The water content in the lens is: (A) 1%, (B) 28%, (C) 35%, (D) 64%
Answer is D. (Refer: AK Khurana Comprehensive Ophthalmology, 6th edition, pg no. 181)The lens is composed of 64% water, 35% protein, and 1% lipid, carbohydrate and trace elements. The protein concentration in the lens is actually the highest amongst body tissues. The main types of proteins are alpha (31%), beta (55%) and gamma (2%) crystallins, and insoluble albuminoids (12%)