Semi Finished 1.59 Polycarbonate Flat Top Bifocal Lenses

Bifocal lenses are versatile multi-purpose lenses featuring two distinct vision zones in a single lens. The larger upper portion is typically prescribed for distance (or intermediate/computer use), aligning with natural straight-ahead gaze. The smaller lower segment, known as the “reading window,” corrects near vision for tasks like reading, leveraging the natural downward eye movement. This dual-design seamlessly combines distance and near correction for everyday convenience.