Purpose: To investigate the factors affecting near vision spectacle dependence after mix-and-match implantation of the trifocal extended depth of focus (EDOF) and trifocal intraocular lens (IOL).
Methods: A total of 204 eyes of 102 patients who underwent mix-and-match implantation of one trifocal EDOF and one trifocal IOL were enrolled in this study. Patients were divided into two groups according to spectacle dependence for near vision: reading glasses and no glasses. Clinical characteristics were compared between the two groups and multivariate binary logistic regression analysis was performed to determine the odds ratio of factors potentially associated with the need for reading glasses.
Results: Eighty-one patients (79.4%) did not need reading glasses and 21 (20.6%) did. The mean age of the no glasses group (55.6 ± 5.6 years) was significantly higher than that of the reading glasses group (52.7 ± 4.1 years). Preoperative refractions were more myopic in the reading glasses group than in the no glasses group. The postoperative uncorrected near visual acuities were better and the satisfaction scores were higher in the no glasses group compared to the reading glasses group. Multivariate binary regression analysis revealed that only pre-operative spherical equivalent (odds ratio: 1.397; P = .025) was related to the spectacle independence for near vision.
Conclusions: Patients who had preoperative myopia and underwent mix-and-match implantation of trifocal EDOF and tri-focal IOLs tended to need spectacles for near vision. Surgeons should be aware of patients with myopia when considering mix-and-match implantation of trifocal EDOF and trifocal IOLs. [J Refract Surg. 2021;37(11):746-753.].