title: Color vision in patients with a silicone intraocular lens.
abstract: OBJECTIVE
  To test color vision in eyes with a silicone intraocular lens (IOL) and compare it with that in normal phakic eyes.
  
  
  METHODS
  University Eye Clinic of Kuopio, Finland.
  
  
  METHODS
  Color vision in 33 patients from 50 to 69 years old with a silicone IOL was evaluated with the Farnsworth-Munsell 100 hue test (FM 100) and the Color Vision Meter 712 (CVM) anomaloscope. In the FM 100 test, 37 normal phakic eyes served as controls; 21 were 50 to 59 years old and 16, 60 to 69 years old. In the CVM, 46 normal phakic eyes served as controls; 21 were 50 to 59 years old and 25, 60 to 69 years old. Nine of the 33 patients had a silicone IOL in one eye and a poly(methyl methacrylate) (PMMA) IOL in the other; the color vision in the two eyes was compared.
  
  
  RESULTS
  The FM 100 results showed no significant difference between the silicone IOL and control eyes. In the CVM examination, the blue equation showed a significantly greater shift to the green side (patient sees more blue) in the silicone IOL group than in the control group. Other CVM results were similar between groups. No significant difference was found in any test between the 9 PMMA IOL eyes and the contralateral silicone IOL eyes.
  
  
  CONCLUSIONS
  Eyes with a silicone IOL had color discrimination ability similar to that of normal phakic eyes. In the blue color sensitivity test, the silicone IOL eyes had significantly better results. There were no significant differences between eyes with a silicone IOL and contralateral eyes with a PMMA IOL.
authors.affiliation: Department of Ophthalmology, University of Kuopio, University Hospital of Kuopio, Finland.
authors.forename: M
authors.initials: M
authors.lastname: Mäntyjärvi
authors.forename: K
authors.initials: K
authors.lastname: Tuppurainen
mesh_terms: D000368:Aged; D003118:Color Perception / Q000502:physiology*; D003119:Color Perception Tests; D005260:Female; D006801:Humans; D007908:Lens, Crystalline / Q000502:physiology; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D012826:Silicone Elastomers
chemical_list: D012826:Silicone Elastomers