AMIRAH BT JAMALUDINNURHIDAYATUL HUSNA BT JOHARI

Allergic conjunctivitis is an inflammation of the conjunctiva (the membrane covering the white part of the eye) due to allergy.

If something irritates this conjunctiva, eyes may become red and swollen. The eyes also may itch, hurt or watery.

It is also known as “pink eye”.

• Definition : Occurring as the result of exposure to a wide variety of allergens

• Simple allergic conjunctivitis often results from exposure to eye medications or contact lens solutions (or their preservatives).

• Symptoms: • Itching and tearing in response to antigen

exposure.

• Signs :• Unilateral or bilateral• Mild to moderate conjunctiva hyperaemia• Chemosis

Management: General measures include:

Avoid allergen where possible Avoid wearing contact lenses until symptoms and

signs resolve

Avoid rubbing the eyes Cool compresses and preservative-free lubricants

may also help

If severe,- Oral or topical anti-histamine- Mast cell stabilizer

Definition: Kerato-conjunctivitis produced as an allergy to an endogenous agent.

Aetiology: It is a manifestation of allergy to an endogenous toxin as

Tuberculo-protein Intestinal parasites Septic foci as in tonsils and adenoids

Symptoms : Discomfort and lacrimation If cornea involved,photophobia and blepharospasm

occur

Signs : ◦ Phlyctens

Rounded nodules Size 1-3 mm Grayish in color Eleveated above the surface Surrounded by a small area of injection

• Complications:(1)Cornea A-Corneal phlycten B-Phlyctenular ulcers C-Phlyctenular pannus

(2)Eczema of lids(3)Muco-purulent conjunctivitis: due to secondary infection

with staph. Aureus(4)Recurrence: are common if the cause is not removed.

• Treatments : Local cortisone drops and ointment Atropine if cornea is involved Fascicular ulcer needs cautery with carbolic + Periotomy &

cautery of vessel

Definition : It is a bilateral seasonal conjunctivitis recurring in the warm seasons.

Aetiology : It is an allergy of the conjunctiva to an unknown exogenous factor.

The contributing factors are : U.V rays Heat Dust

Incidence : Age : Children Sex : boys more Season : summer (not spring)

Symptoms : Itching Photophobia Lacrimation Ropy discharge (thread): formed of

mucus,eosinophils and epithelial debris so that it is scanty,white and elastic

Treatment:

General:-Antiallergy drugs (antistine,Benadryl,calcium etc)

Local:-Dark glasses for photophobia-Cold compression for sensation of heat-Frequent washing with cold lotion as 4 % boric acid-Local antihistaminic as antistine of preisoline drops-Local vasoconstrictor as adrenaline or privine for hyperaemia-Local cortisone drops (Dexamethasone 0.1 %) pulse therapy during an attack every 2 hours for 5 days only to guard against its complication (may induce glaucoma)-Local disodium chromoglycate eye drops to stabilize the mast cells “one month before summer”

Definition : It is an allergic conjunctivitis characterized by the formation of giant papillae.

It occurs most probably due to mechanical irritation of the palpebral conjunctiva in case of :

-Contact lenses (more with extended wear CL and with lens deposits)

-Artificial eyes-Prominent suture following surgery

Symptoms : -Red Eye -Mucoid discharge

-Itching

Signs : Conjunctival hyperaemia Giant papillae on superior tarsal conjunctiva Superficial punctuate keratitis Peripheral corneal subepithelial infilterates

Treatment : Stops using contact lenses for 2 weeks Topical mast cell stabilizer (disodium

chromoglycate) 4 times daily Topical steroids for few days only Use new daily wear lenses after complete

cure 

Thank youSyukranTerima kasih…