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Naofumi Kita, Shuuichirou Eguchi, Humihiko Mori, Hidetaka Masahara, Seiji Takagi, Kazuhiro Oohashi, Eguchi Eye Hospital; Analysis of ocular higher-order aberrations and visual functions one month after implantation of four aspheric IOLs. Invest. Ophthalmol. Vis. Sci. 2014;55(13):3754.
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To compare the ocular higher-order aberrations and visual functions of the implanted four aspheric IOLs one month after surgery.
Patients who underwent 2.4mm small-incision phacoemulsification and implantation with SN60WF,ZCB00,NY-60 or W-60 and could be followed up at least 1 month were eligible for the study.Corneal, internal and ocular higher-order aberrations were measured with 6mm pupil size using KR-1W wavefront analyzer (TOPCON) before and 1 month after surgery. From the Zernike coefficient,we calculated root mean square of coma-like and spherical-like aberrations. Also, the change of the Zernike coefficient Z40 was evaluated. Other outcome measures were best corrected visual acuity (BCVA) and contrast sensitivity.
Seventy seven eyes of 54 patients were evaluated. Postoperative ocular spherical-like aberration of the W-6 group was statistically significantly higher than the other 3 groups.Except postoperative ocular spherical-like aberrration,there were no statistically significant differrences in higher-order aberrations, BCVA and contrast sensitivity among 4 groups. In terms of the Zernike coefficient Z4 0, 17% of the patients had negative ocular spherical aberration postoperatively.
Each four aspheric IOLs has negative spherical aberration,-0.20μm,-0.27μm,-0.18μm or - 0.13μm respsctively, but we couldn't find any differences in BCVA and contrast sensitivity among these IOLs. This study suggests that selecting aspheric IOLs randomly may not result in clinical differences.
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