The pressure exerted by the fluid present inside the eye is called intraocular pressure. The test that eye doctors use to measure eye pressure is called tonometry. If high intraocular pressure is left untreated, it can result in glaucoma and permanent vision loss.
Glaucoma: An Overview
Glaucoma is a condition affecting the eye in which the optic nerve is damaged by high levels of pressure, which can lead to blindness if left untreated.

Long-Term Variability in Intraocular Pressure
An increase in ocular pressure for a period of one year or more can cause damage to the optic nerve and increase the risk of glaucoma.
Malignant Glaucoma: Addressing Vision Amidst Pressure
Malignant glaucoma is a rare and severe complication that often accompanies ocular surgery and trauma, specifically glaucoma surgery.