<prompt> Spring catarrh is treated with which of the following drugs:Olopatadine dropsNormal saline eye dropsCiprofloxacinCarboxymethylcellulose CMC eye drops  <response>: Ans. a Olopatadine dropsRef.: A.K. Khurana 6th ed. 79-80CONJUNCTIVITIS The inflammation of the conjunctiva is characterized by redness associated with watery or mucopurulent discharge.VERNAL KERATO CONJUNCTIVITIS OR SPRING CATARRH It is a recurrent , bilateral, interstitial, self limiting, allergic inflammation of the conjunctiva seen in children usually in summer months. Etiology: it is considered a hypersensitivity reaction to some exogenous allergen such as grass pollen etc. Clinical features: characterized by marked burning and itching sensation which is usually in tolerable. Lacrimation. Stringly ropy discharge. Usually upper tarsal conjunctiva of both eyes are involved. Lesion are characterized as cobble-stone or pavement stone fashion. Horner Trantas spots: Presence of discrete whitish raised dots along the limbus. Treatment Mast Cell Stabilizers Olopatadine Sodium ChromoglycateSimple allergic conjunctivitis: Non specific allergic rhinitis associated with hay fever or seasonalperennial allergic conjunctivitis.GIANT PAPILLARY CONJUNCTIVITIS Conjunctivitis with formation of large sized papillae in upper tarsal conjunctiva due to localized allergy Against contact lens nylon suturesprosthesis. Treatment: Removal of offending agent Mast Cell Stabilizers Acute hemorrhagic conjunctivitis: It is also called Apollo conjunctivitis. It is caused by picornavirus enterovirus type 70.DISCHARGEETIOLOGICAL AGENT Purulent mucopurulent Watery Ropy Mucopurulent Bacterial conjunctivitis Viral conjunctivitis Allergic conjunctivitis Chlamydial conjuntivitis 