CONTRAST SENSITIVITY, GLARE, AND VISUAL FUNCTION - DIFFRACTIVE MULTIFOCAL VERSUS BILATERAL MONOFOCAL INTRAOCULAR LENSES

We measured contrast sensitivity binocularly in different light condit ions in nine patients with bilateral diffractive multifocal intraocula r lenses (IOLs) and nine patients with bilateral monofocal IOLs. In ge neral, the diffractive multifocal group had a lower mean contrast sens itivity. Patients completed a questionnaire that asked about their vis ion under daylight, twilight, and sunshine conditions. Monofocal patie nts had complete visual restitution in all light conditions. Multifoca l patients reported several visual problems, especially when driving a t night, but also in normal daylight and cloudy weather conditions.