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Anterior segment
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.
Latin	segmentum anterius bulbi oculi
Dorlands/Elsevier	s_07/13264628

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.

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

References

See also

• List of eye diseases and disorders
• Posterior segment

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