Posterior chamber of eyeball
Camera posterior bulbi oculi
- Related terms: Posterior chamber
Definition
The posterior chamber of eyeball is a narrow, fluid-filled space within the anterior segment of the eye.
Boundaries
Anteriorly: Posterior surface of the iris.
Posteriorly: Anterior surface of the lens and zonular fibers (suspensory ligaments).
Posteriorly and laterally: Ciliary body
Communication
Posterior chamber communicates with the anterior chamber through the pupil.
Circulation of aqueous humor
The posterior chamber of eyeball is filled with aqueous humor, a clear fluid produced by the ciliary processes.
The fluid passes through the pupil into the anterior chamber
Drains via the trabecular meshwork into the canal of Schlemm
References
Standring, S. (Ed.). (2015). Eye (Chapter 42). In Gray's anatomy: The anatomical basis of clinical practice (41st ed., pp. ). Churchill Livingstone.
Sierzenski, P. (2006) Ocular scanning protocol, in Emergency Ultrasound. St. Louis: Mosby, pp. 211218. doi:10.1016/B9780323037501.500142.
Sunderland DK, Sapra A. Physiology, Aqueous Humor Circulation. [Updated 2023 Mar 12]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan. Available from: https://www.ncbi.nlm.nih.gov/books/NBK553209/
