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Q: Can you get astigmatism later in life even if you never had one before?
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Not normally. Most people have a small degree of astigmatism, and even quite large degrees of it need not be associated with the eyes wandering from side to side: "nystagmus" Nystagmus in the young can occur with a wide range of eye disorders of childhood such as cataract, glaucoma, some disorders of the retina and albinism. It may also be found in children who have multiple disabilities such as Down's syndrome, though it is quite possible for no clear cause to be found. Poor vision with very severe uncorrected astigmatism, could be a factor in some cases. Nystagmus appearing later in life may be a symptom of another condition such as stroke, multiple sclerosis or even a blow to the head. There are many causes.


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How can I have my astigmatism corrected?

Contact lenses for correction of astigmatism are generally either gas permeable lenses, which are semi-hard lenses, or toric soft contacts. There is also a type called Orthokeratology lenses which are worn at night to help reshape the eye. Your Opthamologist will know they best type of you or if contacts are even the right way to go.


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Astigmatism Correction Possible With Toric Contacts?

Astigmatism is a hereditary condition, but it can also be caused by eye injury or cataract surgery. Astigmatism may occur in one eye or both and results when the cornea is not properly shaped. A healthy cornea will be round in shape; however with astigmatism, the cornea will be irregular in shape. An astigmatism prevents light entering through the cornea to focus properly on the back wall of the eye. People with astigmatism experience blurred vision correlating to the degree of irregularity in the cornea; however, the condition will often be seen in combination with near or far sightednessThere are various treatments available for astigmatism, including surgery, glasses and contacts. Contacts are not as invasive as surgery and not appearance altering like glasses, making them an attractive option for many people.The type of contacts your optometrist will recommend depends largely on the degree of astigmatism you have. Mild astigmatisms may be corrected with gas permeable standard, or spherical, contacts. These lenses are made from a more rigid material and are able to create the even circular shape needed to correct the wearer's vision.Specialized astigmatism contacts are also known as toric lenses. For those with moderate to severe astigmatism, toric lenses will be recommended by your optometrist. Unlike spherical lenses for patients with mild or no astigmatism, toric lenses designed to stay in place and correct the irregular corneal shape. These lenses are weighted with a top and bottom. Unlike standard spherical lenses that will move and twist as the wearer blinks, toric lenses have a heavier bottom. Regardless of how they are placed on the eye, the heavier end will move to the bottom of your eye and the lens will stay in place. Once in place, toric lenses will also reshape the cornea, rather than conform to it.Due to their specialized features, toric lenses are generally more expensive than spherical lenses; however the benefits outweigh the costs. Unfortunately, not all astigmatism can be corrected with contact lenses. If you suffer from astigmatism, consult your optometrist to see if toric lenses are right for you.


What does stigmatism mean in geometry?

Stigmatism doesn't meant anything in geometry and is not even a word. Astigmatism, however, is where rays in an optical system propagate in two perpendicular planes that have different focus.