Medicine:Anterior segment of eyeball

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Short description: Front third of the eye
Anterior segment of eyeball
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
Details
Identifiers
Latinsegmentum anterius bulbi oculi
Anatomical terminology

Template:Diagram of anterior segment of a human eye section The anterior segment or anterior cavity[1] is the front third of the eye that includes the structures in front of the vitreous humour: the cornea, iris, ciliary body, and lens.[2][3][4]

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.[2]

Aqueous humour fills these spaces within the anterior segment and provides nutrients to the surrounding structures.

Some ophthalmologists and optometrists specialize in the treatment and management of anterior segment disorders and diseases.[3]

See also

References

  1. ↑ "Medical gallery of Blausen Medical 2014". WikiJournal of Medicine 1 (2). 29 August 2014. doi:10.15347/WJM/2014.010. https://en.wikiversity.org/wiki/WikiJournal_of_Medicine/Medical_gallery_of_Blausen_Medical_2014. 
  2. ↑ 2.0 2.1 Cassin, B. and Solomon, S. Dictionary of Eye Terminology. Gainesville, Florida: Triad Publishing Company, 1990.
  3. ↑ 3.0 3.1 "Departments. Anterior segment." Cantabrian Institute of Ophthalmology.
  4. ↑ Fraser, AS; Ang, M; Bellchambers, A; Chu, CJ; Denniston, AK; Downie, LE; Evans, T; Hau, S et al. (14 August 2025). "Proposed Nomenclature for Landmarks in Anterior-Segment OCT: The APOSTEL-AS Panel Consensus.". JAMA Ophthalmology 143 (9): 749–757. doi:10.1001/jamaophthalmol.2025.2414. PMID 40810988. 




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