In which part of the sclera blood capillaries are absent?

The spot where no image is formed is known as the blind spot because it has:

Differentiate between rod cells and cone cells.

The anterior portion of the sclera is called:

The figure shows parts of the human eye labeled as $A, B, C$ and $D$. Select the option which correctly identifies the labeled part with its function and characteristics.

In humans,presbyopia is an eye defect that occurs with aging,in which ....