Progressive addition lenses are single-piece lenses that feature a smooth transition in curvature across the lens surface. The curvature gradually increases from the upper distance portion to the lower near portion. Unlike bifocal or trifocal lenses, progressive lenses offer a seamless solution for individuals with presbyopia, providing optimal dioptric power for all distances. This ensures a continuous and uninterrupted visual experience without any noticeable lines separating the different lens segments.
Lecturer (Nethradhama School of Optometry)
Moptom