Sport lens or curved lens is designed to be suitable for frames with high curvature or that wrap around the face, such as cycling glasses, golf glasses, sports glasses, etc.
Sport lens or curved lens is calculated by considering the curvature of the frame, determining the angle of curvature, and calculating the light refraction to ensure it fits comfortably with the frame. ***It is not suitable for high prescription values or activities that require frequent side-glancing, such as tennis.

Limitations

Since sport lenses have a significant curve that wraps around the face, they may not provide the same clarity and comfort as regular lenses with a gentler curve. This is because glasses with more curvature tend to cause more Oblique astigmatism compared to regular frames, which can lead to some distortion in the prescription. Even though modern technology in sport lenses has advanced to compensate for and reduce this distortion, the lens still has its limitations.