The blind spot in the eye is located at .....

The hollow of the eye is divided into the aqueous chamber and the vitreous chamber by:

In mammals,which cells are responsible for colour detection in the retina?

The iris of an eye is an extension of which layer?

The function of the iris in the eyes of a frog is to

The following figure is a diagram showing parts of the human eye. Identify $P, Q$,and $R$ from the options given below.
$\quad\quad P\quad\quad\quad Q\quad\quad\quad R$