How Does Glaucoma Occur?

The eyeball contains a fluid called "aqueous humor". It is produced by the Cilliary body and it circulates inside the eye carrying nutrients to various parts of the eye. This fluid then leaves the eye through channels and it's flow is thus well controlled.

• Too much fluid production
• Obstruction in drainage channels
• Congenital anomaly
• Defect in anatomy

Since the eye cannot expand to accommodate the extra fluid, just like a balloon filled with water, the pressure inside begins to rise and the sensitive inner surface of the eye is slowly squeezed cutting off the blood supply to the optic nerve.