A. Winthernielsen et al., CONTRAST SENSITIVITY, GLARE, AND VISUAL FUNCTION - DIFFRACTIVE MULTIFOCAL VERSUS BILATERAL MONOFOCAL INTRAOCULAR LENSES, Journal of cataract and refractive surgery, 21(2), 1995, pp. 202-207
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.