Clinical outcomes and functional visual performance: comparison of the ReSTOR apodised diffractive intraocular lens to a monofocal control

Aims: To compare clinical outcomes of patients bilaterally implanted with SN60D3 intraocular lenses (IOLs) with outcomes of bilateral monofocal controls, and to determine the validity of implanting an apodised diffractive lens in a healthy patient population. Methods: Six unmasked US investigators prospectively enrolled 72 patients aged (70 years with bilateral cataracts in otherwise healthy eyes. Patients underwent routine cataract extraction via phacoemulsification with SN60D3 implantation. Visual outcomes were assessed 1 week, 1 month and 6 months postoperatively. Patients completed two subjective surveys. As controls, 51 patients who were 6 months postoperative to bilateral implantation of AcrySof monofocal IOLs also were assessed. Results: Corrected and uncorrected distance visual acuity was similar across groups. For uncorrected near and intermediate visual acuity, statistically significant differences were found favouring the SN60D3 group (p<0.0001). Contrast sensitivity was significantly better in monofocal patients at 6 cpd and 18 cpd under various lighting conditions. The Functional Evaluation and the Questionnaire demonstrated that SN60D3 patients achieved significantly higher levels of functional vision and spectacle freedom (p<0.0001). Conclusion: Despite mildly decreased contrast sensitivity when compared with a monofocal IOL, the SN60D3 provided high patient satisfaction, excellent functional vision, and high rates of spectacle freedom.