<prompt> Giant papillary conjunctivitis can be secondary to:TrachomaContact lensPhlyctenular conjunctivitisVernal kerato conjunctivitis  <response>: Ans. b Contact lensGIANT PAPILLARY CONJUNCTIVITIS It is the inflammation of conjunctiva with formation of very large sized papillae. Cause: It is a localized allergic response to a physically rough or deposited surface contact lens, prosthesis, left out nylon sutures. Symptoms: Itching, stringy discharge and reduced wearing time of contact lens or prosthetic shell. Treatment: The offending cause should be removed. Disodium cromoglycate is known to relieve the symptoms and enhance the rate of resolution. GIANT PAPILLARY CONJUNCTIVITIS It is the inflammation of conjunctiva with formation of very large sized papillae. Cause: It is a localized allergic response to a physically rough or deposited surface contact lens, prosthesis, left out nylon sutures. Symptoms: Itching, stringy discharge and reduced wearing time of contact lens or prosthetic shell. Treatment: The offending cause should be removed. Disodium cromoglycate is known to relieve the symptoms and enhance the rate of resolution. 