functions of eyes part
Answers
hope you get it ✌️
please mark it as brainliest ❤️
1. Tear Layer
The Tear Layer (The Lacrimal System) is the first layer of the eye that light strikes. It is clear, moist, and salty. Its purpose is to keep the eye smooth and moist.
2. Cornea
The Cornea is the second structure that light strikes. It is the clear, transparent front part of the eye that covers the iris, pupil and anterior chamber and provides most of an eye’s optical power.
3.IRIS
The iris is the pigmented tissue lying behind the cornea that gives color to the eye and controls the amount of light entering the eye by varying the size of the papillary opening. It functions like a camera.
4.LENS
The lens is the natural lens of the eye (chrystaline lens). Transparent, biconvex intraocular tissue that helps bring rays of light to focus on the retina.
5. Vitreous Humour (Chamber)
Vitreous Humour (Chamber) is the transparent, colorless gelatinous mass that fills rear two-thirds of the eyeball, between the lens and the retina. It has to be clear so light can pass through it and it has to be there or eye would collapse.
6. Retina
It Eye’s optical system into electrical impulses that are sent along the optic nerve to the brain, to interpret as vision. Forms a thin membranous lining of the rear two-thirds of the globe; consists of layers that include two types of cells: rods and cones. There is no retina over the optic nerve which causes a blind spot (This is the sightless area within the visual field of a normal eye
7.OPTIC NERVE
The Optic Nerve is the largest sensory nerve of the eye. It carries impulses for sight from the retina to the brain. Composed of retinal nerve fivers that exit the eyeball through the optic disc, traverse the orbit, pass through the optic foramen into the cranial cavity, where they meet fibers from the other optic nerve at the optic chiasm.
HOPE IT HELPS
❤❤✌✌✌