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Visual function and mobility after multifocal versus monofocal intraocular lens implantation
Courtney D Hall1,2, Claire S Barnes3, Audrey H Gutherie4
1Hearing and Balance Research Program, James H. Quillen VA Medical Center, Mountain Home, TN, USA.
Clinical & Experimental Optometry
|March 17, 2021
Summary
Choosing intraocular lenses impacts vision and mobility. Monofocal lenses offer better contrast sensitivity, while multifocal lenses may reduce fall risk in older adults.
Area of Science:
- Ophthalmology and Geriatric Medicine
- Visual Function and Mobility Assessment
Background:
- Fall risk is elevated in older adults, potentially influenced by visual aids.
- Limited data exists on mobility differences between monofocal and multifocal intraocular lens (IOL) wearers.
- This study investigates visual function, fall risk, and balance in patients with bilateral IOL implantation.
Purpose of the Study:
- To compare visual function, fall risk, and balance control between monofocal and multifocal IOL recipients.
- To inform clinical decisions regarding IOL selection based on visual and mobility outcomes.
Main Methods:
- Cross-sectional study of adults with bilateral monofocal or multifocal IOLs.
- Assessment of visual acuity, contrast sensitivity, depth perception, and glare sensitivity.
- Evaluation of physical performance including gait speed, balance (Dynamic Gait Index), and virtual wayfinding.
Main Results:
- Monofocal IOL group demonstrated significantly better contrast sensitivity at intermediate and high spatial frequencies.
- Monofocal IOL group showed less contrast sensitivity reduction under glare conditions.
- Multifocal IOL group achieved significantly better Dynamic Gait Index scores, indicating improved mobility.
Conclusions:
- Monofocal IOLs provide superior contrast sensitivity compared to multifocal IOLs.
- Multifocal IOLs are associated with better mobility performance and potentially lower fall risk.
- IOL choice may involve a trade-off between visual clarity and mobility-related fall risk.
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