title: Visual function in patients with yellow tinted intraocular lenses compared with vision in patients with non-tinted intraocular lenses.
abstract: OBJECTIVE
  To compare the visual function in patients with short wavelength blue light blocking yellow tinted intraocular lenses (IOLs) with that in patients with non-tinted IOLs.
  
  
  METHODS
  74 patients scheduled for bilateral cataract surgery underwent implantation of either yellow IOLs (HOYA YA60BB) or non-tinted IOLs (VA60BB) in both eyes. Contrast visual acuity with and without a glare source was measured under photopic (100 cd/m2) and mesopic (slightly higher luminance than typically used-5 cd/m2) conditions at 2 weeks and 3 months after surgery using the contrast sensitivity accurate tester. Visual acuity and the incidence of patients who noted cyanopsia were also examined.
  
  
  RESULTS
  No significant differences between the yellow tinted and non-tinted IOL groups were observed in mean visual acuity or in photopic or higher luminance mesopic contrast visual acuity with and without glare source at either 2 weeks or 3 months after surgery. Furthermore, there was no significant difference in contrast visual acuity loss as a result of glare. The incidence of patients who noticed cyanopsia was significantly less in the yellow tinted IOL group than in the non-tinted IOL group at 2 weeks after surgery (p = 0.0234), but no patients reported cyanopsia at 3 months.
  
  
  CONCLUSIONS
  Visual function in patients with yellow tinted IOLs is virtually the same as that in patients with non-tinted IOLs.
authors.affiliation: Hayashi Eye Hospital, 4-7-13 Hakataekimae, Hakata-Ku, Fukuoka 812, Japan. hayashi-ken@hayashi.or.jp
authors.forename: K
authors.initials: K
authors.lastname: Hayashi
authors.forename: H
authors.initials: H
authors.lastname: Hayashi
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D015350:Contrast Sensitivity; D005260:Female; D005374:Filtration; D019466:Glare; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000379:methods; D007910:Lenses, Intraocular; D008268:Macular Degeneration / Q000517:prevention & control; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D011474:Prosthesis Design; D014792:Visual Acuity