Features

Case studies in contact lenses: Part 3 - High ametropia

In the third of our sample contact lens case studies, Jonathan Walker describes how a high astigmatic error was successfully corrected using rigid lenses

This article is best viewed in a PDF Format.

View PDF

 Get adobe

View PDF

View PDF

 Get adobe

Fitting the high astigmat is always a challenge, but when they are also long sighted it makes it even more challenging. Bennett and Rabbets1 showed that of the ametropic population, only 9 per cent have an ocular cylinder correction greater than 2.5 dioptres. Invariably, this is corneal astigmatism. Soft torics to this prescription give a poor visual result. The primary reason for this is because of the off axis movement of the lens.

Register now to continue reading

Thank you for visiting Optician Online. Register now to access up to 10 news and opinion articles a month.

Register

Already have an account? Sign in here

Related Articles