Is Everyone Suitable for Ortho-K?

Orthokeratology at Envision Optical

The answer is NO.

The procedure works best up to a maximum of 4.50 dioptres of myopia and 2.00 dioptres of astigmatism.  New lenses are now also being trialled for the correction of moderate amounts of hyperopia.

Prescriptions above this may be reduced, but total correction is not usually possible.  In addition there are several unknown factors for each individual; the complexity of the corneal shape and the response of the cornea itself.  Thus the speed of corneal moulding from one individual to the next will vary.

Whilst the success rate is very high, total success cannot be guaranteed due to these factors.











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