How can one treat glaucoma successfully?

First, I will say go see your local doctor for professional help.

Second, anything I write in here are for reference and information purposes, not to be treated as a self medication rule.

Treating Glaucoma

Depending upon the type of glaucoma, treatment may include medication, usually prescription eyedrops, or surgery to lower the pressure in the eye and prevent further damage to the optic nerve. While there is no cure as yet for glaucoma, early diagnosis and continuing treatment can preserve eyesight. Source(s): http://www.glaucoma.org/treating/...

If by treat successfully you mean reverse any damage done, then no you can't.

It is, however, possible to curtail further deterioration and stabilise the condition by applying daily medication.

Consult with an opthalmologist.