‘Prevention is better than cure‘ is apt for someone with glaucoma of his/her family member, as this disease steals your sight slowly and steadily and whatever once lost never comes back.
So patients with glaucoma need to be diagnosed early and put on treatment . Treatment usually starts with eye drops and in advanced cases surgery may be required. In a particular type of glaucoma LASER may be needed to reduce the eye pressure.
People with family history of glaucoma should get eyes checked at least once a year to pick it up early and prevent damage to optic nerve.