EVALUATING THE OUTCOMES OF PHACOEMULSIFICATION WITH ENHANCED MONOFOCAL EXTENDED DEPTH OF FOCUS INTRAOCULAR LENS IMPLANTATION: A CASE SERIES REPORT
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Abstract
Objective: Evaluate the outcomes of phacoemulsification surgery with enhanced monofocal extended depth of focus intraocular lens implantation and some related factors.
Subjects and research methods: Descriptive case series study on 20 eyes that underwent monofocal extended depth of focus RayOne EMV intraocular lens implantation surgery at the Vietnam National Institute of Ophthalmology from August 2025 to April 2026. Adult patients aged 50 years and older, eligible for cataract surgery and having corneal astigmatism <2.0 diopters (D), were implanted with RayOne EMV intraocular lenses in both eyes and followed up for 3 months. The outcome evaluation indices include refraction, uncorrected distance visual acuity, corrected distance visual acuity (CDVA), uncorrected intermediate visual acuity, distance-corrected intermediate visual acuity (DCIVA), uncorrected near visual acuity and satisfaction level. Visual symptoms such as glare, halos were interviewed after 3 months. Quality of life was evaluated using the VF14 questionnaire.
Results: The study included 20 eyes of 10 patients. At 3 months postoperatively, the median spherical equivalent refraction was -0.5 (-0.5 – -0.25). The mean uncorrected distance visual acuity (UDVA) in LogMAR was 0.155 ± 0.113, with all eyes within the range of ≤0.4; the mean binocular corrected visual acuity was 0.083 ± 0.0640. At intermediate distance, 70% of patients could read ≤0.3 and 100% of patients ≤0.5 LogMAR. The mean uncorrected near visual acuity (UNVA) in LogMAR was 0.328 ± 0.128. For 5 cases of intraocular lens selection using the mini-monovision method, the mean values were: 0.095 ± 0.0820 (range 0.0, 0.3) LogMAR for distance visual acuity, 0.115 ± 0.1097 (range 0.0, 0.4) for intermediate visual acuity, and 0.24 ± 0.099 for near visual acuity. Satisfaction levels were good, with 90% at intermediate distance and 80% of patients for near and distance visual acuity.
Conclusion: RayOne EMV intraocular lens combined with Mini-Monovision power calculation strategy is a safe, effective solution, providing a broad spectrum of visual acuity and well-tolerated with underlying ocular pathologies.
Keywords
Monofocal extended depth of focus intraocular lens, mini-monovision, Rayone EMV, visual outcomes.
Article Details
References
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