Enhanced monofocal IOLs yield similar visual function outcomes to monofocal lens
A recent study compared the clinical results achieved with the enhanced monofocal intraocular lenses (IOLs) with those of the monofocal IOL and investigated factors affecting the distance, intermediate, and near vision. Although the Tecnis Eyhance IOL provided significantly better binocular distance corrected intermediate functional visual acuity (BDCIFVA) than the Tecnis monofocal IOL in patients under 70 years of age, multiple regression analysis showed that age was the only factor affecting distance and intermediate visual function in eyes with the Tecnis Eyhance IOL. Gender, pupillary diameter, axial length, and average keratometry were not significant. There were no significant differences in subjective symptoms.
The study included patients who underwent bilateral consecutive cataract surgeries using the same IOLs with follow-up to 1 month postop. Refractions, monocular uncorrected distance visual acuity (UDVA) and corrected distance visual acuity (CDVA), and binocular distance-corrected functional visual acuity at 5 meters (BDCFVA), at 66 centimeters (BDCIFVA) and at 40 centimeters (distance corrected functional near visual acuity/DCNVA) were assessed. Multiple regression analysis was used to assess the factors affecting binocular BDCFVA, BDCIFVA, and binocular distance corrected near functional visual acuity (BDCNFVA). Subjective symptoms were assessed using the Near Activity Visual Questionnaire (NAVQ) and visual analogue scale (VAS).
Sixty patients (120 eyes) implanted with the Tecnis Eyhance IOL (30 patients, 60 eyes) or the Tecnis monofocal IOL (30 patients, 60 eyes) were included. The comprehensive cohort analysis did not confirm the advantage on the intermediate vision of the Tecnis Eyhance IOL. Younger age may be an important factor to benefit from the unique optical characteristics of this IOL, the researchers reported.
Reference:
Negishi K, Masui S, Ayaki M, Torii H, Yotsukura E, Nishi Y. Clinical Results and Factors Affecting Visual Function in Eyes Implanted with an Enhanced Monofocal Intraocular Lens. Clin Ophthalmol. 2023;17:3965-3973. doi:10.2147/OPTH.S438599
