Visual Outcome after the Implantation of a Trifocal Diffractive Multifocal Intraocular Lens: Results of a Presbyopic and Cataract Population in a Private Practice Setup

Purpose: To evaluate outcome of a trifocal diffractive multifocal Intraocular Lenses (MIOL) in presbyopic lens exchange and cataract surgery in a single center private practice set up. Patient and Methods: One hundred and thirteen AT Lisa Tri trifocal MIOL were implanted in 80 patients aged 53.7 ± 5.74 years. Follow up was done at 1, 6 and 12 months. Uncorrected distance, intermediate and near acuity were evaluated. Results: Uncorrected distance visual acuity (UCDVA) was preoperatively 0.47 ± 0.31. Average uncorrected distance/intermediate/ near visual acuity (UCD/I/NVA) postoperatively were 0.86 ± 0.14/0.44 ± 0.1/0.73 ± 0.12 at 1 month, 0.83 ± 0.18/0.45 ± 0.1/0.73 ± 0.12 at 6 months and 0.84 ± 0.14/0.40 ± 0.1/0.68 ± 0.16 at 12 months. Postoperative refractive outcome correlated significantly with lower UCDVA when the residual astigmatism was greater than 1 diopter. Conclusions: In a private practice set up trifocal MIOL outcome was satisfactory in a predominantly presbyopic age group especially for uncorrected distance and near visual acuity. Residual corneal astigmatism had a significant impact on uncorrected visual acuity for distance.