Eye infections. Hossain Jabbari, MD, MPH, ID & TM Infectious Diseases Dept., Digestive Diseases Research Institute (DDRI) TUMS
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2 Eye infections Hossain Jabbari, MD, MPH, ID & TM Infectious Diseases Dept., Digestive Diseases Research Institute (DDRI) TUMS
3 Eye: An overview
4 Eye: An overview The eye is one of the most complex parts of the body. There are more than a billion parts all working in synchronization. The eyesight is one of the most important senses, a fact supported by the amount of brain that is dedicated to process the information received through the eye Eye in spiritual concepts and as a communication tool!
5 Eye injuries: as an overview 1 Physical hazards: Trauma, Sharp injuries 2 Chemical Hazards: Chemical burns (Acid, alkaline), 3 Biological Hazards: bacteria, viruses, parasites, 4 Genetic hazards: coloboma,
6 Coloboma
7
8 Eye Anatomy (Cont d)
9 Eye Anatomy (Cont d)
10 Eye Anatomy (Cont d)
11 Eye Anatomy (Cont d)
12 Eye Anatomy
13 Eye Anatomy (Cont d)
14 Eye Anatomy (Cont d)
15 Eye Infections
16 External Eye Diseases
17 Rt. facial nerve paresis
18 Abscess of meibomian gland (meibomianitis )
19 Chalazion
20 Purulent dacryocystitis OD
21 Chronic dacryocysitis with abscess formation
22 Elephantiasis Nostras
23 Herpes Zoster
24 Internal hordeolum - a meibomian abscess
25 HSV I of the lid
26 Abscess of meibomian gland
27 Preseptal cellulitis
28 Trachoma with extensive superior tarsal conjunctival scarring
29 Varicella/ chickenpox: loss of lashes lower lid
30 Viral papilloma
31 Tularemia, oculoglandular
32 Herpes zoster ophthalmicus with Hutchinson's sign
33 Herpes zoster ophthalmicus
34 Conjunctiva
35 Conjunctiva (Cont d) The conjunctiva (plural conjunctivas or conjunctivae): Clear mucous membrane that covers the sclera (white part of the eye) and lines the inside of the eyelids. It helps lubricate the eye by producing mucus and tears
36 Conjunctiva (Cont d) Conjungtivitis ( Pink eye or Madras eye) : Inflammation of the conjunctiva Red eye (hyperaemia), irritation (chemosis) and watering (epiphora) of the eyes are symptoms common to all forms of conjunctivitis
37 Conjunctiva (Cont d) Conjungtivitis causes: Viral conjunctivitis Allergic conjunctivitis Bacterial conjunctivitis Chemical conjunctivitis Neonatal conjunctivitis is often defined separately due to different organisms
38 Viral conjunctivitis: Conjunctiva (Cont d) Adenovirus (the most common cause) HSV (the most problematic) Less common causes include:vzv, enterovirus 70, Coxsackie A24, molluscum contagiosum, vaccinia, HIV Rarely, during systemic infection ( influenza virus, EBV, paramyxovirus (measles, mumps, Newcastle), rubella)
39 Molluscum contagiosum: with follicular conjunctivitis
40 Conjunctiva (Cont d) Acute hemorrhagic conjunctivitis (AHC): A prominent hemorrhagic component soon appears that is characteristic of this infection Coxsackie group A24 (CA24) and enterovirus E70 (EV70) strains
41 Acute Hemorrhagic Conjunctivitis (AHC)
42 Conjunctiva (Cont d) Epidemic Keratoconjunctivitis (EKC): A type of adenovirus ocular infection Sudden onset of acute follicular conjunctivitis with watery discharge, hyperemia, chemosis, and ipsilateral preauricular lymphadenopathy Pharyngo Conjunctival Fever (PCF)
43 Adenoviral conjunctivitis
44 Viral keratoconjunctivitis
45 Epidemic Keratoconjunctivitis
46 Epidemic Keratoconjunctivitis
47 Conjunctiva (Cont d) Bacterial conjunctivitis : Streptococci Staphylococci Chlamydia GC
48 Bacterial Conjunctivitis
49 Bacterial conjunctivitis
50 Acute mucopurulent bacterial conjunctivitis
51 Conjunctiva (Cont d) Allergic conjunctivitis Itching and tears Seasonal conjunctivitis Rhino conjunctivitis
52 Allergic conjunctivitis
53 Conjunctiva (Cont d) Chemical conjunctivitis Due to either an acidic or alkali substance Litmus paper is an easy way to rule out the diagnosis ( Normal ph : ) Irrigation with copious water
54 Conjunctiva (Cont d) Neonatal conjunctivitis A form of bacterial conjunctivitis contracted by newborns during delivery GC, Chlamydia Chemical (Silver nitrate)
55 Cornea
56 Cornea (Cont d)
57 Cornea (Cont d) Keratitis: Keratitis is inflammation of the cornea Superficial Keratitis Deep Keratitis
58 Cornea (Cont d) Amoebic keratitis: (the most serious corneal infection) Acanthamoeba keratitis (AK) in contact lens wearers
59 Amoebic keratitis
60 Cornea (Cont d) KeratitisBacterial keratitis Staphylococcus aureus Pseudomonas aeruginosa
61 Bacterial Keratitis
62 Pseudomonas keratitis (suppurative)
63 Interstitial keratitis with congenital syphilis
64 Inactive interstitial keratitis in congenital syphilis
65 Corneal ulcer from bacterial infection
66 Cornea (Cont d) Fungal keratitis: Fusarium Candida
67 Cornea (Cont d) Viral keratitis: Herpes simplex keratitis (Dendritic ulcer) Herpes zoster keratitis
68 Dendritic keratitis HSV - active
69 Disciform keratitis (HSV)-active with neovascularization
70 HSV Disciform keratitis - active stage with neovascularization of cornea.
71 HSV keratitis & HSV iritis
72 Herpetic Keratitis
73 Cornea (Cont d) Parasititic Keratitis: Onchocercal keratitis : O. volvulus infection by infected blackfly bite River blindness
74 Scleritis & Episcleritis
75 Episcleritis
76 Scleritis
77 Scleritis
78 Episcleritis, sectoral
79 Retina
80 Infection of other parts of the eye
81 Uveitis Uvea: 1. Iris 2. Chroid 3. Cilliary body
82 Endogenous suppurative iritis
83 Cataracta complicata with chronic uveitis
84 TB Uveitis
85 Tuberculosis (TB) uveitis - iritis
86 Hypopyon
87 Trachoma with pannus crassus
88 Trachoma: a perfect photo of established trachoma with conjunctivitis, florid pannus, corneal scarring, and trichiasis
89 Leprosy: patient is blind due to leprotic uveitis and keratitis
90 Syphilis and Trachoma: tertiary syphilis with gumma distruction of nose and trachoma
91 Endophthalmitis
92 Pan-endophthalmitis
93 Diagnosis
94 Treatment
95 Thanks for your kind attention!
96
PAINFUL PAINLESS Contact lens user BOV
Common Causes Allergies Infections Ocular Cornea, uveitis, endophthalmitis Orbital Orbital cellulitis Inflammation Uveitis Scleritis / episcleritis Glaucomas Trauma Foreign bodies Chemical injuries History
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