Comparison of visual performance after two pseudoaccomodative intraocular lens implantation

Abstract

Objective To compare the visual performance of accommodative IOLS and that of multifocal IOLs implantation after phacoemulsification. Methods A total of 40 eyes from 30 patients undergoing phacoemulsification received intraocular lens based on the principle of voluntary. Ten eyes from 20 patients who had implantation of Tetraflex accommodative intraocular lens were randomized into group 1. Thirty eyes from 20 patients who had implantation of +3.0 aspheric ReSTOR multifocal intraocular lens were randomized into group 2. Main outcome measures included best corrected distance visual acuity, distance corrected near vision, near point, intermediate vision, and the accommodation amplitude. All the clinical data were obtained at 6months postoperatively. Results No patients had undergone any complications. At 6 months postoperatively,best corrected distance visual acuity were similar between the groupl and group2 (-0.23± 0.09LogMAR versus-0.14 ± 0.08LogMAR, P =0.085). Distance corrected near vision were similar between the two groups (J3/40cm versusJ1/35cm, P =0.035). Subjective near point were similar between the two groups [(39± 10) cm versus (35± 9) cm F=0.065, P=0.80]. The accommodation amplitude were similar between the two groups [(1.94± 0.13)D versus (2.08± 0.63)D, P =0.093]. The defocus line showed a double-peak in group 2 and single peak in group 1 which declined at intermediate distance. Conclusions Both accommodative IOLs and multifocal IOLs can correct presbyopia effectively after operation. It is best to prefer the proper IOLs for patients. Key words: Accommodative intraocular lens; Multifocal intraocular lens; Accommodative amplitude