Comparison of high order aberrations in pseudophakia with spherical intraocular lens and aspheric intraocular lens implantation.
- TIAN Jing, LIAO Xuan, LAN Changjun, TAN Qingqing, LIN Jia, WEN Baiwei
JOURNAL OF SHANDONG UNIVERSITY (OTOLARYNGOLOGY AND OPHTHALMOLOGY). 2017, 31(4):
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Objective To compare the corneal, internal, and ocular high order aberrations(HOAs)in pseudophakia of spherical intraocular lens(IOL)with aspheric IOL implantation, and to provide evidence for individual selection of aspheric IOL. Methods A prospective, non-randomized, controlled clinical study was conducted on 112 age-matched cataract patients(160 eyes). Patients were divided into four groups, and implanted with AMO Sensor AR40 IOL(group AR40, 40 eyes of 26 patients), AMO Tecnis ZA9003 IOL(group ZA9003, 40 eyes of 31 patients), Bausch & Lomb SofPort AO IOL(group AO, 40 eyes of 28 patients), or Alcon SN60WF IQ IOL(group IQ, 40 eyes of 27 patients). The corneal, internal, and ocular HOAs including total HOA(tHOA), spherical aberration(SA), coma, and trefoil were measured at three months postoperatively with a pupil diameter(PD)of 4 mm or 6 mm. Result There were no statistically significant differences in postoperative uncorrected visual acuity and best corrected visual acuity, and in postoperative corneal tHOA, SA, coma, and trefoil at 4 mm or 6 mm PD among the four groups. At 4 mm PD, there were significant differences in internal SA and coma but no differences in tHOA and trefoil; at 6 mm PD, there were significant differences in internal tHOA, SA, and coma but no differences in trefoil. In addition, there were significant differences in ocular tHOA and SA but no differences in coma and trefoil at 4 mm or 6 mm PD among the four groups. Conclusion Phacoemulsification of the cataract and implantation of an aspheric IOL can reduce corneal SA, resulting in enhanced visual quality. For aspheric IOLs with other SAs, the predictability of corneal SA is exact, which provides a clinical basis for personalized implantation of aspheric IOLs.