How contact lenses work

Synonyms in a broader sense

Sticky lenses, sticky cups, sticky glasses, glasses
engl .: contact lenses

How contact lenses work

In healthy people, the light rays are refracted by the cornea and lens in such a way that they hit the retina exactly and can therefore be seen clearly. Myopia (Myopia) means that the point at which an image can be seen in focus lies in front of the retina. With farsightedness (Hyperopia) it is the other way round, the light rays are refracted in such a way that the image can only be seen clearly behind the retina.

With the help of contact lenses the Refractive power of the eye Depending on the visual defect, changed so that the incoming light rays can be seen sharply on the retina again.

Other visual defects can also work well contact lenses be balanced. At a Astigmatism (astigmatism) they are particularly well suited and easier to adapt than glasses. Even with very irregular corneal surfaces, good results and sharp vision can be achieved with hard contact lenses.