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Eyesight Explained


Your eyesight can be affected in a variety of different ways, sometimes related to age or the shape of your eyeball.

Almost all conditions are treatable to some degree, with some conditions, the earlier they are detected, the easier they are to treat.

Common Eye conditions:

Short sight

Myopia is the medical term for the eye condition better known as short sightedness.

If you are only able to see things clearly at a distance with the help of vision aids, then you are short sighted.

People with myopia are able to see objects close to them clearly; it is only when objects are far away that problems occur.


Long sight

Hyperopia is an eye condition that is often better known as long sightedness.

If you have difficulty focusing on things that are close by, but find it easy to see things that are far away, there's a chance you could be long sighted.

Long sightedness is caused when the eyeball is too short or when the lens is not round enough. This makes it difficult for the eye to focus on near objects.

Some long sighted people find that their symptoms become more pronounced as they age, with some finding that they end up having difficulty focusing on distant objects too.


Astigmatism

Astigmatism is an eye condition that can affect the clarity of your vision and make it more difficult for you to focus on objects. Astigmatism is most common in eyes where the cornea is oval like a rugby ball instead of spherical like a football.

Most astigmatic corneas have two curves; a steeper curve and a flatter curve. This causes light to focus at more than one point in the eye, resulting in blurred vision. Astigmatism can be a mild or fairly serious eye condition, with symptoms ranging from very mild blurred vision to severe blurriness resulting in squinting, fatigue and headaches.

Many long sighted and short sighted people also suffer from some degree of astigmatism.


Presbyopia

Presbyopia is an eye condition that is characterised by an inability to focus on objects that are nearby. It is a condition that is caused by the ageing process and is common in people reaching middle age.

When reaching their 40's and 50's, many people find they have difficulty in focusing and suffer from presbyopia to some degree - even if they have never had any trouble with their sight in the past. This is because, as the natural lens ages, it finds it more difficult to alter its focus from distance to near..



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