Bioptic

Bioptic is an adjective used to describe devices or systems that integrate two optical pathways to aid vision. The most common use is in bioptic telescopes, which combine a miniature telescope with conventional eyeglasses. This arrangement allows a person to switch between normal vision and high-magnification view, providing enhanced distance sight while preserving central and peripheral vision for everyday activities.

A bioptic telescope is typically mounted on the rim or edge of a pair of glasses. Magnification commonly ranges from about 2x to 6x, with some designs offering higher power. The telescope is used by looking through the magnified portion to focus on distant objects, then shifting back to the regular glasses for general viewing. Many systems are monocular, though binocular variants exist. The telescope’s field of view is narrower than the glasses alone, so users require training to locate targets and maintain balance between the two viewing modes.

Bioptic devices are primarily employed in low-vision rehabilitation to improve tasks such as recognizing distant details, watching performances, or driving. In driving, several jurisdictions allow or require bioptic use under supervised training and certification, with regulations varying by country or region. Training emphasizes safe use, reaction time, and adapting to the reduced field of view.

Considerations for users include cost, comfort, adaptation period, and the need for regular follow-up with an eye care professional to monitor fit and function. Bioptic technology aims to promote independence while prioritizing safety. See also: low vision, assistive technology, telescope.