What is the function of selera in eye?

There is no part of the eye called the "selera". The correct term is "sclera".

The sclera is the white, tough, outer layer of the eyeball that protects the inner structures of the eye. It is made up of dense connective tissue and contains collagen and elastin fibers, which give it its strength and flexibility.

The sclera has several functions:

* It protects the inner structures of the eye, such as the retina, lens, and vitreous humour, from external trauma and infection.

* It helps to maintain the shape and size of the eyeball.

* It provides attachment points for the eye muscles, which control the movement of the eye.

* It contains blood vessels that supply oxygen and nutrients to the eye.

The sclera is a vital part of the eye and plays an important role in maintaining its health and function.