Research Review: <br>Pupil Size and Multifocal Lens Performance</br>

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Pupil size varies significantly among individuals performing the same visual tasks, impacting multifocal contact lens performance.
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Multifocal contact lenses show similar or insignificantly worse high-contrast distance visual acuity compared to single vision lenses across varying pupil sizes.
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A 2-line difference in visual acuity was observed between 3-mm and 6-mm pupils when using low-contrast charts with multifocal contact lenses.
4

Visual satisfaction with multifocal contact lenses is linked to pupillary dynamics, indicating that adaptability in pupil size may enhance lens performance.
5

Tinted lenses can enlarge pupils, potentially improving distance optics experience, but may decrease distance visual acuity if light transmission is too low.

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