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Assessing static balance control improvement following cataract surgery using a smartphone.
Lorrana de Souza Azevedo1, Newton Quintino Feitosa2, Enzo Gabriel Rocha Santos3
1Faculdade de Medicina, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, Brazil.
Digital Health
|January 20, 2025
Summary
Smartphone accelerometers can effectively measure balance improvements after cataract surgery. This technology aids in assessing visual impairment recovery and fall risk reduction in elderly patients.
Area of Science:
- Ophthalmology
- Biomedical Engineering
- Geriatrics
Background:
- Cataracts are a leading cause of vision loss in older adults, increasing fall risk.
- Cataract surgery improves vision and balance, but objective balance assessment is crucial.
- Smartphone accelerometers offer a novel, accessible method for balance evaluation.
Purpose of the Study:
- To compare static balance control using smartphone accelerometers before and after cataract surgery.
- To assess the efficacy of cataract removal in improving visual acuity and balance.
- To explore the utility of inertial sensors in monitoring balance recovery.
Main Methods:
- 29 participants with bilateral cataracts underwent surgery.
- Visual acuity and static balance (eyes open/closed) were measured using smartphone accelerometers pre- and post-surgery.
- Quantitative balance parameters were analyzed and compared.
Main Results:
- Significant improvement in visual acuity was observed post-surgery.
- Static balance parameters showed significant improvement with eyes open.
- Limited improvement in balance was noted under closed-eye conditions.
Conclusions:
- Smartphone inertial sensors are practical tools for assessing static balance changes due to cataracts.
- This technology can effectively evaluate balance recovery post-cataract surgery.
- Smartphone-based balance assessment aids in monitoring visual impairment rehabilitation.

