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¹Çukurova Üniversitesi, Göz Hastalıkları, Adana, Prof. Dr.
²Çukurova Üniversitesi, Medikososyal Merkezi, Adana, Uzm. Dr. Purpose: To compare the modulation transfer function (MTF), the root mean square (RMS) of higher order aberrations, and the point-spread function (PSF) values in 20 eyes in which multifocal apodized diffractive intraocular lenses (IOLs) (AcrySof® ReSTOR) and monofocal IOLs (AcrySof® Natural) were implanted.
Materials and Methods: In this comparative and prospective study, 10 patients (20 eyes) who underwent cataract surgery using phacoemulsification and IOL implantation were included. Two types of IOLs were used in this study. In Group 1 AcrySof® ReSTOR diffractive IOLs (model SN60D3, Alcon Research Ltd. Fort Worth, TX) were used, and in Group 2 AcrySof® Natural monofocal IOLs (model SN60AT, Alcon Research Ltd. Fort Worth, TX) were used. Mean age of the patients was 67.6±2.7 and 58.8±4.3 in Group 1 and Group 2, respectively. At the fourth postoperative week, PSF, MTF, and RMS measurements were obtained by Nidek optical pathway difference (OPD)-Scan (Nidek Co. Ltd. Jp.).
Results: Postoperative uncorrected visual acuities in all the eyes were 20/20. In Group 1 postoperative mean values were as follows: MTF: 0.426±0.165; PSF: 0.055±0.066; RMS 0.766±0.494. In Group 2 postoperative mean values were as follows: MTF: 0.388±0.168; PSF: 0.077±0.121; RMS: 0.899±0.616. There were no statistically significant differences in postoperative PSF, MTF, or RMS values between the two groups.
Conclusion: There was no significant difference in the visual quality outcome in terms of MTF, PSF, or RMS values in the eyes with AcrySof® ReSTOR diffractive (SN60D3, Alcon Research Ltd. Fort Worth, TX) and AcrySof® Natural monofocal (SN60AT, Alcon Research Ltd. Fort Worth, TX) IOLs. Keywords : Intraocular lenses (IOLs), diffractive IOLs, phacoemulsification