How does untreated elevated intraocular pressure eventually lead to visual impairment?

Question

Quizplus · Accepted Answer

The photoreceptors of the retina are the part of the sensory nerve that respond to light and enable vision.These receptors require a constant supply of oxygen.Higher than normal intraocular pressure compresses retinal vessels and limits or prevents blood flow to these receptors.As a result of this lack of oxygen,the receptors die and are not replaced.Loss of any photoreceptors reduces vision.Loss of them all causes total blindness.

How Does Untreated Elevated Intraocular Pressure Eventually Lead to Visual