usually affects side (peripheral) vision first. If glaucoma isn't treated,
vision loss will continue, causing total blindness over time. If glaucoma
is found early and treatment starts right away, good eyesight can usually be
any type of glaucoma may delay or prevent further vision loss. But treatment can't
reverse vision loss that has already occurred. In a few rare cases of
congenital glaucoma, treatment has reversed some damage to the optic nerve.
Retinitis is a disease that threatens vision by damaging the retina -- the light-sensing tissue at the back of your eye. Although there's no cure, there are steps you can take to protect your sight and make the most of the vision you have.
How much your life will be affected
depends on your lifestyle and on how bad your vision loss is. Normal use of your eyes (such as for
reading or watching TV) won't speed up vision loss or make the
condition worse. For information on
how to live with low vision, see Home Treatment.
Open-angle glaucoma (OAG)
OAG usually affects both eyes at the same
time. But one eye may be affected more than the other.
Vision changes so slowly that much of your eyesight may be affected before you
notice the condition.
Blind spots from each side of the field of vision gradually meet, increasing
the area of blindness. Central vision, used for reading and seeing details, is
Closed-angle glaucoma (CAG)
CAG usually affects only one eye at a time. It can happen suddenly (acute) or be a long-term problem. If it's acute, it's an emergency. Severe and permanent vision loss can develop within
hours or days after symptoms start.
You may have short episodes of CAG.
Without treatment, these episodes will keep coming back. They can become an emergency
situation (acute closed-angle glaucoma) or a long-term problem (chronic
Congenital glaucoma may be present at birth or develop within the first few years of life. Treatment needs to start right away to help avoid further vision loss and blindness. In certain children, some of the optic nerve damage caused by the disease can be reversed with treatment.