Keratitis in contact lens wearer is caused by all except ?

Ans. is 'd' i.e., Wilson's disease Ectopia lentis o Ectopia lentis is defined as displacement or malposition of the crystalline lens of the eye. The lens is considered dislocated (luxated) when it lies completely outside the lens patellar fossa. The lens is described as subluxated when it is paially displaced but contained within the lens space. Causes are i) Homocystinuria ii) Marfan syndrome iii) Weil - Marchesani sydrome iv) Ehler Dan los syndrome v) Hyperlysinemia vi) Sulphite oxidase deficiency vii) Stickler syndrome viii) Trauma ix) Consecutive / spontaneous (Hypermature cataract, buphthalmos, high myopia)