STRUCTURE of Far Sightedness ( Hyperopia) :
It is the clear surface of the eye which allows the light to pass through it and it directly covers the iris and pupil providing a layer of protection.
It is located behind the iris and it is the part of the eye which aids in focus. The lens can change the shape to alter the focal distance of the eye and focuses the light rays that pass through the retina at a right angle. In aged peoples protein gets buildup in the lens giving rise to cataract. In the treatment of cataract the physician might removes the lens and replaces it with new one.
It is a watery fluid that the eyes constantly produces in order to maintain the good pressure in the eye and lso the aqueous humour might provides the nutrient supply to the cornea.
The ciliary muscle actually changes the shape of the lens and make them focus properly. It maintains the lens in the coorect position in the eye’s middle layer and regulates the flow of aqueous humour within the eye.
The extraocular muscles include medial rectus, lateral rectus, superior oblique, inferior oblique, superior rectus and inferior rectus. The medial rectus is the largest of the all the six extraocular muscles. It makes the pupil to be in the median state that is towards the nose and it make sure that the eyes are aligned correctly. If there are any problems with the medial rectus it can lead to the strabismus.
Lateral rectus muscle:
It helps in the lateral movement of the eyes. If there is any problem with this muscle one might experience estropia.
It is present at the back of the eyes. The main function of the retina is to collect the information from the lens and send it to the brain for visualization. There are 2 photoreceptors on the retina A) Rods B) Cones. Rod are responsible for the dark and light, picking up on motion and cones are responsible for the colour vision. Problems within the retina results in loss of vision.
It is pigmented muscular layer which is present between the cornea and lens and it controls the amount of light entering the eye.
It is termed as the white structure of the eyes and it supports the eyeball and cornea.
This is a major blood vessel which sits between the retina and the sclera at the back of the eye. It nourishes the outer layers of the retina and keeps the eye at the right temperature. It also provides the right amount of oxygen and blood flow to the retina, helping the eye to function well.
It is the center part of the retina . macular regeneration might result in loss of vision.
The optic nerve is the mediator friendly which transmit the signals from the retina to the brain. It consists of million of nerve fibers and it is considered as the part of the central
nervous system. Glaucoma might cause severe damage to the optic nerve
The vitreous humour is a liquid in your eye with the consistency of gel, and sits behind your lens but in front of your retina. If any substances enter the vitreous humour, they are referred to as floaters.