Eye Health

What are the different types of refractive errors?

Myopia, Near-sightedness
Myopia, Near-sightedness, is a condition where objects up close appear clearly, while objects far away appear blurry. With near-sightedness, light comes to focus in front of the retina instead of on the retina.
Hyperopia, Farsightedness
Hyperopia, Farsightedness, is a common type of refractive error where distant objects may be seen more clearly than objects that are near. However, people experience farsightedness differently. Some people may not notice any problems with their vision, especially when they are young. For people with significant farsightedness, vision can be blurry for objects at any distance, near or far.
Astigmatism
Astigmatism is a condition in which the eye does not focus light evenly onto the retina, the light-sensitive tissue at the back of the eye. This can cause images to appear blurry and stretched out.
Presbyopia
Presbyopia is an age-related condition in which the ability to focus up close becomes more difficult. As the eye ages, the lens can no longer change shape enough to allow the eye to focus close objects clearly.

Common Eye Conditions

Age related macular degeneration (AMD)
Age related macular degeneration (AMD) is an eye condition which affects the central part of your retina which is called the macula. It causes changes to your central vision which can make some everyday tasks difficult.
Cataracts
Cataracts cause changes to the lens in your eye which makes your sight cloudy and misty. Cataracts are treated by surgery, during which the cloudy lens is removed and replaced by an artificial lens.
Diabetes
Diabetic eye disease has no warning signs. Finding and treating the disease early, before it causes vision loss or blindness, is the best way to control diabetic eye disease. If you have diabetes, make sure you get a dilated eye examination at least once a year.
Glaucoma
Glaucoma is a group of diseases that can damage the eye’s optic nerve and result in vision loss and blindness. It is one of the main causes of blindness in the West. However, with early treatment, you can often protect your eyes against serious vision loss. Therefore, it is very important that it be diagnosed.
Squint
Squint is an eye condition, where the eyes do not look in the same direction. This means that one eye may not focus on an object someone is looking at. Whilst one eye looks forwards to focus on an object, the other eye turns either inwards, outwards, upwards or downwards. Most squints occur in young children. Sometimes when a child has a squint, the sight in the eye which turns may be weaker. Squints can also develop in adults but normally for different reasons than cause them in young children. Strabismus is a more medical term for squint and you may hear it being used by eye care professionals.
Vision Training
Vision Training is a type of physical therapy for the eyes and brain: it can be highly effective non-surgical treatment for many common visual problems such as lazy eye, crossed eyes, double vision, convergence insufficiency and some reading and learning disabilities. Many patients who have been told, "it's too late," or "you'll have to learn to live with it" have benefited from vision therapy. In the case of learning disabilities, vision therapy is specifically directed toward resolving visual problems which interfere with reading, learning and educational instruction.
Low vision
Low vision is when a person's sight can't necessarily be corrected with glasses or contact lenses. Low vision doesn't develop just because of old age. Your vision can get worse as a result of cataracts, age-related macular degeneration or diabetic retinopathy.
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