[Comparison of optical performance and stability of five different kinds of aspheric IOLs].
OBJECTIVE
To compare the optical performance and stability of different kinds of aspheric IOLs.


METHODS
It was a retrospective case series study. Five different kinds of aspheric IOLs were implanted into 130 eyes after cataract operation, including hydrophilic acrylic IOLs (AO, Bausch&Lomb), 25 eyes; hydrophilic acrylic IOLs (20H, Rayner), 20 eyes; 3-piece hydrophilic acrylic IOLs (PY60AD, HOYA), 30 eyes; acrylic IOLs (ZC, B00, AMO), 25 eyes; and 3-piece hydrophobic acrylic IOLs (Tecnis 9003, ZA9003, 30 eyes). Straylight on the retina was measured with C-quant. IOLs tilt and decentration were measured using Scheimpflug system (Pentacam, Oculus) and image-analysis was performed by Image-pro plus 6.0 software. Difference among groups was evaluated by analysis of variance (ANOVA). The relationship between straylight parameters and age, best corrected visual acuity (BCVA), inner HOA and MTF (HOA, high order aberration; MTF, Modulation Transfer Function) at different spatial frequencies was evaluated by Pearson correlation analysis.


RESULTS
The mean C-quant measurements for AO, 920H, PY60AD, ZCB00 and ZA9003 groups were 1.33 ± 0.69, 1.43 ± 0.57, 1.56 ± 0.43, 1.61 ± 0.56 and 1.71 ± 0.72, respectively, which showed no statistically significant differences (F = 0.593;P = 0.669). The straylight values in AO and 920H groups were significantly lower than that of ZCB00 and ZA9003 groups (t = 2.159, 3.271 and 2.286; P = 0.045, 0.013, and 0.046). The mean IOL decentration and tilt measurements in the 5 different groups showed no statistically significant differences (F = 4.016, 3.985; P = 0.056, 0.064).


CONCLUSIONS
There are no significant difference in straylight between 5 different types of aspheric IOL implanted within the lens capsules. All of them show satisfy stability. One-piece design and hydrophilic material IOLs provide better optical performance than that of 3-piece 2-point haptic design.
Clinical College of Ophthalmology of Tianjin Medical University, Tianjin 300020, China.
Xiao-jie
XJ
Xing
Xin
X
Tang
Hui
H
Song
D000368:Aged; D006801:Humans; D007910:Lenses, Intraocular; D008422:Materials Testing; D008875:Middle Aged; D019591:Pseudophakia; D012189:Retrospective Studies; D016896:Treatment Outcome; D014792:Visual Acuity