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Glaucoma is a condition in which the pressure within the eye (intraocular pressure, IOP) increases. This is due to the fluid in the eyes, called the “aqueous humour,” which normally flows in and out of the eye, becomes blocked and starts accumulating due to poor drainage. The resulting increase of pressure damages the optic nerve, the nerve that carries the images from the eye to the brain, and blindness can occur.
There are several different types of glaucoma. The most common is called open angle glaucoma which occurs in 80% off all people with glaucoma. Other types of glaucoma are: angle-closure glaucoma (two types: acute and chronic angle-closure), neovascular glaucoma, pigment dispersion and exfoliation glaucoma, normal-pressure or low pressure glaucoma, and infantile glaucoma.
Glaucoma shows no symptoms other than vision loss, which can occur so gradually that many people do not realize it is happening. The first part of vision loss is usually peripheral vision. Even though glaucoma cannot be cured, if it is spotted in its early stages, before any sight is lost, blindness can almost always be prevented.
The Vision Improvement Program will improve the vision, protect and nourish the optic nerve, and in some cases, may help lower the intraocular pressure.Learn about the Vision Improvement Program