Prevention - regular check-ups with an ophthalmologist
If you have a hereditary predisposition to chronic glaucoma, you should have your eyes examined once a year by an ophthalmologist.
If one experiences overlooking objects in the field of view, you should seek professional help.
It is important to be aware that treating glaucoma is usually lifelong. The purpose of the treatment is to prevent the vision from deteriorating. There is no treatment that can improve vision and there can be side effects associated with all the types of treatments that are available.