Glasses for visually impaired patients aim to maximize magnification devices at which distances?

Glasses for visually impaired patients aim to maximize magnification devices at which distances?

• A. Distance and near
• B. Distance only
• C. Near only
• D. Neither distance nor near

Answer: (A)

Maximizing magnification devices works best when the eye is optimally corrected for the distance at which the device is used. In low vision, people use magnifiers and telescopes for tasks at both distance and near. A proper distance correction enables effective use of distance-viewing devices, while a proper near addition or reading correction enables near tasks to be magnified clearly. If you only optimize for distance, near work falls out of focus; if you only optimize for near, distance tasks suffer. Since magnification devices are used across both distance and near tasks, glasses should support both ends of the spectrum.

Maximizing magnification devices works best when the eye is optimally corrected for the distance at which the device is used. In low vision, people use magnifiers and telescopes for tasks at both distance and near. A proper distance correction enables effective use of distance-viewing devices, while a proper near addition or reading correction enables near tasks to be magnified clearly. If you only optimize for distance, near work falls out of focus; if you only optimize for near, distance tasks suffer. Since magnification devices are used across both distance and near tasks, glasses should support both ends of the spectrum.