Frequency doubling technology perimetry after clear and yellow intraocular lens implantation.
OBJECTIVE
To evaluate the effect of intraocular lens (IOL) color on frequency doubling technology (FDT).


METHODS
Randomized clinical trial.


METHODS
For 26 eyes of 26 patients, FDT perimetry (24-2-threshold test) was measured three months after cataract surgery. An acrylic IOL was randomly selected from clear (VA60BB, HOYA) and yellow-tinted lenses (YA60BB, HOYA), which only differed by color. As a control, a further 14 cataractous eyes with visual acuity > or =20/30 were examined. We analyzed mean deviation (MD) and pattern standard deviation (PSD) among the three groups.


RESULTS
After cataract surgery, MD significantly improved (Fisher protected least significant difference (PLSD): P < .05), but PSD did not change (analysis of variance (ANOVA): P = .94) compared with control values. There was no significant difference between the two IOLs for either MD (Mann-Whitney test; P = .15) or PSD (Mann-Whitney test; P = .84).


CONCLUSIONS
When interpreting the results of FDT, the effect of cataract should be considered but that of IOL color does not need consideration.
Ueda
Tetsuo
T
Department of Ophthalmology, Nara Medical University, Nara, Japan. tueda@naramed-u.ac.jp
Ota
Takeo
T
Yukawa
Eiichi
E
Hara
Yoshiaki
Y
D003116:Color; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D018918:Phacoemulsification; D012160:Retina / Q000502:physiology; D014792:Visual Acuity / Q000502:physiology*; D058609:Visual Field Tests / Q000379:methods*; D014794:Visual Fields / Q000502:physiology*