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Optical FAQ

What is long-sightedness (hyermetropia)?
This is a common visual problem. The eyeball of a long-sighted person is usually shorter than others.

What is Short-sightedness (myopia)?
It causes problems with distant objects but close objects are very clear. Short-sightedness occurs when the eyeball is slightly longer than normal.

What is Presbyopia?
When we enter into our 40's we often experience blurred vision when trying to do close work, such as reading, sewing or working at the computer.

When Presbyopia develops people find they have to hold books, newspapers, magazines, menus etc at arm's length to focus it properly. Prolonged close work may lead to headaches or eyestrain.

What is glaucoma?
Your eye has pressure just like your blood and when this intra ocular pressure increases to dangerous levels, it causes optic nerve damage - this is glaucoma.

Your optician will check your intra ocular pressure at each appointment to monitor any change.

What is Cataract?
A cataract is sometimes described as clouding of the lens within the eye.

The lens is made up mostly of water and protein. With progressing age some of the proteins clump together and start to cloud a small area of the lens. This is a cataract starting to form and it will grow larger and cloud more of the lens, making it harder to see.

What Causes Dry Eyes?
This is a lack of lubrication and moisture on the eye. The consequences of this, ranges from subtle irritation to severe irritation. Treatment is usually artificial tears and lubricants; your optician will be able to advise which is best.

What are Floaters?
They are actually tiny clumps of gel or cells inside the jelly in they eye. They may look like specks, strands, webs or other shapes. In most cases it is a natural age related change, but floaters can also appear more obvious during pregnancy.

Floaters may be annoying but they are harmless and may fade over time. If associated with flashes of light contact your optician immediately.

What is Astigmatism?
It occurs when the cornea is shaped like an oblong rugby ball rather than a spherical football. The oblong shape causes light to focus at two different points at the back of your eye rather than one.