Effects of tinted intraocular lens on contrast sensitivity.
We evaluated contrast sensitivity and glare in 64 pseudophakic eyes. An ultraviolet-absorbing intraocular lens (IOL) was implanted in 32 eyes and a noncyanopsia yellow-tinted IOL was implanted in 32 eyes. The latter lens was designed to effectively absorb light below a wave-length of 500 nm. Contrast sensitivity was measured at a pupil diameter of 3 mm using an artificial pupil. The implanted yellow-tinted IOL showed improved contrast sensitivity in the middle spatial frequencies of 6 and 12 c/deg in photopic and mesopic vision. In addition, the yellow-tinted IOL decreased the effect of central glare on the contrast sensitivity.
Niwa
K
K
Department of Ophthalmology, School of Medicine, Tokyo Medical and Dental University, Japan.
Yoshino
Y
Y
Okuyama
F
F
Tokoro
T
T
D000368:Aged; D003116:Color; D015350:Contrast Sensitivity; D006801:Humans; D007910:Lenses, Intraocular; D008027:Light; D010364:Pattern Recognition, Visual / Q000502:physiology; D012542:Scattering, Radiation