ArticleBMC ophthalmology2026
The association between objective visual quality, retinal structure, and dynamic visual acuity.
Article in BMC ophthalmology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundThe dynamic visual acuity (DVA) is crucial to assess dynamic visual function in clinical ophthalmology. The impact of objective ocular parameters on DVA remained unknown, which limits the clinical applicability and interpretability of the DVA test. Thus, the present research aims to investigate the impact of objective visual quality and retinal structure on DVA.
methodsHealthy young myopic adults aged 18 to 35 years were recruited. Binocular dynamic visual acuity (DVA) was evaluated at a 1-meter distance with habitual spectacles. The test comprised four sequential assessments of horizontal motion DVA at increasing velocities of 20, 40, 60, and 80 degrees per second (dps). Modulation transfer function (MTF) and higher-order aberrations (HOA) were measured to evaluate visual quality. Retinal structure, including retinal thickness and capillary density in the optic disc and macula was measured with optical coherence tomography angiography (OCTA).
resultsThirty participants were enrolled with a mean age of 23.0 ± 3.7 years. DVA differed significantly across velocities (P < 0.001). DVA at 20 dps (r = -0.537, P = 0.002) and 60 dps (r = -0.430, P = 0.018) were negatively correlated with the binocular mean sphere. DVA at 20 and 60 dps was significantly associated with MTF value from 5 to 30 cycle/degree (c/d), and 80 dps DVA was associated with MTF value at spatial frequencies from 10 to 20 c/d (P < 0.05, respectively). The Z9 aberration showed a positive association with DVA at 20 dps (P = 0.047), and the Z7 aberration showed a significant positive association with DVA at 80 dps (P = 0.030). Limited associations were observed between DVA and retinal thickness or capillary density in the optic disc and macula.
conclusionsIn healthy myopic adults, better objective visual quality, as measured by MTF, might be associated with better DVA at both low and high speeds, whereas retinal structural parameters had a limited association with DVA. The conclusions are limited by applicating habitual spectacle during the DVA test, which precludes full quantification of optical confounding.
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