for a normal eye the cornea of eye provides a converging power of 40D and the least converging power of eye lens behind the cornea is 20D. using the information , the distance between the retina and the cornea-eye lens can be estimated to be -

for a normal eye the cornea of eye provides a converging power of 40D

1.	for a normal eye the cornea of eye provides a converging power of 40D and the least converging power of eye lens behind the cornea is 20D. using the information , the distance between the retina and the cornea-eye lens can be estimated to be -
Answer» for a normal eye the cornea of eye provides a converging power of 40D and the least converging power of eye lens behind the cornea is 20D. using the information , the distance between the retina and the cornea-eye lens can be estimated to be -