Glaucoma damage is irreversible and progressive.

Treating glaucoma is liking sailing a  ship.  Things move slowly but inexorable. The only way to steer the ship from sailing into the rocks ( blindness) is to lower the intra-ocular pressure to achieve a target pressure with  various combinations of medications, laser or surgery.

How is glaucoma detected?

Regular eye examinations by your ophthalmologist are the best way to detect glaucoma. A glaucoma screening that checks only the pressure of the eye is not sufficient to determine if you have glaucoma.