Our eyes, with over 100 million light-sensitive cells and some of the fastest muscles in the body, are able to pick up everything from starlight traveling across galaxies to the full range of human emotions. I can.
However, by connecting to our minds through the approximately 1 million nerve fibers that connect each eye to our brains, we are able to synthesize smooth vision that is not distracting or overwhelming, acquire the ability to interpret what is happening around you.
important parts of the human eye
pupil
It looks like a black dot, but it’s actually a gap that allows light to pass through to the back of your eye.
cornea
The cornea, the transparent dome in front of the eye, refracts light and helps direct it along the correct path to the retina.
iris
The colored part of the eye that dilates or constricts the pupil to control how much light enters. The iris is part of a larger structure that forms a layer between the retina and the sclera.
lens
A transparent lens that changes shape to focus incoming light onto the retina.
retina
Although it is often thought of as the back of the eye, it is more accurately the innermost layer that receives light that is reversed by the lens. The retina is packed with light-sensitive cells and nerve cells.
sclera
The sclera, also known as the white of the eye, is a tough, protective outer layer made of collagen fibers.
vitreous body
A transparent jelly that fills the eyeballs. As we age, the consistency of this jelly becomes more liquid and gradually becomes less wobbly.
optic nerve
A thick bundle of nerve fibers that carries signals between each eye and the brain.
How do we see it?
The simplest explanation is that what we see is the result of light entering the eye through the cornea and lens, which directs and focuses the light onto the light-sensitive cells (rods and cones) in the retina. about it.
Source: www.sciencefocus.com
