Question

labelled diagram of human eye and it's working and structure

Answer 1

Hey mate

Here's your $\huge\mathfrak\pink{anSwer}$

It is spherical in shape with a slight budge in the front.

1. $\huge\bold{Cornea}$
It is transparent front bulging part of the eye. It's function is to acts as a window and hence allow the light to enter in the eye ball.

2. $\huge\bold{Iris}$
It has a tiny hole in the middle and is commonly called pupil. It has an arrangement of tiny muscles. These muscles increase and decrease the size of the pupil. The function of the iris is to control the amount of light entering the eye . Iris contains a type of pigment which is the cause of distinctive colours of the eye.

3.$\huge\bold{Lense}$
Lens is situated behind the pupil and is thicker in nature. Lens focuses light on the back of the eye , on a layer called retina.

4.$\huge\bold{Retina}$
It is the layer at the back on which image formation takes place. The function of the retina is to receive the optical image of the object and then to convert it into electrical signal which is further sent to brain.

$\huge\bold{Blind\:spot}$
It is a region on the retina when the optic nerve enters the eye ball . It has no rods or cones and hence it is insensitive to light. No image is formed here.

6.$\huge\bold{Eye\:lid}$
Each eyes has two eye lids.They prevent dust from entering into the eyes.

7.$\huge\bold{Optic\: Nerve}$
It is a bundle of many nerves connecting brain to the eyeball. It carries optical messages to the brain..

Hope it helps uh