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A Prospective, Randomized Comparison of Three Partial Range of Field Intraocular Lenses Using a Mini-monovision
Kristof Vandekerckhove1, Mark Rabinovich1, David P Piñero2
1Vista Alpina Eye Clinic, Visp, Switzerland.
Summary
Three partial range of field intraocular lenses (PRoF IOLs) demonstrated excellent distance and intermediate vision with mini-monovision. AcrySof IQ Vivity offered superior near vision, while Isopure and Eyhance excelled in distance acuity.
Area of Science:
- Ophthalmology
- Refractive Surgery
- Biomedical Engineering
Background:
- Cataract surgery often involves intraocular lens (IOL) implantation to restore vision.
- Partial range of field (PRoF) IOLs aim to provide a broader range of vision compared to traditional monofocal IOLs.
- Mini-monovision is a surgical strategy to enhance depth of focus and reduce spectacle dependence.
Purpose of the Study:
- To compare the visual and refractive outcomes of three different PRoF IOLs.
- To evaluate the efficacy of a mini-monovision strategy with these IOLs.
- To assess distance, intermediate, and near visual acuity, defocus curves, and spectacle independence.
Main Methods:
- A single-center, prospective, randomized double-blind study.
- 105 patients received bilateral cataract surgery with Isopure, Tecnis Eyhance, or AcrySof IQ Vivity IOLs.
- Mini-monovision (-0.50 D in the non-dominant eye) was implemented, with assessments over 6 months.
Main Results:
- All IOLs provided excellent binocular uncorrected distance and intermediate visual acuity.
- AcrySof IQ Vivity showed significantly better binocular uncorrected near visual acuity.
- Vivity demonstrated superior defocus performance at -1.50 and -2.00 D, but worse monocular distance acuity.
- High spectacle independence for distance (≥85%) and intermediate (≥92%) tasks was observed.
Conclusions:
- All three PRoF IOLs are effective for achieving good distance and intermediate vision with mini-monovision.
- Vivity offers advantages in near vision and defocus, while Isopure and Eyhance may provide better distance vision.
- These PRoF IOLs offer functional near vision, though most patients still require some near correction.
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