Glaucoma, the silent thief of sight is a term used to describe a group of diseases of the eye characterized by progressive and irreversible damage to the optic nerve (nerve of the eye responsible for vision) and which if untreated can lead to blindness. Though raised pressure of the eye (pressure maintained by fluid in the eye) is an important risk factor, a few individuals can develop glaucoma even with normal pressure of the eye.
There are two major types of Glaucoma:
The chronic open-angle form of glaucoma is the most common form. Damage to vision is gradual and generally painless.
In the closed or acute form, the intraocular pressure increases rapidly due to a sudden and severe block of fluid drainage within the eye. Significant symptoms indicating the presence of acute glaucoma appear immediately. This condition has to be treated quickly by an ophthalmologist otherwise blindness may occur.
REGULAR EYE EXAMINATION PLAYS A KEY ROLE IN DETECTING GLAUCOMA, TESTS INCLUDE THE FOLLOWING
Inner eye pressure (IOP)
Shape and colour of the optic nerve
Complete field of vision
Angle in the eye where the iris meets the cornea
Thickness of the cornea
Just like CT Scan, enables accurate and reproducible measurements of ONH and RNFL parameters, analyze glaucoma progression
Glaucoma treatment currently falls within three basic categories – medication, incisional surgery and laser treatments. All of these are aimed at lowering intra ocular pressure (IOP) within the eye.
While these are effective for most patients, many continue to lose vision through damage to the optic nerve. For them, there is great need for treatments that stop progression independent of IOP.
Eye drops standard medication option for glaucoma patients. They lower fluid pressure by stimulating the eyes own drainage system or by decreasing the eye’s fluid production.
Laser light is used to open drainage channels in the eye.
Surgery is used to either open the natural drainage channels in the eye, to insert tiny shunts to improve drainage or to remove that part of the eye that is preventing fluid drainage. There are two primary kinds of non-laser surgery: