Glasses may work as a solution for some people, but the lenses required may be unacceptably thick for people with severe myopia. Contact lenses are also an option, but they need to be frequently ...

Concave lenses correct myopia by being thin at the centre and thick at the edge. It diverges light rays entering the eye so they focus further back, landing directly on the retina instead of in ...

Two common defects of the eyes are myopia (short-sightedness ... Short-sightedness can be corrected by placing a concave lens in front of the eye, as shown in the diagrams below.

Treatment effect was not lost after discontinuing multifocal lens wear in late teenage years. The findings support fitting children at a younger age and continuing until myopia progression ...