Low-tension or normal-tension glaucoma The optic nerve is damaged but the eye pressure is normal.
Closed-angle glaucoma This type produces a sudden increase in eye pressure. Symptoms include severe pain and nausea, as well as redness of the eye and blurred vision. This is a medical emergency and requires immediate treatment. Without treatment, blindness may occur in 1 or 2 days.
Congenital glaucoma This type affects children who are born with eye defects that slows the normal drainage of fluid. These children usually have obvious symptoms, such as cloudy eyes, sensitivity to light, and excessive tearing.
Secondary glaucoma This type develops as a complication of other medical conditions. It may be associated with eye surgery or advanced cataracts, eye injuries, certain eye tumors, or uveitis (eye inflammation). Pigmentary glaucoma occurs when pigment from the iris flakes off and blocks the meshwork, slowing fluid drainage. A severe form, called neovascular glaucoma, is linked to diabetes. Corticosteroid drugs used to treat eye inflammations and other diseases can trigger glaucoma in some people.
Glaucoma eye drops are generally safe, but be sure to tell all your doctors that you’re using them. These eye drops are medicines. Like most medicines, they can have side effects (like dizziness or troubled breathing), or they might not work well with other medicines you may take. Keep your glaucoma eyedrops away from children.
It is imperative that you take your eye drops exactly as prescribed in order to best control your glaucoma. Eye drops can interact with other medications. Make sure you tell your doctor about any other medications or supplements that you are taking.
First, check the label on the bottle to make sure that you are using the right medicine.
Wash your hands
Before you open the bottle, shake it a few times.
Bend your neck back so that you’re looking up at the ceiling. Use one finger to pull down your lower eyelid (see drawing at right)
Without letting the tip of the bottle touch your eye or eyelid, squeeze one drop of the medicine into the space between your eye and your lower eyelid. If you squeeze in more than one drop, you’re wasting medicine.
After you squeeze the drop of medicine into your eye, close your eye. Then press a finger between your eye and the top of your nose. Press for several minutes. This way, more of the medicine stays in your eye. You’ll be less likely to have side effects.
Wash your hands again after you put the drops in your eyes.
Don’t let the tip of the bottle touch a table, the cabinet or anything else.