Age-related normal limits for visual acuity and contrast sensitivity in different lighting conditions
A. Keuken, A. Subramanian, S. Mueller-Schotte, J. L. Barbur
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AbstractReduced (low) light levels cause significant changes in visual performance (Barbur & Stockman, 2010) which become increasingly noticeable as one ages and also in early-stage, retinal diseases (Owsley et al., 2016; Puell et al., 2012). Visual acuity measurements are common in clinical practice, however may not predict accurately visual performance in daily life. Contrast sensitivity is a better predictor of loss of spatial vision when the task involves detection of small spatial details in low contrast, but full, contrast sensitivity tests are rarely used in a clinical setting (Xiong et al., 2020). The ability to identify individuals with reduced functional vision during the early stages of disease, particularly when loss of spatial vision is more prominent in the mesopic range, may provide the opportunity to equip them with assistive or gerontechnological devices in a more timely manner. As a result, it is of interest to establish normal age-limits for monocular and binocular vision under photopic (daylight) and mesopic (low-light level) conditions so that we can reliably identify individuals with functional vision decline.Keywords: age-related normal limits, light conditions, visual performance
A. Keuken, A. Subramanian, S. Mueller-Schotte, J. L. Barbur (2024). Age-related normal limits for visual acuity and contrast sensitivity in different lighting conditions. Gerontechnology, 23(2), 1-1
https://doi.org/10.4017/gt.2024.23.s.956.opp