Rotational Asymmetric Multifocal Intraocular Lens - Use in Patient Undergoing Cataract Surgery

Introduction: A cataract is a clouding of the lens in the eye leading to a decrease in vision. Cataracts are the cause of half of blindness and 33% of visual impairment worldwide. Surgery with phacoemulsification followed by implantation of intraocular lens (IOL) is gold standard treatment for cataract. In some cases multifocal IOLs are used. This is the first published use of rotational asymmetric multifocal IOL in cataract surgery in Slovakia.

Method: In the study 78 eyes of 58 patients (mean age 62.3 years) were implanted for a cataract with the rotational asymmetric multifocal IOL. Corrected and uncorrected distance and near visual acuities were analysed preoperatively, 1 month and 6 months postoperatively. Contrast sensitivity was tested at 6 months postoperatively. The Friedman Two -Way Analysis of Variance and Multiple Comparison Test were used for all parameter comparisons, in all cases, the same level of statistical significance (p < 0.05) was considered significant.

Results: Average preoperative uncorrected distance visual acuity has increased from 0.32 to 0.87 and 0.93 respectively in 1 month and 6 months after surgery (p < 0.05, n = 78). Average preoperative uncorrected near visual acuity (UCNVA) has increased from 0.2 to 0.77 and 0.79 respectively in 1 month and 6 months after surgery (p < 0.05). Average preoperative best corrected distance visual acuity has increased from 0.65 to 0.95 and 1.03 respectively in 1 month and 6 months after surgery (p < 0.05). Significant improvement was found also between preoperative best corrected near visual acuity and UCNVA 1 and 6 month after surgery (p < 0.05).

In conclusion, the rotational asymmetric multifocal IOL LS-313 MF 30 provides good visual rehabilitation for near and distance vision after cataract surgery. Contrast sensitivity outcomes account for the patient satisfaction with this innovative IOL technology.