Anterior segment

From Wikipedia, the free encyclopedia

Human Eye Anterior Segment - Magnified view seen on examination with a slit lamp under diffuse illumination showing conjunctiva overlying the white sclera, transparent cornea, pharmacologically dilated pupil and cataract

Schematic diagram of the human eye.

The anterior segment is the front third of the eye that includes the structures in front of the vitreous humour: the cornea, iris, ciliary body, and lens.^[1] ^[2]

Within the anterior segment are two fluid-filled spaces:

the anterior chamber between the posterior surface of the cornea (i.e. the corneal endothelium) and the iris.
the posterior chamber between the iris and the front face of the vitreous.^[1]

Aqueous humor fills these spaces within the anterior segment and provides nutrients to the surrounding structures.^[3]

Some ophthalmologists specialize in the treatment and management of anterior segment disorders and diseases.^[2]

[edit] References

^ ^a ^b Cassin, B. and Solomon, S. Dictionary of Eye Terminology. Gainsville, Florida: Triad Publishing Company, 1990.
^ ^a ^b "Departments. Anterior segment." Cantabrian Institute of Ophthalmology.
^ Miguel Coca-Prados, Ph.D.