Purpose:
To compare the effect of hydrophobic and hydrophilic acrylic intraocular lenses on contrast sensitivity function.
Method:
Fourty eyes of 40 patients who had cataract operation at least 3 years before were separated into two groups. The first group of 20 eyes had hydrophobic acrylic (Alcon Acrysof SA60AT) IOL implants and the second group of 20 eyes had hydrophilic acrylic (Lenstec Inc. Softec I) IOL implants. All patients underwent complete ophthalmologic examination including, anterior segment biomicroscopy, ocular fundus examination. In both group, the best corrected visual acuities were determined and the contrast sensitivity values of two groups at four spatial frequencies levels were compared by using Vector Vision CSV-1000 contrast sensitivity test system.
Results:
Mean logarithmic values of two groups were respectively in 3 cycle/degree spatial frequency 1.46(± 0.19) and 1.43(±0.19); in 6 cycle/degree spatial frequency 1.66 (± 0.25) and 1.65 (± 0.19); in 12 cycle/degree spatial frequency 1.35(± 0.24) and 1.31(± 0.21), in 18 cycle/degree spatial frequency 0.91(± 0.31) and 0.86(± 0.20). No statistically significant difference in contrast sensitivity function was found between the 2 groups (p>0.05).
Conclusion:
There was no statistically significant difference in contrast sensitivity function between hydrophobic (Alcon Acrysof SA60AT) and hydrophilic acrylic (Lenstec Inc.Softec I) IOL groups (p>0.05).
Keywords: Hydrophobic, hydrophilic, intraocular lens, contrast sensitivity