Lenticular and full-field designs are listed as options for which group of visually impaired patients?

• A. Myopic visually impaired
• B. Aphakic patients
• C. Hyperopic visually impaired
• D. Emmetropic visually impaired

Answer: (C)

These designs are used when the goal is to provide magnification while keeping as large and usable a field of view as possible for someone who is farsighted. In hyperopia, the eye’s focusing power is insufficient, making near tasks hard and requiring additional plus power. A lenticular design achieves that by concentrating more power in the central portion of the lens, giving the needed magnification with a lighter, thinner edge, which helps manage weight and thickness for high-plus corrections. A full-field design, on the other hand, aims to magnify across the entire field of view, which helps maintain context and surrounding awareness while reading or doing close work.

For someone with normal or nearsighted vision, or for someone who lacks a refractive error like aphakia used to be, these specific spectacle designs are not typically the first choice. Aphakic patients do have extreme hyperopic shifts, but the traditional teaching emphasizes devices tailored to hyperopes needing wide-field magnification, which is why the hyperopic visually impaired group is identified as the best fit here. Emmetropic visually impaired individuals wouldn’t usually require these high-movment, wide-field magnification designs.