Cloudscaper symbols demonstrate strong agreement with Snellen E chart measures in children, suggesting reliable visual acuity assessment.
Cloudscaper symbols provide a reliable tool for visual screening in children. Although they slightly underestimate visual acuity compared to LEA symbols - a finding also reported when comparing ETDRS letters with LEA symbols - Cloudscaper symbols show strong agreement with Snellen E chart measurements. This suggests that Cloudscaper symbols allow precise visual acuity assessment comparable to the gold standard.
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Ronconi et al. (2025) studied this question.
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