Question

What is the function of crystalline lens

Answer 1

$\bold{Answer}$

$\boxed{\textbf{Parts of an eye}}$

● Cornea - It is a transparent and curved memberane that covers the front part of precious eye.
This portion of the eye is visible from outside.

● Crystalline lens - the eye lens is a biconvex lens made of a transparent, soft and flexible material like a jelly made up of protiens.It is hard in the middle and gradually becomes soft towards the outer surface.
The lens is kept in position by greatly elastic ligaments commonly known as suspensory ligaments.

It handles the focal length and curvature by changing its size and diameter.

● Iris - It is a dark mascular diagphragm that is situated behind the cornea. It controls the size of the pupil.

It is the colour of iris that we call the colour of a peroson's eye.
The colour of eye depends upon the different pigments and protiens present in it.

● Pupil - a small hole between the iris through which light enters the eye is termed as pupil of the eye.
It usually appears black because of light falling on it.

● Ciliary Muscles - they are responsible for holding the lens in the functioning position and it also helps in modifying the curvature of the crystalline lens.

● Retina - The part where the image is formed.
It covers the inside of the rear part of the eyeball.

Answer 2

Answer:

The lens or crystalline lens is a transparent, biconvex structure in the eye that, along with the cornea, helps to refract light to focus on the retina. Its function is thus similar to a man-made optical lens.