describe the human eye with a diagram
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Answer:
The Human Eye: A Diagram. The clear outer part of the eye's focusing system located at the front of the eye. The center of the macula; gives the sharpest vision. The colored part of the eye that regulates the amount of light entering the eye.
The human eye is an organ that reacts to light and allows vision. Rod and cone cells in the retina allow conscious light perception and vision including colour differentiation and the perception of depth.
Its job is to convert images into electronic signals and send them to the optic nerve. The optic nerve then transmits these signals to the visual cortex of the brain which creates our sense of sight.
The outer covering of the eyeball consists of a relatively tough, white layer called the sclera (or white of the eye). Near the front of the eye, in the area protected by the eyelids, the sclera is covered by a thin, transparent membrane (conjunctiva), which runs to the edge of the cornea.
It is made of water, jelly, and protein. The eyeball consists of these parts: Sclera. The sclera is often referred to as the "whites of your eyes," the tough white tissue that covers most of your eyeball.
The front part of the eye is filled with a clear fluid called intraocular fluid or aqueous humour, made by the ciliary body. The fluid flows out through the pupil. It is then absorbed into the bloodstream through the eye's drainage system.
Iris is the part of the eye that is coloured.
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