Daily Archives: March 12, 2023

Progressive lenses, also known as multifocal lenses or varifocal lenses, are eyeglass lenses that allow people to see clearly at different distances without having to switch between different pairs of glasses. They work by gradually changing the lens power from distance vision at the top of the lens to intermediate vision in the middle to […]

Bifocal lenses are eyeglass lenses that contain two different prescriptions for correcting both near and far vision in one lens. The upper part of the lens is designed for distance vision, while the lower part is intended for near vision. Bifocal lenses are used to correct presbyopia, a common age-related vision condition that occurs when […]