I have a refractive error of about -1.75 dioptres in both eyes. I am 34 years old and the error progresses by approximately 0.25 dioptres every few years. I am considering a laser vision correction procedure, but I have heard opinions that this solution is perfect to correct severe vision defects and in the case of milder refractive errors it may for instance correct an error of -2 dioptres to -1 dioptre and it may still be necessary to wear glasses.

Whether laser vision correction will turn out to be a good solution for a given patient depends not only on the value of the refractive error, but also on whether using contact lenses or glasses is uncomfortable and hinders the patient’s everyday functioning in any way.

The value of 0.25 dioptres is considered to be the “margin of error” because the result of the computer examination depends on many factors, such as the patient’s general condition and eye hydration. If the refractive error deepens by 0.5-1.0 dioptre per year, it is regarded as error progression. In such a case, a laser vision correction procedure will not bring permanent results. More information on this subject is available in an article on our website.