Glaucoma

Eye Pressure

The pressure in the eye is determined by the balance of the fluid (called aqueous humor) coming into the eye and the fluid leaving the eye by the normal drainage channels (called the trabecular meshwork). The aqueous humor is produced by the ciliary body, which lies behind the iris (the colored part of the eye). The fluid then passes forward through the pupil and exits the eye by a sieve-like drainage system (the trabecular meshwork) in the angle between the cornea and the iris.