Viral Conjuctivitis of Eye

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Slide 1 :

VIRAL CONJUCTIVITIS OF EYE

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INTRODUCTION Mostly virus tend affect the epithelium of Conjunctiva & Cornea so, typical Viral lesion is a keratoconjunctivitis. Some viral infections mostly involves Conjunctiva than Cornea. VIRAL INFECTIONS OF CONJUNCTIVA INCLUDE: Adenovirus Conjunctivitis Herpes Simplex Keratoconjunctivitis Herpes Zoster Conjunctivitis Poxvirus Conjunctivitis Myxovirus Conjunctivitis Paramyxovirus Conjunctivitis Arbovirus Conjunctivitis

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DEPENDING ON CLINICAL PRESENTATIONS

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ACUTE SEROUS CONJUNCTIVITIS ETIOLOGY: Typically mild grade of viral infection which doesn’t give rise to follicular response. CLINICAL FEATURES: Mild degree of congestion. Watery discharge. Boggy swelling of Conjunctival mucosa. TREATMENT: Broad spectrum antibiotic eye drops used for 3 times daily for about 1 week to prevent secondary bacterial infection.

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ACUTE HAEMMORHAGIC CONJUNCTIVITIS INTRODUCTION : Acute inflammation of conjunctiva characterized by multiple Conjunctival haemorrhages,hyperaemia & follicular hyperplasia. ETIOLOGY: By Picornavirus (enterovirus type 70) . CLINICAL PICTURE: It occurs in epidemic areas such has Far East, Africa , England & so it is called “ Epidemic Hemorrhagic Conjunctivitis”. It is also called as “ Apollo conjunctivitis” as Apollo XI Spacecraft was launched in same year(1969).

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INCUBATION PERIOD: It is about 1-2 days. SYMPTOMS: Pain. Redness. Watering. Mild photophobia. Transient blurring of vision. Lid swelling. SIGNS: Congestion. Chemosis. Multiple haemorrhages in bulbar conjunctiva.

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TREATMENT: Prophylactic measures are important. Mild follicular hyperplasia.. Lid edema & Pre – auricular lymphadenopathy Broad spectrum antibiotic eye drops to prevent secondary bacterial infection which is self limiting for 5-7 days.

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FOLLICULAR CONJUNCTIVITIS INTRODUCTION : Inflammation of conjunctiva characterized by :- Follicles. Conjunctival hyperaemia. Discharge from eyes. Follicles formed due to localized aggregation of lymphocytes in adenoid layer of Conjunctiva. Follicles appear as tiny, greyish white translucent , rounded swellings 1-2 mm in diameter appearance as boiled sago grains. TYPES: Acute follicular Conjunctivitis. Chronic follicular Conjunctivitis. Special type like Trachoma.

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ACUTE FOLLICULAR CONJUNCTIVITIS INTRODUCTION: It is due to marked follicular hyperplasia especially of lower fornix & lower palpebral conjunctiva. GENERAL CLINICAL FEATURES: SYMPTOMS: Redness Watering discharge Mild mucoid discharge Mild photophobia Feeling discomfort Foreign body sensation

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SIGNS: Conjunctival hyperamia. Multiple follicles more lower lid than upper lid. ETIOLOGICALTYPES: Adult inclusion conjunctivitis. Epidemic keartoconjunctivitis. Pharyngoconjunctival fever. Newcastle conjunctivitis. Acute herpetic conjunctivitis.

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EPIDEMIC KERATOCONJUNCTIVITIS INTRODUCTION: Mostly associate with superficial punctuate keratits & usually occurs in epidemics hence name EKC. ETIOLOGY: Caused by adenovirus type 8 &19 this is highly contagious. INCUBATION PERIOD: 8 DAYS CLINICAL STAGES: Acute serous conjunctivitis : Non-specific Conjunctival hyperaemia, mild chemosis & lacrimation. Typical acute follicular conjunctivitis :Formation of follicles in lower lid.

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Acute pseudomembranous conjunctivitis : due to formation Pseudo membrane on Conjunctival surface. Preauricular lymphadenopathy. TREATMENT: With adenine arabinoside (Ara-A).

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PHARYNGOCONJUNCTIVAL FEVER ETIOLOGY: Due to adenovirus infection subtypes 3 & 7. CLINICAL PICTURE: Acute follicular Conjunctivitis Pharyngitis Fever Pre-auricular lymphadenopathy TREATMENT: Supportive

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NEW CASTLE CONJUNCITIVITIS ETIOLOGY: New Castle virus usually by poultry workers. CLINICALLY: Same as Pharyngo Conjunctival fever.

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ACUTE HERPETIC CONJUNCTIVITIS INTRODUCTION: Is usually accompaniment of “Primary Herpetic infection”. ETIOLOGY: Herpes simplex virus Type-1 by kissing / other personal contacts. HSV Type- 2 associate with genital infection. CLINICAL PICTURE: Usually unilateral infection (Incubation period 3-10 Days). TYPICAL FORM: Associated with other lesions of primary infection such as vesicular lesions of face and lids.

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ATYPICAL FORM: It resemble Epidemic KeratoConjunctivitis also evolve through phases of Nonspecific hyperameia , follicular hyperplasia , Pseudomembrane formation. Preauricular lymphadenopathy TREATMENT: Anti Viral drugs which usually self – limiting.

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CHRONIC FOLLICULAR CONJUNCTIVITIS INTRODUCTION: Associate with follicular hyperplasia , predominantly lower lid. ETIOLOGY TYPES: Infective chronic follicular conjunctivitis. Toxic type chronic follicular conjunctivitis. chemical chronic follicular conjunctivitis. chronic allergic follicular conjunctivitis.

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INFECTIVE CHRONIC FOLLICULAR CONJUNCTIVITIS It is a condition of “benign folliculosis” with super added infection. Is also called as school folliculosis . Generalized lymphoid hyperplasia of upper respiratory tract . Also with malnutrition , constitutional disorders , unhygienic conditions In this typically follicles arranged in lower palpebral conjunctiva as parallel rows With associated with Conjunctival hyperameia.

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TOXIC TYPE CHRONIC FOLLICULAR CONJUNCTIVITIS Patients suffering from Molluscum contagisoum. Due toxic cellular debris desquamated into Conjunctival sac from Molluscum contagisoum present on lid margin.

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types of conjunctivitis, etiology, clinical features & treatment of viral conjunctivitis
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