You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Most powerful refractory surface of eye is - and explain in detail?
Ans. is 'b' i.e., Cornea o The cornea, with the anterior chamber and lens, refracts light, with the cornea accounting for approximately two- thirds of the eye's total optical power.o In humans, the refractive power of the cornea is approximately 43 dioptres.o The diopteric power of reduced eye is + 60D, of which + 44D is contributed by cornea and + 16D by the crystalline lens.o Total diaopteric power of schematic eye is + 58D, of which cornea contributes +43D and the lens +15D.