The part of the eyeball that picks up light rays and transmits them to the brain.

The pigmented part of the eye:

The clear part of the eye that covers the iris:

the opening in the middle of the iris:

The medical term for a stye

The medical term for cross-eyed:

The aqueous humor is secreted by the

Which of the following is the commonest cause for decrease in vision in the general population ?

The condition where there is excessive production of tears is known as