How the human eye works, explain step by step.
Answers
The eye captures and focuses light like a camera. Here is a step-by-step explanation of how the eye works to provide you with vision:
Light enters the eye through the cornea (the clear, dome-shaped surface that covers the front of the eye).
From the cornea, the light passes through the pupil. The amount of light passing through is regulated by the iris, or the colored part of your eye.
From there, the light then hits the lens, the transparent structure inside the eye, which focuses light rays onto the retina.
Finally, it reaches the retina, the light-sensitive nerve layer that lines the back of the eye, where the image appears inverted.
The optic nerve carries signals of light, dark, and colors to the area of the brain (the visual cortex), which assembles the signals into images (our vision).
With normal vision, the cornea and the lens focus light directly onto the retina. Light rays entering the eye are focused sharply on the retina and the image you see is clear.
When any light passes through the eye first it reaches the cornea then into the pupil. This pupil is called the eyes window into the world and is surrounded by iris which is a coloured ring. From there it goes into the crystalline lens and come to rest in the retina. This helps in giving a clear vision. After that a signal will be passed to the brain to interpret what the picture is and formats the picture.