Question

What do you mean by retina ?

Answer 1

HEY USER,
___________________________________

What do you mean by Retina?

▶It is a spherical structure of about 2.5 cm and the light sensitive screen of the eye on which the images are displayed.

▶It contains the rod shaped cells which respond to the amount of brightness and are generally active in dim light conditions.

▶It also has cone shaped cells which normally respond to the different colours of the light and are active in bright light conditions.

___________________________________
Hope it helps.
Thanks for the question.

Answer 2

retina is the light sensitive surface of eye on which the image is formed. it contains light sensitive cells rods and cones. rod cells respond to the intensity of the light and cone cells respond to the illumination. they are number is around 125 million. number of rod cells is greater than number of cone cells. these cells generate signals which are transmitted to the Brain through optic nerves.