Which are appropriate multifocal options for presbyopia/aphakia visually impaired patients?

• A. Monovision only
• B. Progressive, FT-28/35, executive, fused, blended, round-22/25, doublet, trifocal (round and flat)
• C. Single-vision and no multifocal options
• D. Bifocals only

Answer: (B)

The key idea is that there are many multifocal spectacle options available for people with presbyopia or aphakia, not just a single solution. Multifocal lenses are designed to provide multiple focal powers within one lens so the wearer can see at distance, intermediate, and near without changing glasses. The list of feasible designs includes progressive lenses, which transition power gradually across the lens without visible segments; bifocals with distinct distance and near zones; trifocals that add an intermediate zone; and older or alternative formats such as executive (larger near segment), fused or blended lenses (varying methods to create a gradual transition), and segment shapes like round-22/25 or round-and-flat trifocals. In aphakia, where the eye lacks the natural lens and accommodation, these multis focal configurations can help restore functional vision across tasks by providing appropriate near and distance focus in the same pair of glasses. A single method like monovision is a different strategy that uses different eyes for different tasks rather than multiple focal zones within one lens, so it’s not counted as a multifocal option. That breadth of designs is why the best choice lists the wide range of multifocal options.