Aqueous humour

 Aqueous humour:

• It is a clear fluid.
• It fills the space between cornea in front and lens behind - anterior segment.
• This space is divided by iris into 

1. Anterior chamber

2. Posterior chamber

• Both compartments freely communicate with each other through pupil.

Aqueous humour

• It is secreted into the posterior chamber from the capillaries in the ciliary process
• It passes into the anterior chamber through the pupil
• From the anterior chamber, it is drained into the anterior cilia veins through 

1. the spaces of iridocorneal angle or angle of anterior chamber (Located between the fibres of ligament pectinatum.)

2. Canal of Schlemm.

• Interference with the drainage of aqueous humour into canal of Schlemm results in an increase in an increase in intraocular pressure, results in glaucoma 
• This produces cupping of optic disc and pressure atrophy of retina causing blindness.
• The intraocular pressure is chiefly due to aqueous humour.
• It maintains the constancy of the optical dimensions of the eyeball
• The aqueous is rich in ascorbic acid, glucose and amino acids.
• It nourishes the avascular tissues of cornea and lens

Clinical Anatomy:

• Over production of aqueous humour or lack of drainage or combination of both raise the intraocular pressure 
• It must be treated urgently.

Watch lectures on YouTube :

The Refractive Media of the Eye | Cornea | Aqueous Humour | Lens | Vitreous Humour