Question

help me, please, please

Answer 1

Cornea :- Is the outermost layer of eyeball

Iris :- is the muscle which gets dialated and constricted to maintains the entry of light in eye

Vitrous humour :- is the liquid which is present just after cornea.

Optic nerve ;- is the nerve which transmits the information related to image.

Cilary muscle :- is the muscle which pull and lose the eye lens

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Answer 2

Answer:

hey mate your answer is here......

Functions of Cornea :

1. It provides the most of the fixed converging power of eye. It has a converging power of around 43 diopters.

2. It provides a transparent covering to hold the aqueous humour, iris etc.

function of iris :-

The iris separates the anterior and posterior chambers of the eyeball. The iris, by contraction and dilatation, regulates the entrance of light into the eye. The iris controls the size of the pupil. For spherical refracting lenses, like the one in your eye rays that are further from the optical center are bent more than those closer to the center. The result is that when the image is formed on the retina, it may be slightly out of focus. The iris reduces the number of these rays by forming a barrier over the parts of the lens in the eye which might cause this, and thus producing a more sharply focussed image on the retina.

function of vitreous humor:-

It maintains shape of the eye.

It maintains internal pressure that prevents eyeball from collapsing.

It keeps retina in place by pressing it against choroid.

function of optic nerves:-

Optic nerve is the nerve that connects the eye to brain , more likely it acts like a cable connecting the eye with the brain.

function of cillary muscles:-

The ciliary muscles adjust the shape of the lenses in order to focus the eyes.

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