Posterior chamber of eyeball

Posterior chamber of the eyeball
Anterior part of the human eye, with label of posterior chamber at right.
Schematic diagram of the human eye (posterior chamber labeled at upper left)
Details
Identifiers
Latin	camera posterior bulbi oculi
TA98	A15.2.06.005 A15.2.06.001
TA2	6794
FMA	58080
Anatomical terminology [edit on Wikidata]

The posterior chamber is a narrow space behind the peripheral part of the iris, and in front of the suspensory ligament of the lens and the ciliary processes. The posterior chamber consists of small space directly posterior to the iris but anterior to the lens. The posterior chamber is part of the anterior segment^[1] and should not be confused with the vitreous chamber (in the posterior segment).

Posterior chamber is an important structure involved in production and circulation of aqueous humor. Aqueous humor produced by the epithelium of the ciliary body is secreted into the posterior chamber, from which it flows through the pupil to enter the anterior chamber.^[2]

The hypermature cataractous lens^[3] or, the intraocular lens^[4] implanted after cataract surgery may obstruct the aqueous flow through the pupil. The block in flow of aqueous from the posterior to the anterior chamber will lead to a condition known as Iris bombe. In this condition, pressure in the posterior chamber rises, resulting in anterior bowing of the peripheral iris and obstruction of the trabecular meshwork. This may result in an acute attack of angle closure glaucoma.^[5] Surgical management of Glaucoma due to Iris bombe include making a small hole in the iris which allows passage of aqueous from posterior chamber to anterior chamber either by YAG or Argon laser iridotomy ^[6] or by manual iridectomy.^[7]

Additional images

• 
  The upper half of a sagittal section through the front of the eyeball (posterior chamber of eye labeled at center right)

See also

• Anterior chamber
• Aqueous humour
• Cataract surgery
• Posterior chamber intraocular lens

References

This article incorporates text in the public domain from page 1012 of the 20th edition of Gray's Anatomy (1918)

External links

• Anatomy figure: 29:05-11 at Human Anatomy Online, SUNY Downstate Medical Center
• Atlas image: eye_2 at the University of Michigan Health System - "Sagittal Section Through the Eyeball"

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Anatomy of the globe of the human eye

Fibrous tunic
(outer)

Sclera	Episcleral layer Schlemm's canal Trabecular meshwork
Cornea	Limbus layers Epithelium Bowman's Stroma Dua's layer Descemet's Endothelium

Uvea / vascular
tunic (middle)

Choroid	Capillary lamina of choroid Bruch's membrane Sattler's layer
Ciliary body	Ciliary processes Ciliary muscle Pars plicata Pars plana
Iris	Stroma Pupil Iris dilator muscle Iris sphincter muscle

Retina (inner)

Layers	Inner limiting membrane Nerve fiber layer Ganglion cell layer Inner plexiform layer Inner nuclear layer Outer plexiform layer Outer nuclear layer External limiting membrane Layer of rods and cones Retinal pigment epithelium
Cells	Photoreceptor cells (Cone cell, Rod cell) → (Horizontal cell) → Bipolar cell → (Amacrine cell) → Retina ganglion cell (Midget cell, Parasol cell, Bistratified cell, Giant retina ganglion cells, Photosensitive ganglion cell) → Diencephalon: P cell, M cell, K cell, Muller glia
Other	Macula Perifoveal area Parafoveal area Fovea Foveal avascular zone Foveola Optic disc Optic cup Ora serrata

Anatomical regions
of the eye

Anterior segment	Adnexa (Eyebrow, Eyelid, Conjunctiva, Lacrimal system, Orbit) Fibrous tunic Anterior chamber Aqueous humour Iris Posterior chamber Ciliary body Lens Capsule of lens Zonule of Zinn
Posterior segment	Vitreous chamber Vitreous body Retina Choroid

Other

• Keratocytes
• Ocular immune system
• Optical coherence tomography
• Eye care professional
• Eye disease
• Refractive error
• Accommodation
• Physiological Optics
• Visual perception

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