Cataract - A Cataract is a clouding of the lens inside your eye. Your vision becomes blurred as it is as if you are looking through a bathroom window. Often cataracts take many years before they require surgery. If surgery is required, a surgeon will remove the cataract lens through a small hole and replace it with a clear artificial lens. The cataract is not a skin that grows over the eye and cannot be removed by laser.
Glaucoma - Glaucoma is an eye disease in which raised pressure in the eye causes damage to the optic nerve. There is constantly fluid flowing into and out of the eye. If the fluid cannot drain or there is too much fluid being produced then the intra-ocular pressure increases which in turn causes damage to the optic nerve. There are two main types of Glaucoma. The first type is when the pressure increases rapidly causing a large amount of pain which requires immediate medical attention. In the second type the pressure is slightly high which can lead to loss of peripheral vision. In the early staqes you would not notice this loss. Eventually when you start to have symptoms it is often too late to save your siqht. Regular eye examinations can detect early signs of glaucoma and prevent otherwise unrepairable visual field loss.
Macular Degeneration - The macula is the part of the retina that is used for the centre of your vision. As the eye ages, this area can become damaged, sometimes referred to as, "wear and tear". Usually the central vision deteriorates slowly causing difficulties for tasks such as reading,watching television and driving. Unfortunately there is no treatment for this type of macular degeneration.
For more information on diseases of the eye, click here to be taken to the RNIB web site