What is eye anatomy called?
Articles On Eye Basics Cornea: a clear dome over the iris. Pupil: the black circular opening in the iris that lets light in. Sclera: the white of your eye. Conjunctiva: a thin layer of tissue that covers the entire front of your eye, except for the cornea.
What are the 15 parts of the eye?
Parts of the Eye. Here I will briefly describe various parts of the eye:
What is the anatomy of vision?
The eye isn’t a single structure, but composed of many parts, including the retina, cornea, and sclera. The retina is a layer of nervous tissue in the interior of the eye, continuing into the cranium as the optic nerve. The white of the eye is the sclera, and the transparent part of the eye is the cornea.
What are the 3 layers of the eye?
Topic Overview
- The outer layer of the eyeball is a tough, white, opaque membrane called the sclera (the white of the eye).
- The middle layer is the choroid.
- The inner layer is the retina, which lines the back two-thirds of the eyeball.
What is optic nerve?
(OP-tik nerv) The nerve that carries messages from the retina to the brain. Enlarge. Anatomy of the eye, showing the outside and inside of the eye including the eyelid, pupil, sclera, iris, cornea, lens, ciliary body, retina, choroid, vitreous humor, and optic nerve.
What is the function of retina?
The retina plays a vital role in your vision. It’s a thin tissue that lines the inner surface of the back of the eye. Your retina contains light-sensitive cells that receive information and send it to the brain through the optic nerve, which enables you to see.
What is the function of iris?
The iris controls the amount of light that enters the eye by opening and closing the pupil. The iris uses muscles to change the size of the pupil. These muscles can control the amount of light entering the eye by making the pupil larger (dilated) or smaller (constricted).
What is the shape of retina?
However, one study indicates that the retina itself, while showing the same trend, remains oblate in shape for most eyes (discounting high myopia).
What is corneal arcus?
Arcus senilis is a gray or white arc visible above and below the outer part of the cornea — the clear, domelike covering over the front of the eye. Eventually, the arc may become a complete ring around the colored portion (iris) of your eye. Arcus senilis is common in older adults.