Which lens is used to correct presbyopia?

• A. Single-vision
• B. Bifocal
• C. Multifocal
• D. Plano

Answer: (C)

Presbyopia requires access to multiple focal powers, since the eye’s ability to focus up close declines with age. A single-vision lens can’t provide both distance and near clarity, while a bifocal lens does offer two distinct powers but has a visible transition and is just one specific type within the broader category. A multifocal lens, on the other hand, includes multiple focal powers across the entire lens (and can be arranged as progressive or other designs), giving a smoother, more versatile range from distance to near. That versatility makes it the best choice for correcting presbyopia, whereas plano would not correct it at all.