Aqueous compartments Flashcards
Major structure separating anterior and posterior chamber?
iris
Clear fluid that pressurizes the eye.
Provides nutrients to avascular structures
Aqueous humor
Posterior chamber boundaries
central: capsule of crystalline lens
Posterior: anterior hyaloid face of vitreous body
Peripheral: non pigmented ciliary epithelium of ciliary body
ANterior: posterior pigment layer of iris
-aqueous does not pass through iris due to tight junctions between posterior pigment epithelium of iris
Volume of posterior chamber?
50- 65 ul
3 sub compartments of posterior chamber
retro zonular
zonular
pre-zonular
Anterior chamber boundaries
Posterior (central): pupil and capsule of crystalline lens
Posterior (peripheral): anterior border layer of Iris
ANterior: corneal endothelium
Peripheral: iridocorneal angle
Angle formed in the periphery of the anterior chamber by the fusing of the uveal tunic and fibrous tunic.
Iridocorneal angle
What are the structures in the iridocorneal angle? (from inferior to superior)
Iris root Ciliary body band Scleral spur Trabecular meshwork Schwalbe's line
Aqueous humor secreted at rate of _______ ul per minute
Volume of aqueous compartment turned over every _______ minutes
2.5
100
Anterior chamber volume?
200-250 ul
This is the thinnest part of Iris, inserts into the anterior face of the ciliary body. Susceptible to traumatic injury.
Iris Root
No epithelium lining of ciliary body. Why is this important?
No barrier, another path for aqueous humor passing
Internal projection of the sclera. Provides attachment for longitudinal bundle of ciliary muscle
Scleral spur
Sits within the internal scleral sulcus above the scleral spur. Filtration apparatus that provides the main resistance to keep the eye presurized.
Trabecular meshwork… Gatekeeper to schlems canal
Peripheral termination of descemet’s membrane.
Schwalbe’s line
