Visual acuity and pseudoaccommodation after apodized diffractive multifocal intraocular lens implantation

Objective To evaluate visual quality and pseudoaccommodation in patients after the implantation of an apodized diffractive multifocal intraocular lens (MIOL). Methods Forty patients (46 eyes) with age-related cataract were divided into two groups. GroupⅠwas the multifocal group: 20 cases (23 eyes),ReSTOR SA60D3 MIOL was implanted after phacoemulsification; Group Ⅱ was the monofocal group: 20 cases (23 eyes),Natural SN60AT monofocal intraocular lens (SIOL) was implanted after phacoemulsification. Measurements were taken at 1 week and 3 months postoperatively,including uncorrected distance visual acuity (UCDVA),best-corrected distance visual acuity (BCDVA),uncorrected near visual acuity (UCNVA),best-corrected near visual acuity (BCNVA),distance-corrected near visual acuity (DCNVA) and pseudoaccommodation. Results UCDVA and BCDVA in the multifocal group were not statistically different from the monofocal group (P0.05). The proportion of patients that achieved a UCDVA of 0.5 or better was 95.65% in both groups at 3 months postoperatively. UCNVA and DCNVA were statistically better in the multifocal group compared to the monofocal group (P0.05). A higher proportion in the multifocal group achieved 0.5 or better uncorrected near visual acuity and 0.5 or better best distance-corrected near visual acuity than in the monofocal group (69.57% versus 4.35%,69.57% versus 13.04%). Compared to the monofocal group,the multifocal group had better pseudoaccommodation (P0.05) (-3.54±1.05)D versus (-1.65±0.68)D. Conclusion The AcrysofReSTORapodized diffractive multifocal intraocular lens may provide excellent distance and near visual acuity,better pseudoaccommodation and improved quality of life for patients after phacoemulsification.