Anatomy Of The Human Eye

Eye Anatomy

Anatomy of the human eye includes cornea, conjunctiva, (iris, choroid &), lens, blood supply, retina, vitreous & optic-nerve. For ophthalmologists, optometrists, medical, dental, and optometry students, eye-anatomy forms the basis for eye-pathology in diseases: dry eye, retinal detachment, macular degeneration, diabetic retinopathy.

Consists of the eye (eye ball) of the three layers are from abroad:
Solid: -
The outer layer of the eye, consisting of connective tissue strong and non-transparent to protect the eye - hard, but do not absorb light, reflecting white - most of the damage to the hatred of a solid eye only the front part of which is the transparent cornea.

- Choroid:
Layer that lies between the solid eye and retina - and anatomy of the human eye, we find that human chorionic contain a rich network of blood vessels, and the basic function is to support the retina and provide food and oxygen for them. Placenta covering two thirds of the eye ball only the part of the back.

-Retina:
Inner layer of the eye, and cover two-thirds of the hatred of the eye from the back of the inside - and anatomy of the human eye, we find that the retina is the layer that contains the receptor optical receiving and responsible for vision - where he is receiving light from itself and converted to electrical signals transmitted through the fiber neurological, visual and accumulated in the optical disk optical disk, or also called the spot blind (where the optical disk does not contain photoreceptors) to form the optic nerve - The network includes the flick which is a spot concave in the retina contain large amounts of receptors light and the use of eye Looks sharp - that the eye is a ring of light on this spot.

Components of the eye and parts thereof:
- Vitreous body:
Glass-filled eye ball - means transparent gelatinous - relates to forward is to muscle in the form of the lens so that if decreased less curvature of the lens, and if it is represented by the Deputy of the curvature of the lens, and focus the process of light on the retina of the eyes after relying on the body of the eye.

-Iris:
Before the lens of the eye are the iris - which gives the eye color - and anatomy of the human eye, we find that the human iris is made up of circular muscles and radial muscles - in the center hole called the pupil (iris) - circular muscles narrows the pupil and the pupil radial expansion eye by the amount of light - in the dark pupil expands to allow for a larger amount of light entering the eye to facilitate the vision .

- Cornea:
After the iris and in front of the eye are the cornea - the transparent and does not contain blood vessels, where they take what they need oxygen directly from air and food through the nomination of mixing water, a solution that fills the front room and back room.

- Front front - and the back room:
The front room is a space located between the cornea and iris - and the back room is the space located between the lens and iris - fills the aqueous humor of these two chambers which is located in the angle between the cornea and iris in the front room - the aqueous humor is responsible for eye pressure, if the pool and could not go out for some reason can lead to hypertension and eye disease known as blue water

Muscles that move the eye are: -
1 - straight brutal muscle (lateral) Lateral Rectus Muscle of the eye damage is outside any consideration to the external (by eye).
2 - straight muscle humanism (internal) Medial Rectus Muscle damage the eye to look towards the inside of the nose.
3 - straight muscle upper Superior Rectus Muscle damage the eye to look up and inside.
4 - straight lower muscle Inferior Rectus Muscle damage the eye to look down and inside.
5, - muscle, oblique upper Superior Oblique Muscle damage an eye to look down and out.
6 - lower muscle oblique Inferior Oblique Muscle damage the eye to look up and out.

We know from anatomy of the human eye, which consists of the human eye