2019 年 62 巻 3 号 p. 101-106
Purpose: To identify predictive factors for postoperative uncorrected visual acuity (UCVA) following diffractive multifocal intraocular lens implantation. Subject and Method: Forty five eyes of 28 patients who underwent cataract surgery with diffractive multifocal intraocular lens TECNIS® ZMB00 (AMO) implantation from January 2015 to March 2018 were included. We formed two groups randomly with 18 eyes of 11 patients defined as the training set for preoperative factors and 27 eyes of 17 patients defined as the validation set for postoperative effects. All eyes had undergone superior corneal incisions of 2.4 mm. The predictive factors included age, mean corneal refractive power, corneal astigmatism, spherical equivalent, coma and spherical aberration of cornea, depth of angle recess, mesopic and photopic pupil diameters, PDist and MDist (distances from the alignment light to the photopic and the mesopic pupil centers, respectively). The good-UCVA group was defined as patients who had logMAR ≦ 0 one month after the surgery. Independent-related factors were identified by stepwise logistic regression analyses. Results: Only PDist was adopted (P = 0.0108) in the training set. The area under the curve (AUC) of the receiver operating characteristic (ROC) curve was 0.91. In the validation set, it had a sensitivity of 66%, a specificity of 100% and a cut-off value of 0.23. Conclusions: It is supposed that distances from the alignment light to the PDist influence the postoperative UCVA following multifocal diffractive intraocular lens implantation.
