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DiseasesofConjunctiva - Diseases of Conjunctiva Dr Sanjay...

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12/24/11 Dr Sanjay Shrivastava 1 Diseases of Conjunctiva
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12/24/11 Dr Sanjay Shrivastava 2 Conjunctivitis Classification I Based on onset a. Acute b. Sub-acute c. Chronic II Based on type of Exudates a. Serous (Viral, allergic, toxic)
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12/24/11 Dr Sanjay Shrivastava 3 Classification of Conjunctivitis b. Catarrhal (allergic – Ropy or thread like thick mucoid discharge) c. Mucopurulent d. Purulent c. Pseudo-membranous / Membranous
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12/24/11 Dr Sanjay Shrivastava 4 Classification of Conjunctivitis III Based on Conjunctival Reaction a. Follicular b. Papillary c. Granulomatous IV Based on Etiology a. Infectious (Bacterial, Viral, Chlamydial, Fungal and parasitic) b. Non-infectious (Allergic, Irritants
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12/24/11 Dr Sanjay Shrivastava 5 Classification of Conjunctivitis Endogenous or autoimmune, Dry Eye, Toxic (chemical or drug induced, self inflicted) and Idiopathic.
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12/24/11 Dr Sanjay Shrivastava 6 Risk Factors for the Development of Bacterial Conjunctivitis Disruption of host defense mechanism caused by: 1. Dry Eye 2. Exposure due to lid retraction, exophthalmos, lagophthalmos, inadequate blinking 3. Nutritional deficiencies/ Avitaminosis A
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12/24/11 Dr Sanjay Shrivastava 7 Risk Factors for the Development of Bacterial Conjunctivitis .. contd 4. Local or Systemic Immune Deficiency: * after topical and systemic immunosupressive therapy * Nasolacrimal duct obstruction and infection * Radiation damage * Trauma * Surgery
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12/24/11 Dr Sanjay Shrivastava 8 Risk Factors for the Development of Bacterial Conjunctivitis.. Contd * Prior Conjunctival inflammation or infection * Systemic Infection * Exogenous inoculation
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12/24/11 Dr Sanjay Shrivastava 9 Gonorrhoeal Conjunctivitis I. Epidemiological Aspect Rare in developed countries, still seen in individuals and communities where Gonorrhoea is still a problem and hygienic standards are poor.
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12/24/11 Dr Sanjay Shrivastava 10 Gonorrhoeal Conjunctivitis Etiology – Caused by Neisseria Gonorrhoeae (a bun- shaped Gram- negative intracellular diplococcus). Neisseria Catarrhalis may be seen/found in chronic forms. Condition is found in cases suffering from Gonorrhoeal genital infection. Incubation period is few hours to three days.
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12/24/11 Dr Sanjay Shrivastava 11 Clinical Features Symptoms Swelling of eyelids, Pain, redness, inability to open eye(s), purulent discharge, grittiness, Diminution of Vision
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12/24/11 Dr Sanjay Shrivastava 12 Clinical Features Signs Acute disease, occurring usually in adult males. Often in RE to begin with. Lids are swollen. Upper lids are tense, overhanging on lower lid. Matting of lashes and pus on lids margins. Eversion is difficult. Deep red velvety conjunctiva sometimes with membrane After two to three weeks discharge diminishes but subacute form of conjunctivitis with presence of Gonococci persists for several weeks.
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12/24/11 Dr Sanjay Shrivastava 13 Signs … Contd Pre-auricular lymphadenopathy, tenderness and suppuration
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12/24/11 Dr Sanjay Shrivastava 14 Clinical Features No immunity is conferred by an attack.
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