Eye Diseases

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Blindness and low vision can occur as a result of a number of different diseases, conditions or accidents. Some eye diseases are present at birth, others are caused by a disease or infection and others can be brought on by accidents or through exposure to ultraviolet (UV) light or chemicals. Many of the most common eye conditions, such as cataracts and glaucoma, are primarily age-related and have no known cause. This section provides information about 4 of the most common eye disorders that can cause either blindness or low vision: refractive errors, age-related macular degeneration, cataract and glaucoma. You can learn more about each specific disease, how to recognise the symptoms, and what steps you can take to treat them before your vision deteriorates further. 

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What are refractive errors? Refractive errors occur when the shape of the eye prevents light from focusing directly on the retina. Refractive errors can be caused by the length of the eyeball (longer or shorter), changes in the shape of the cornea, or aging of the lens. The most common types of refractive errors are near-sightedness (myopia), far-sightedness (hyperopia), as

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What is Age-Related Macular Degeneration? Age-related macular degeneration (AMD) is a common eye condition among people as they age. In fact, Vision Australia ranks AMD the leading cause of severe vision impairment in people aged over 40 years in Australia. This condition gradually destroys the macula, the part of the eye that provides sharp, central vision needed for see

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What are cataracts? A cataract is a clouding of the eye's natural lens. While cataracts most commonly occur in those who are older, they can be present at birth and develop at any age due to a variety of causes. Types of cataracts include: Subcapsular cataract: This occurs at the back of the lens. People with diabetes or those taking high doses of steroid medication

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What is glaucoma? Glaucoma refers to a group of eye diseases that can damage the optic nerve, which carries information from the eye to the brain. In most cases, glaucoma is associated with higher-than-normal pressure inside the eye. If untreated or uncontrolled, glaucoma first causes peripheral vision loss and eventually can lead to blindness. There are two major categori

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