Systane is an artificial tear drop used to treat various types of dry eye by reducing feelings of burning, grittiness and irritation. Systane eye drops can be used multiple times during the day, and are available over the counter in several different formulations.

Glaucoma is an eye disorder that can lead to blindness or low vision if left untreated. Two main issues are of concern when dealing with glaucoma: intraocular pressure (IOP) and fluid drainage.

Glaucoma is an eye disease that can lead to permanent loss of vision if the condition is not treated. Pressure within the eye, called intraocular pressure, increases and can hamper normal drainage of eye fluids. Both of these factors can cause the optic nerve to become damaged.

Glaucoma is elevated intraocular pressure (IOP) that squeezes the optic nerve fibers and causes vision loss. There are two types of glaucoma: open-angle and narrow-angle.