Lenses for cataract patients are usually made with which type of base curve?

For cataract patients, lenses are typically made with an aspheric base curve primarily because this design minimizes optical distortions and improves visual acuity. Traditional spherical lenses may lead to issues such as peripheral distortions, which can be particularly problematic for individuals who have undergone cataract surgery.

Aspheric lenses have a more complex surface profile, allowing for a gradual change in curvature from the center to the edges of the lens. This feature enhances image quality and provides a wider field of vision, which is crucial for patients who may have already experienced compromised vision quality due to cataracts.

In summary, the choice of an aspheric base curve for cataract patients is aimed at enhancing visual performance and comfort, making them a preferred option in such cases.