1. Allergic conjunctivitis

2. conjunctiva
Modified mucous membrane that covers the inner surface of the lids and the globe to the edge of the cornea.
Highly vascular tissue.
Protects the globe.

3. Allergic conjunctivitis
Definition: allergic inflammation of the conjunctiva.
Etiology:
1) transient allergen: pollen
2) persistent allergen: house dust mite

4. classification Seasonal allergic conjunctivitis
Atopic keratoconjunctivitis
Vernal keratoconjunctivitis
Giant papillary conjunctivitis

5. Clinical features Itching (hallmark symptom) Photophobia
Foreign body sensation
Tearing
Blepharospasm
Watery discharge
Mucoid discharge

6. Clinical features Examination:
Red eye (bilateral conjunctival injection)
Chemosis
Periorbital swelling (lid edema)
Mucoid discharge
Eye lid eczema

8. Types of conjunctival reaction
Follicles
Papillae
Giant papillae

9. Diagnostic workup History: allergic disease (asthma, eczema)
use of topical preprations
Seasonal history
Contact lenses
Family history of atopy

10. Investigations Conjunctival scrape esinophils. Skin prick test.
Patch test.
Measurement of tear levels of inflamatory mediators (IgE, histamine).

11. Management

12. Non specific: cold compresses, mucolytic drops.
Topical antihistamine.
Oral antihistamine.
Mast cell stabilizers.
Steroids.
Cyclosporins.
NSAID.

13. type history examination treatment Seasonal Conj. Acute, itching VKC
Conjunctival injection, chemosis
Avoid allergens
Antihistamine
immunotherapy
VKC
Chronic,
Mucoid discharge
GPC
Mast cell stab.
Topical NSAID
Topical antihistamine
Topical steroids
AKC
Pain
blurring of vision
Watery discharge
Lid swelling
Cataract, GPC
Cold compress
Antihistamins
Mast cell stab
Lenses, FB
Foreign body sensation
Mechanical ptosis,
Cobblestone papillae
Steroids
antihistamins