Problems solving in orthokeratology lens fitting

Abstract

Orthokeratology (OK) is a therapy aimed at correcting refractive errors by briefly changing a curvature of the corneal surface through the programmed use of rigid gas permeable reverse geometry contact lenses.The method is currently widespread, especially in children, because of the number of advantages, and has also proved to be an effective way to slow progression of myopia.In this article it is discussed the difficulties encountered in the process of fitting orthokeratology contact lenses (OK-lens) by specialists with different training levels as well as the reasons of difficulties. Recommendations are given on how to avoid these problems and how to solve them in order to make the fitting of OK-lens more effective and comfortable for both the practitioner and the patient and to ensure their safe use.