AQUEOUS HUMOR

Aqueous humour is present between the

• Lens and Retina

• Iris and Lens

• Lens and Cornea

• Lens and Cornea

Compared to plasma, aqueous humor has which of he following characteristics??

• Increased protein

• Increased glucose

• Decreased lactate

• Increased ascorbate

Vitamin present in aqueous humor is??

• Vitamin A

• Vitamin B

• Vitamin C

• Vitamin D

Which of the following structure is not involved in the flow of aqueous humor??

• Vitreous cavity

• Schlemm's canal

• Anterior chamber

• Posterior chamber

• Episcleral veins

The site of greatest resistance to aqueous outflow is the :

• Uveal meshwork

• Corneoscleral meshwork

• Anterior Non pigmented trabecular Meshwork

• Posterior Pigemented Trabecular Meshwork

• Juxtacanalicular Trabecular Meshwork

Aqueous humor differs from CSF in that the former,

• Has protein content similar to Plasma

• Is an Ultrafiltrate of Plasma

• Serves no important nutritive function

• Contains a higher concentration of ascorbic acid

All are true regarding Aqueous humor except??

• It is a transudate secretion from the ciliary process

• It flows from posterior to anterior chamber through the Canal of Schlemm

• Obstruction to flow and drainage of aqueous humor results in a rise of intraocular pressure

• It nourishes the cornea ans the lens and maintains the optical shape of the eyelid

The production of aqueous humor follows which of the following order??

• Ultrafiltration > Secretion > Diffusion

• Secretion > Ultrafiltration > Diffusion

• Diffusion > Ultrafiltration > Secretion

• Diffusion > Secretion > Ultrafiltration

• Secretion > Diffusion > Ulrafiltration

Order of angle structures from Central to Peripheral

SL - Schwalbe's line

TM - Trabecular Meshwork

SS- Scleral Spur

CBB - Ciliary Body Band

• SL TM SS CBB

• SL TM CBB SS

• CBB SS TM SL

• SS CBB TM SL

• SL SS TM CBB

True regarding Schlems Canal

• Drains into Episcleral vessels

• Least contribution to outflow resistance of the aqueous humor.

• Collects Aqueous humor from Posterior chamber

• Not lined with Endothelium