Key Points:

Multifocal (MF) contact lenses are designed to provide functional vision to presbyopic patients of different ages, refractive errors and pupil sizes

Pupil size decreases slightly with age; however, the correlation is weak and there is substantial variation among individuals

There is no clinically significant relationship between pupil size and refractive error

Neither age nor refractive error are relevant with respect to multifocal optic zone designs

A recent study showed that Alcon multifocal contact lenses are pupil size independent and demonstrated that pupil size did not affect the number of lenses required for a proper lens fitting or visual performance