Visual outcome, optical quality, and patient satisfaction with a new monofocal IOL, enhanced for intermediate vision: preliminary results

Abstract

Purpose: To compare visual outcomes, contrast sensitivity, optical quality, spectacle independence, and visual disturbances in patients implanted with 2 models of monofocal intraocular lenses (IOLs). Setting: Eye Clinic, Department of NEUROFARBA, University of Florence, Italy. Design: Prospective case series Methods: Patients without ocular comorbidities and corneal astigmatism less than 0.75 diopters (D) had cataract surgery with bilateral implantation of either of 2 monofocal IOLs, the Tecnis ZCB00 or the Tecnis Eyhance ICB00 (Johnson & Johnson Vision Care, Inc.). Six months postoperatively, monocular and binocular uncorrected and corrected (at 4 m) distance visual acuities, as well as uncorrected (UIVA), distance corrected, and corrected intermediate (at 66 cm) and near (at 40 cm) visual acuities were measured. Photopic contrast sensitivity, binocular defocus curve, objective scatter index (OSI), Strehl ratio, modulation transfer function (MTF) cutoff, halo and glare perception, and spectacle independence were also evaluated. Results: A total of 80 eyes of 40 patients were evaluated in this study. Although monocular and binocular uncorrected and corrected distance and near visual acuities were similar between groups, monocular and binocular UIVA were significantly higher in the Eyhance group. There were no statistically significant differences between the 2 groups in terms of photopic contrast sensitivity, OSI, MTF cutoff, Strehl ratio, and glare and halo perception. The ICB00 IOL provided better spectacle independence than the ZCB00 IOL for intermediate distance. Conclusions: In patients without ocular comorbidities, the Eyhance ICB00 IOL provided better UIVA and higher intermediate spectacle independence without impairment of far vision and visual quality, compared with the ZCB00 IOL.

Enhancing the Intermediate Vision of Monofocal Intraocular Lenses Using a Higher Order Aspheric Optic

“…Furthermore, the authors reported that no significant differences between the two groups were found in photopic contrast sensitivity, Ocular Scatter Index, MTF cut-off, Strehl ratio, glare, and halo perception. 24 These clinical outcomes confirm the results reported in our study and, therefore, further validate the methodology herein used.…”

“…25 The results showed that patients implanted with the new lens design were more spectacle independent for intermediate than those implanted with the standard aspheric monofocal IOL; 20% of the patients implanted with the new lens design reported the need for intermediate correction in their everyday life versus 90% of the patients implanted with the standard aspheric monofocal IOL. 24 Additionally, the patients implanted with the new lens design reported a lower frequency of use of spectacles compared to the patients implanted with the standard aspheric monofocal IOL. Therefore, the gain of 0.1 logMAR at intermediate provided by this new lens design translates into a functional benefit for patients undergoing standard cataract surgery.…”

“…Mencucci et al 24 recently published the clinical outcomes of patients implanted with this new lens design as compared to patients implanted with the TECNIS aspheric monofocal IOL. Their clinical study confirmed the predicted gain of approximately 0.1 logMAR at intermediate and comparable visual acuity at distance when compared to the aspheric monofocal IOL that fully compensates for corneal primary spherical aberration.…”

“…In an effort to quantify the functional benefits of the visual gain at intermediate distance provided by this new lens design, Mencucci et al 24 also evaluated spectacle independence using a self-reported, binocular subjective questionnaire: the Patient Reported Spectacle Independence Questionnaire. 25 The results showed that patients implanted with the new lens design were more spectacle independent for intermediate than those implanted with the standard aspheric monofocal IOL; 20% of the patients implanted with the new lens design reported the need for intermediate correction in their everyday life versus 90% of the patients implanted with the standard aspheric monofocal IOL.…”

Clinical safety and efficacy of a hydrophilic acrylic intraocular lens in a real-world population: a 1-year follow-up retro-prospective study

“…As seen in this paper, it resulted in a significant number of patients with comorbidities reflecting a true real-life scenario. In general, our preoperative visual acuity was worse than in other clinical trials evaluating monofocal IOLs and the sample size by far greater [13][14][15]. Another limitation of this study regards safety aspects and the absence of data available for preoperative endothelial cell count.…”