State whether the following statement is true or false: The image formed on our retina is upside-down

Name two types of cells in the retina of an eye which respond to light.

Out of rods and cones in the retina of your eye:

(a) which detect color?

(b) which work in dim light?

What is the principal function of the eye-lens?

Where does the greatest degree of refraction of light occur in the eye?