Rigid Gas Permeable contact lenses are excellent for treating high astigmatism and conditions such as kerataconus where the front of the eye is not a regular shape. The contact lens provides a new smooth refractive surface to focus the light neatly on the retina.  Toric gas permeable lens designs can be used to improve the stability of the contact lens fit with high corneal astigmatism and for ‘very high’ astigmatism Bi-Toric gas permeable lenses are available.

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