER CRESCENT EYE HOSPITAL Noorkhan Bazar, Hyderabad
More informationPreclinical Models of Ocular Glaucoma at CBI
Preclinical Models of Ocular Glaucoma at CBI Comparative Biosciences, Inc. 786 Lucerne Drive Sunnyvale, CA 94085 Telephone: 408.738.9260 www.compbio.com Premier Preclinical Contract Research Organization
More informationOcular hypotensive effects of cholinergic and adrenergic drugs may be influenced by prostaglandins E2 in the human and rabbit eye
European Journal of Ophthalmology / Vol. 13 no. 1, 2003 / pp. 18-23 Ocular hypotensive effects of cholinergic and adrenergic drugs may be influenced by prostaglandins E2 in the human and rabbit eye A.
More informationA Comparative Study of Latanoprost (Xalatan) and Isopropyl Unoprostone (Rescula) in Normal and Glaucomatous Monkey Eyes
A Comparative Study of Latanoprost (Xalatan) and Isopropyl Unoprostone (Rescula) in Normal and Glaucomatous Monkey Eyes Janet B. Serle,* Steven M. Podos,* Yoshiaki Kitazawa, and Rong-Fang Wang* Departments
More informationDERBYSHIRE JOINT AREA PRESCRIBING COMMITTEE (JAPC)
Guidelines for the medical treatment of chronic open angle glaucoma and ocular hypertension Summary: DERBYSHIRE JOINT AREA PRESCRIBING COMMITTEE (JAPC) Diagnosis and management of ocular hypertension (OHT)
More informationThe biphasic intraocular pressure response of rabbits to epinephrine
The biphasic intraocular pressure response of rabbits to epinephrine Maurice E. Langham and Gunter K. Krieglstein A study has been made of the pupillary and intraocular pressure responses of conscious
More informationFocus on Ophthalmology Inside the Eye of the Horse
www.ivis.org Proceedings of the American Association of Equine Practitioners - Focus Meeting Focus on Ophthalmology Inside the Eye of the Horse Raleigh, NC, USA 2012 Next Focus Meetings: August 4-6, 2013
More informationThe legally binding text is the original French version TRANSPARENCY COMMITTEE OPINION. 28 May 2008
The legally binding text is the original French version TRANSPARENCY COMMITTEE OPINION 28 May 2008 COSOPT 20 mg/5 mg/ml, eye drops, solution in single dose container Box of 60 0.2 ml single dose containers
More informationClinical effectiveness and safety of brimonidine (0.2%) versus Dorzolamide (2.0%) in primary open angle
ISSN: 2231-3354 Received on: 07-10-2011 Revised on: 13:10:2011 Accepted on: 21-10-2011 Clinical effectiveness and safety of brimonidine (0.2%) versus Dorzolamide (2.0%) in primary open angle Sharma Neetu,
More informationCourse # Glaucoma Pearls: From OGS to ARVO
Course # 101 DISCLOSURE STATEMENT Consultant-Aerie, Allergan, B + L, Carl Zeiss Meditec, Heidelberg Engineering, Novartis Pharma, Topcon Course Title: Lecturer: Glaucoma Pearls: From OGS to ARVO Murray
More informationDrugs for glaucoma. Ivan Goldberg, Eye Associates and Glaucoma Service, Sydney Eye Hospital and the Save Sight Institute, University of Sydney, Sydney
Drugs for glaucoma Ivan Goldberg, Eye Associates and Glaucoma Service, Sydney Eye Hospital and the Save Sight Institute, University of Sydney, Sydney SYNOPSIS Older drugs for glaucoma reduce intra-ocular
More informationPatients with ocular hypertension or
... REPORTS... An Economic Analysis of Switching to Latanoprost from a β-blocker or Adding Brimonidine or Latanoprost to a β-blocker in Open-Angle Glaucoma or Ocular Hypertension William C. Stewart, MD;
More informationGlaucoma is a heterogeneous
Old and New Drug Classes Expanding To Include Glaucoma Treatments Troy Kish, PharmD, BCPS Glaucoma is a heterogeneous disease characterized by the development of increased intraocular pressure (IOP) that
More informationCases CFEH. CFEH Facebook Case #4
CFEH Cases CFEH Facebook Case #4 A 42 year old female has noticed a floater in her left eye for many years but no flashes. She also reports hazy vision in this eye that has been present all her life. She
More informationCorrespondence should be addressed to Emre Ayintap;
Ophthalmology, Article ID 696302, 4 pages http://dx.doi.org/10.1155/2014/696302 Research Article The Injection of Air/Oxygen Bubble into the Anterior Chamber of Rabbits as a Treatment for Hyphema in Patients
More informationNATIONAL INSTITUTE FOR HEALTH AND CLINICAL EXCELLENCE SCOPE. Glaucoma: diagnosis and management of chronic open angle glaucoma and ocular hypertension
NATIONAL INSTITUTE FOR HEALTH AND CLINICAL EXCELLENCE 1 Guideline title SCOPE Glaucoma: diagnosis and management of chronic open angle glaucoma and ocular hypertension 1.1 Short title Glaucoma 2 Background
More informationTHE CHRONIC GLAUCOMAS
THE CHRONIC GLAUCOMAS WHAT IS GLAUCOMA? People with glaucoma have lost some of their field of all round vision. It is often the edge or periphery that is lost. That is why the condition can be missed until
More informationGlaucoma Disease Progression Role of Intra Ocular Pressure. Is Good Enough, Low Enough?
Glaucoma Disease Progression Role of Intra Ocular Pressure Is Good Enough, Low Enough? Glaucoma Diseases Progression Key Considerations Good number of patients may be diagnosed only after some damage the
More informationAPPROVED PACKAGE INSERT FOR XALATAN EYE DROPS. Each millilitre contains latanoprost 50 µg and benzalkonium chloride 0,02 % m/v as preservative.
SCHEDULING STATUS: S4 APPROVED PACKAGE INSERT FOR XALATAN EYE DROPS PROPRIETARY NAME (and dosage form): XALATAN Eye Drops COMPOSITION: Each millilitre contains latanoprost 50 µg and benzalkonium chloride
More informationBETAGAN Allergan Levobunolol HCl Glaucoma Therapy
BETAGAN Allergan Levobunolol HCl Glaucoma Therapy Action And Clinical Pharmacology: Levobunolol is a noncardioselective beta- adrenoceptor antagonist, equipotent at both beta1 and beta2 receptors. Levobunolol
More informationManaging the Patient with POAG
Managing the Patient with POAG Vision Institute Annual Fall Conference Mitchell W. Dul, OD, MS, FAAO mdul@sunyopt.edu Richard J. Madonna, MA, OD, FAAO rmadonna@sunyopt.edu Ocular Hypertension (OHT) Most
More informationMild NPDR. Moderate NPDR. Severe NPDR
Diabetic retinopathy Diabetic retinopathy is the most common cause of blindness in adults aged 35-65 years-old. Hyperglycaemia is thought to cause increased retinal blood flow and abnormal metabolism in
More informationAn Internal Report* on The Effect of GAGases on Outflow Facility in the Bovine Eye. April, Abstract
An Internal Report* on The Effect of GAGases on in the Bovine Eye by Mark Johnson and Haiyan Gong Fluid Mechanics Laboratory, MIT Boston University School of Medicine April, 996 * This report is for use
More informationOcular Hypotensive Efficacy of Netarsudil Ophthalmic Solution 0.02% Over a 24-Hour Period: A Pilot Study
Ocular Hypotensive Efficacy of Netarsudil Ophthalmic Solution 0.02% Over a 24-Hour Period: A Pilot Study James H. Peace, M.D. 1, Casey K. Kopczynski, Ph.D. 2, and Theresa Heah, M.D. 2 1 Inglewood, CA 2
More informationPractical approach to medical management of glaucoma DR. RATHINI LILIAN DAVID
Practical approach to medical management of glaucoma DR. RATHINI LILIAN DAVID Glaucoma is one of the major causes of visual loss worldwide. The philosophy of glaucoma management is to preserve the visual
More informationph and Drug Ionization Affects Ocular Pressure Lowering of Topical Carbonic Anhydrase Inhibitors
ph and Drug Ionization Affects Ocular Pressure Lowering of Topical Carbonic Anhydrase Inhibitors William F. Brechue and Thomas H. Maren Purpose. To evaluate the effect of drug ionization on the ocular
More informationClass Update with New Drug Evaluation: Glaucoma Drugs
Copyright 2012 Oregon State University. All Rights Reserved Drug Use Research & Management Program Oregon State University, 500 Summer Street NE, E35 Salem, Oregon 97301-1079 Phone 503-947-5220 Fax 503-947-1119
More informationKEY MESSAGES. Details of the evidence supporting these recommendations can be found in the above CPG, available on the following websites:
QUICK REFERENCE FOR HEALTHCARE PROVIDERS KEY MESSAGES 1. Glaucoma is a chronic eye disease that damages the optic nerve, & can result in serious vision loss and irreversible blindness. 2. Glaucoma diagnosis
More informationROBERT L. SHIELDS, M.D. GLAUCOMA SURGERY AND TREATMENT
1 CURRICULUM VITAE ROBERT L. SHIELDS, M.D. GLAUCOMA SURGERY AND TREATMENT University of Colorado Health Eye Center Cherry Creek 2000 South Colorado Boulevard Annex Building, Suite 100 Denver, Colorado
More informationSTUDY OF EFFECTIVENESS OF LENS EXTRACTION AND PCIOL IMPLANTATION IN PRIMARY ANGLE CLOSURE GLAUCOMA Sudhakar Rao P 1, K. Revathy 2, T.
STUDY OF EFFECTIVENESS OF LENS EXTRACTION AND PCIOL IMPLANTATION IN PRIMARY ANGLE CLOSURE GLAUCOMA Sudhakar Rao P 1, K. Revathy 2, T. Sreevathsala 3 HOW TO CITE THIS ARTICLE: Sudhakar Rao P, K. Revathy,
More informationPublic Assessment Report. Scientific discussion. Cosopt Preservative-Free. 20 mg/5 mg/ml, eye drops, solution. Dorzolamide/Timolol DK/H/0134/002/E001
Public Assessment Report Scientific discussion Cosopt Preservative-Free 20 mg/5 mg/ml, eye drops, solution Dorzolamide/Timolol DK/H/0134/002/E001 This module reflects the scientific discussion for the
More informationHussain Saad H et al. IRJP 2 (3)
INTERNATIONAL RESEARCH JOURNAL OF PHARMACY ISSN 2230 8407 Available online http://www.irjponline.com Research Article THE EFFECT OF TOPICAL ALISKIREN ON OCULAR HYPERTENSION INDUCED BY WATER LOADING IN
More information636 Reports Invest. Ophthalmol. Visual Sci.
636 Reports Invest. Ophthalmol. Visual Sci. three optically determined volumes. Furthermore, no statistically significant difference existed between the optically determined volumes and the fluorescein
More informationSAFE, PERMANENT EYE-COLOR CHANGE
SAFE, PERMANENT EYE-COLOR CHANGE Prepared by Gregg Homer JSD (PhD) February 1, 2012 THE PIGMENTARY GLAUCOMA ISSUE Glaucoma Defined Glaucoma is currently defined as a disturbance of the structural or functional
More informationManagement of Angle Closure Glaucoma Hospital Authority Convention 18 May 2015
Management of Angle Closure Glaucoma Hospital Authority Convention 18 May 2015 Jimmy Lai Clinical Professor Department of Ophthalmology The University of Hong Kong 1 Primary Angle Closure Glaucoma PACG
More informationEfficacy and Safety of Latanoprost Eye Drops for Glaucoma Treatment: A 1-Year Study in Japan
Efficacy and Safety of Latanoprost Eye Drops for Glaucoma Treatment: A 1-Year Study in Japan Masanobu Suzuki,* Hiromu K. Mishima,* Kanjiro Masuda, Makoto Araie, Yoshiaki Kitazawa and Ikuo Azuma *Department
More informationTransforming Glaucoma Care with OTX-TP Sustained Release Travaprost Plug
Transforming Glaucoma Care with OTX-TP Sustained Release Travaprost Plug Jonathan H. Talamo, M.D. Chief Medical Officer Glaucoma 360 January 29, 2016 Page 1 Forward-Looking Statements Any statements in
More informationGlaucoma Basics OVERVIEW GENETICS SIGNALMENT/DESCRIPTION OF PET
Glaucoma Basics OVERVIEW Glaucoma is a disease of the eye, in which the pressure within the eye is increased (pressure within the eye is known as intraocular pressure or IOP) High intraocular pressure
More informationInt. J. Pharm. Sci. Rev. Res., 35(1), November December 2015; Article No. 18, Pages: *Corresponding author s
Research Article Tolerable Ocular Hypotensive Effect of Topically Applied Sildenafil in Ocular in Normotensive and Betamethasone-Induced Hypertensive Rabbits Waleed K. Abdulsahib 1, Adeeb Al-Zubaidy 1,
More informationAbbreviated Class Update: Ophthalmics, Glaucoma agents. Month/Year of Review: August 2012 End date of literature search: June 2012
Copyright 2012 Oregon State University. All Rights Reserved Drug Use Research & Management Program Oregon State University, 500 Summer Street NE, E35, Salem, Oregon 97301-1079 Phone 503-947-5220 Fax 503-947-1119
More informationJMSCR Vol 3 Issue 9 Page September 2015
www.jmscr.igmpublication.org Impact Factor 3.79 ISSN (e)-2347-176x DOI: http://dx.doi.org/10.18535/jmscr/v3i9.29 Secondary Glaucoma: Treatable Visual Threat in Uveitis? Authors Dr Sanjoy Chowdhury MS.DO.DNB
More informationComparison of Intraocular Pressure Lowering Effect of Travoprost and Timolol / Dorzolamide Combination in Primary Open Angle Glaucoma
Original Article Comparison of Intraocular Pressure Lowering Effect of Travoprost and Timolol / Dorzolamide Combination in Primary Open Angle Glaucoma Farooq Khan, Mubashir Rehman, Omar Ilyas, Mohammad
More informationIsoproferenol Stimulates Aqueous Flow in Humans With Horner's Syndrome
Investigative Ophthalmology & Visual Science, Vol. 29, No. 4, April 1988 Copyright Association for Research in Vision and Ophthalmology Isoproferenol Stimulates Aqueous Flow in Humans With Horner's Syndrome
More informationEvolution of the Definition of Primary Open-Angle Glaucoma
OCULAR BLOOD FLOW IN GLAUCOMA MANAGEMENT AHMED HOSSAM ABDALLA PROFESSOR AND HEAD OF OPHTHALMOLOGY DEPARTEMENT ALEXANDRIA UNIVERSITY Evolution of the Definition of Primary Open-Angle Glaucoma Former definition
More informationJuly 2016 Corporate Presentation. DAVID P. SOUTHWELL, President and CEO Cantor Fitzgerald 2 nd Annual Health Care Conference
July 2016 Corporate Presentation DAVID P. SOUTHWELL, President and CEO Cantor Fitzgerald 2 nd Annual Health Care Conference Forward Looking Statements This presentation contains forward-looking statements
More informationACETYLCHOLINE IN CATARACT SURGERY*
Brit. J. Ophthal. (1966) 50, 429 ACETYLCHOLINE IN CATARACT SURGERY* BY Atlantic City, New Jersey ALTHOUGH the use of acetylcholine as a miotic agent in ophthalmic surgery is not new, it has not been widely
More informationCharacterization of Ciliary Muscle Relaxation Induced by Various Agents in Cats
1188 Investigative Ophthalmology & Visual Science, May 1995, Vol. 36, No. 6 Characterization of Ciliary Muscle Relaxation Induced by Various Agents in Cats Yasumasa Goh* Yasuyuki Hotehama,\ and Hiromu
More informationN W KNOW. What You Need to Know. What You Know About Glaucoma Could Save Your Sight
What You Need to Know is the second leading cause of blindness around the world, so it is important to understand its significance and treatment options. While glaucoma is not curable, there are several
More informationThe goals of glaucoma therapy are to
3 CREDITS Article 2 Canine Glaucoma: Medical and Surgical Treatment Options* Author Shelby L. Reinstein, DVM, MS, with Beasley at The University of Pennsylvania. Photograph by Holly Palin Shelby L. Reinstein,
More informationAbbreviated Update: Ophthalmic Glaucoma Agents
Drug Use Research & Management Program Oregon State University, 500 Summer Street NE, E35, Salem, Oregon 97301-1079 Phone 503-945-5220 Fax 503-947-1119 Abbreviated Update: Ophthalmic Glaucoma Agents Month/Year
More information