While walking performance is similar between groups in normal light, poor ambient lighting results in decreased foot placement accuracy in older adults with AMD. Improper foot placement while walking can lead to a fall and possible injury. Thus, to improve the mobility of those with AMD, strategies to enhance the environment in reduced lighting situations are necessary.
Minor AMD-specific changes in movement are seen during curb negotiation. However, attenuated lighting greatly impacts curb ascent and descent, regardless of eye disease, which manifests as a cautious walking strategy and may increase the risk of falling. Environmental enhancements that reduce the deleterious effects of poor lighting are required to improve mobility and quality of life of older adults, particularly those with AMD.
Glaucoma significantly disrupts gaze-foot coordination and results in less accurate foot placement when precision is required during walking. This may increase the risk of trips and falls in this population.
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