Structure Of Eye Essay

The structure of the eye contains several complex structures that make the eye like so of a camera. Without using complex equipment to view all parts of the eye or dissecting it, one can see three structures of the eye: the sclera, the iris, and the pupil. The white part of the eye is known as the sclera which is the outer most part, that helps the eye maintain its shape and protects the eye from injury. The black dot one can see in the middle of the iris is known as the pupil. The pupil is in charge of letting light into the eye. Therefore if the eye needs more light to see the pupil will allow more light to come in and if less light is needed the pupil will only allow a certain portion of light to come in. The colored part of the eye that people are most attracted to is known as the …show more content…
The first structure is known as the cornea is a clear membrane that covers the front of the entire eye. The cornea plays a major role of keeping objects in focus for the eye to take in. The second structure is known as the lens which is a transparent membrane that is Simi-flexible which focuses the image onto the retinal layer. Both of these structures play a role on bending light that falls on the surface of the eye to focus it to the back of the eye. There is a structure at the back of the eye that portrays as they film of the camera known as the retina. The retina is a light sensitive multilayered surface. It is in charge of recording electromagnetic energy and converting it to neural impulses for the brain to process. The eye also contains structures called the optic nerve and they blind spot. The optic nerve is located at the back of the eye and is in charge of carrying visual information to the brain so it can be further processed, such as when you snap a picture before it is printed out. The blind spot located on the retina where we cannot see anything that reaches this