Astigmatism: 90 is the direction of the astigmatism not the amount. Astigmatism is when the eye is not entirely round and is very common. For low levels of astigmatism it is possible to provide a spherical equivalent prescription. However, if you are symptomatic at night it might me necessary to have the full correction.
Answered 12/2/2014
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Depends: If the amount of your astigmatism is small, you may not need special contact lenses.
Answered 4/11/2013
5.2k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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