Astigmatism is a common condition where the cornea or the lens inside the eye does not have the same degree of curvature all the way around. When outside light is past through an irregular cornea or lens the light will not focus at just one point on the other side.

A large percentage of people have astigmatism. If you have more than 0.75 “cylinder” or astigmatism in your prescription you may best benefit from a rigid gas-permeable or soft toric (toric means astigmatism incorporated in to the contact lens) contact lens to correct your vision properly.

Presently there are a few regular soft lenses that may “mask” some astigmatism. More recently, some of the manufacturers of disposable soft lenses now produce toric lenses as well as frequent replacement lenses, which are replaced every two weeks to three months depending on the lens.

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