What edge design is recommended for a +15.00D aphakic gas permeable lens?

A lenticular myoflange edge design is recommended for a +15.00D aphakic gas permeable lens due to its specific advantages for high-powered lenses. This design incorporates a thinner center with a thickened periphery, which helps to reduce the overall weight of the lens while maintaining the required optical performance. The myoflange design also promotes a more stable fit on the eye and can assist in minimizing potential lens movement and discomfort, which is particularly important for higher-powered lenses that may be heavier and more cumbersome.

In the context of an aphakic lens, which is used after cataract surgery to replace the eye's natural lens, the lenticular design provides better centration and can help align the optical zone appropriately with the pupil. This alignment is crucial for maximizing vision quality, especially given the higher refractive power needed for aphakic patients.

Other edge designs may not provide the same benefits; for example, a flat edge design may not offer the same level of stability and could result in greater lens movement, while a thicker edge design can increase weight and may not sit as comfortably on the eye. A round edge design, while providing a smooth transition, might not adequately address the unique demands of a high prescription like +15