Jun-Hua Li1, Yi-Fan Feng2, Yun-E Zhao1, Yin-Ying Zhao1, Lei Lin1. 1. School of Ophthalmology and Optometry, the Eye Hospital of Wenzhou Medical University, Zhejiang Eye Hospital, Wenzhou 325000, Zhejiang Province, China. 2. Department of Ophthalmology, Zhongshan Hospital, Fudan University, Shanghai 200023, China.
Abstract
AIM: To evaluate contrast visual acuity (CVA) after implantation of an aspheric apodized diffractive intraocular lens (IOL) or a spherical apodized diffractive IOL in cataract surgery. METHOD: This prospective randomized controlled study with a 12-month follow-up compared the results of cataract surgery with implantation of an aspheric AcrySof ReSTOR SN6AD3 IOL (30 eyes) and a spherical AcrySof ReSTOR SN60D3 IOL (30 eyes). CVA with best distance correction was measured at 4 contrast levels (100%, 25%, 10% and 5%) under 3 levels of chart luminance [250, 85 and 25 candelas per square meter (cd/m(2))] using a multi-functional visual acuity tester (MFVA-100). RESULTS: At 12 months after surgery, there were no statistically significant differences in 100% CVA and 25% CVA under 250cd/m(2) (P 100%=0.875 and P 25%=0.057) and 85cd/m(2) (P 100%=0.198 and P 25%=0.193) between the aspheric group and the spherical group. However, the 10% CVA and 5% CVA were significant better in aspheric group than spherical group under 250cd/m(2) (P 10%=0.042 and P 5%=0.007) and 85cd/m(2) (P 10%=0.002 and P 5%=0.039). Under the luminance level of 25cd/m(2), no significant differences was found in the 100% CVA between the 2 group (P 100%=0.245), while aspheric group had better visual acuity in the remaining 3 contracts (P 25%=0.023, P 10%=0.026 and P 5%=0.002, respectively). CONCLUSION: [corrected] The aspheric AcrySof ReSTOR SN6AD3 IOL provided patients with better low-contrast visual acuity than the spherical AcrySof ReSTOR SN60D3 IOL.
RCT Entities:
AIM: To evaluate contrast visual acuity (CVA) after implantation of an aspheric apodized diffractive intraocular lens (IOL) or a spherical apodized diffractive IOL in cataract surgery. METHOD: This prospective randomized controlled study with a 12-month follow-up compared the results of cataract surgery with implantation of an aspheric AcrySof ReSTOR SN6AD3 IOL (30 eyes) and a spherical AcrySof ReSTOR SN60D3 IOL (30 eyes). CVA with best distance correction was measured at 4 contrast levels (100%, 25%, 10% and 5%) under 3 levels of chart luminance [250, 85 and 25 candelas per square meter (cd/m(2))] using a multi-functional visual acuity tester (MFVA-100). RESULTS: At 12 months after surgery, there were no statistically significant differences in 100% CVA and 25% CVA under 250cd/m(2) (P 100%=0.875 and P 25%=0.057) and 85cd/m(2) (P 100%=0.198 and P 25%=0.193) between the aspheric group and the spherical group. However, the 10% CVA and 5% CVA were significant better in aspheric group than spherical group under 250cd/m(2) (P 10%=0.042 and P 5%=0.007) and 85cd/m(2) (P 10%=0.002 and P 5%=0.039). Under the luminance level of 25cd/m(2), no significant differences was found in the 100% CVA between the 2 group (P 100%=0.245), while aspheric group had better visual acuity in the remaining 3 contracts (P 25%=0.023, P 10%=0.026 and P 5%=0.002, respectively). CONCLUSION: [corrected] The aspheric AcrySof ReSTOR SN6AD3 IOL provided patients with better low-contrast visual acuity than the spherical AcrySof ReSTOR SN60D3 IOL.
Authors: José F Alfonso; Luis Fernández-Vega; Cristina Puchades; Robert Montés-Micó Journal: J Cataract Refract Surg Date: 2010-05 Impact factor: 3.351
Authors: Jorge L Alió; Ana B Plaza-Puche; David P Piñero; Francisco Amparo; Jose L Rodríguez-Prats; María José Ayala Journal: J Cataract Refract Surg Date: 2011-04 Impact factor: 3.351
Authors: Robert Montés-Micó; Enrique España; Inmaculada Bueno; W Neil Charman; José L Menezo Journal: Ophthalmology Date: 2004-01 Impact factor: 12.079
Authors: Niels Erik de Vries; Carroll A B Webers; Frenne Verbakel; John de Brabander; Tos T Berendschot; Yanny Y Y Cheng; Muriel Doors; Rudy M M A Nuijts Journal: J Cataract Refract Surg Date: 2010-11 Impact factor: 3.351
Authors: José F Alfonso; Luis Fernández-Vega; M Begoña Baamonde; Robert Montés-Micó Journal: J Cataract Refract Surg Date: 2007-07 Impact factor: 3.351