What is Glaucoma[/b][/b]
Glaucoma is a common eye condition in which vision is lost because of damage to the optic nerve. The optic nerve carries information about vision from the eye to the brain. In most cases, the optic nerve is damaged when the pressure of the fluid circulating inside the front part of the eye rises. However, glaucoma-related eye damage can occur even when the fluid pressure is normal.
In the most common form of glaucoma, called primary open-angle glaucoma, fluid circulates freely in the eye and the prressure tends to rise slowly over time. Gradual loss of vision is usually the only symptom. A less common form of the disease, called acute or angle closure glaucoma, develops suddenly and usually causes eye pain and redness. In this form of glaucoma, eye pressure rise quickly because normal fluid flow within the eye becomes blocked. This happens when a structure called the angle (where the iris and the cornea meet) closes.
Although open angle glaucoma and acute glaucoma both cause blindness, their symptoms are very different.
Open Angle Glaucoma
This type of glaucoma causes vision to lost painlessly and so gradually that most people do not realise they have a problem until substantial damage has occured. Peripheral vision is usually lost first, especially the field of vision near your nose.
As larger areas of your peripheral vision fade, you may develop tunnel vision that has narrowed so you see only what is directly in front of you. If glaucoma is not treated, even this narrowed vision dissappears into blindness.
Closed Angle Glaucoma
This type of glaucoma occur suddenly and can include blurred vision, pain and redness in the eye, severe headache, halos around light at night, a haziness around the cornea, nausea and vomiting, and extreme weakness.
Glaucoma is a lifelong illness, but proper treatment can prevent vision loss.
Regular eye examination may help to identify people either with early stages of the disease or elevated eye pressures. Screening should be done by someone who is trained to recognise glaucoma, usually an opthalmologist or optometrist.
If you have been diagnosed with glaucoma, be sure to follow up regularly with your eye doctor. It is also important to use your medication as directed.
It is important that glaucoma treatment prevents further damage to your eye, but will not restore vision that has already been lost.
If you are older than 40 years old, schedule an eye examination on a regular basis, even if you have not noticed any change in your vision.
Optimax Eye Specialist Klang
(This post was last modified: 03-16-2012, 05:05 PM by optimaxklang.)