Comparison of Postoperative Visual Acuity and Visual Quality Among Vision Enhancing Bifocal Intraocular Lenses (AM4UH), Bifocal IOLs, and Monofocal IOLs.

OBJECTIVE

To compare visual acuity and visual quality after implantation of Vision Enhancing bifocal intraocular lens (IOL), bifocal IOL or monofocal IOL in patients with age-related cataract.

METHODS

Retrospective study. Group A was implanted with Vision Enhancing bifocal (bifocal combined extended depth of focus (EDOF)) IOL (Eyebright Medical Technology (Beijing) Co. Ltd. China: AM4UH, 21 eyes), group B was implanted with bifocal IOL (Johnson & Johnson, USA: ZMB00, 21 eyes), and group C was implanted with monofocal IOL (Eyebright Medical Technology (Beijing) Co. Ltd. China: A1UL22, 21 eyes). At 3 months postoperatively, uncorrected distance visual acuity (UDVA) was compared among 3 groups, while uncorrected near visual acuity (UNVA) and uncorrected intermediate visual acuity (UIVA), defocus curves, and visual quality questionnaire results were compared between Group A and B.

RESULTS

There was no statistically significant difference in UDVA among three groups postoperatively (P > 0.05); in terms of UIVA and UNVA, group A was better than group B (P < 0.05); the defocus curves showed that group A was close to bimodal but tended to be flat, while group B was bimodal; groups A and B became spectacle-independent postoperatively, and 40% of patients in group B reported the halo phenomenon, especially when driving at night.

CONCLUSION

Vision Enhancing bifocal IOL (AM4UH) exhibited a better UIVA and UNVA, indicating a continuous visual range. And patients implanted with AM4UH achieved postoperative spectacle independence, with less visual disturbance.