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parts of the eye






optic nerve

Ciliary muscle



Transparent membrane in the form of a convex disk, which constitutes the anterior part of the eyeball and is located in front of the iris.

Colored tissue in the front of the eye that contains the pupil at its center. The iris helps control the size of the pupil to allow more or less light to enter the eye.

The optic nerve brings together more than a million nerve fibers that carry visual messages. This connects the back of each eye (your retina) to the brain. Damage to the optic nerve can cause vision loss. The type of vision loss and its severity depend on where the damage occurs.

The retina is a layer of tissue at the back of the eye that senses light and sends images to the brain. At the center of this nerve tissue is the macula. It provides the ability to focus centrally and the acuity needed to read, drive and see details clearly

the part of the eye that connects the iris to the choroid. It consists of the ciliary muscle (which alters the curvature of the lens), a series of radial ciliary process (from which the lens is suspended by ligaments), and the ciliary ring (which adjoins the choroid).

the white outer layer of the eyeball. At the front of the eye it is continuous with the cornea.

a small depression in the retina of the eye where visual acuity is highest. The centre of the field of vision is focused in this region, where retinal cones are particularly concentrated.