External Anatomy Of The Eye

It is the most visible part of the eye. The outer margin of the cornea.

External Eye Eye Drawing Tutorials Eye Anatomy Realistic

The human eye ball is spherical in structure and is about 24 mm in a diameter.

External anatomy of the eye. Component of the lacrimal apparatus tears enter thru lacrimal punctum. The episclera is covered by the conjunctiva a vascular mucous membrane. The eye is surrounded by the orbital bones and is cushioned by pads of fat within the orbital socket.

The lens then changes shape to allow the accurate focusing of light on the retina. Anatomy of the eye. The diaphragm that controls the amount of light entering the eye.

It has two layers a posterior pigment epithelium and an anterior stroma made of collagen muscle and pigment cells. The outer fibrous or sclera 2. Squinting which is closing the eye partially sheilds the eye from excessive light that can damage the internal structure such as the retina.

The iris is the colored part of the eye that controls the amount of light that enters into the eye. Overview the cornea allows light to enter the eye. The structure of the human eye is made of three layers.

It lies in front of the crystalline lens and separates the anterior chamber from the posterior chamber. Nerve signals that contain visual information are transmitted through the optic nerve to the brain. Human eye parts 1.

Extraocular muscles help move the eye in different directions. It is the most visible part of the eye. Malfunction in any part of the system can cause serious complications.

As light passes through the eye the iris changes shape by expanding and letting more light through or constricting and letting less light through to change pupil size. Blinking on the other hand which is closing and opening the eye rapidly spreads tears across and and removes irritants from the cornea and conjuctiva. Component of the lacrimal apparatus located superior and lateral to each eye.

Lacrimal system tear drainage system the lacrimal system is crucial for tear production and management which includes distribution of tears and draining excess tears.

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