The Human Eye:

The human eye is an organ that reacts with light and allows light perception, colour vision, and depth perception. The human eye is the gateway to one of our five senses. The human eye is an organ that reacts with light. It allows light perception, colour vision and depth perception. A normal human eye can see about 10 million different colours! There are many parts of a human eye, and that is what we are going to cover in this atom.

Parts of the human eye:

Contrary to what you might think, the human eye is not a perfect sphere but is made up of two differently shaped pieces, the cornea and the sclera. These two parts are connected by a ring called the limbus. The part of the eye that is seen is the iris, which is the colourful part of the eye. In the middle of the iris is the pupil, the black dot that changes size. The cornea covers these elements but is transparent. The fundus is on the opposite of the pupil, but inside the eye and can not be seen without special instruments. The optic nerve is what conveys the signals of the eye to the brain. is a diagram of the eye. The human eye is made up of three coats:

• Outermost layer – composed of the cornea and the sclera.
• Middle Layer – composed of the choroid, ciliary body, and iris.
• Innermost Layer – the retina, which can be seen with an instrument called the ophthalmoscope.

Once you are inside these three layers, there is the aqueous humour (the clear fluid that is contained in the anterior chamber and posterior chamber), vitreous body (clear jelly that is much bigger than the aqueous humour), and the flexible lens. The pupil connects all of these.