ArticleTaiwan journal of ophthalmology
Equivalent legibility font size for traditional Chinese character compared to early treatment diabetic retinopathy study near visual acuity.
Article in Taiwan journal of ophthalmology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed, 1 citations in OpenAlex.
- The normative measures for Chinese Reading Acuity Test (CRAT) in Cantonese-speaking children.Scientific reports · 2026Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposesTo investigate the legibility of a standardized logarithmic print size of traditional Chinese (TC) characters and compare it with Early Treatment Diabetic Retinopathy Study (ETDRS) near chart. MATERIALS AND
methodsA total of 1243 commonly used TC characters were chosen and divided into three groups according to its stroke complexity: Group A with 2-9 strokes, Group B with 10-17 strokes, and Group C with 18-25 strokes. For each group of characters, near charts were created using randomly chosen characters arranged in decreasing logarithmic size. In a well-illuminated room, healthy controls were fully corrected to test both ETDRS near chart and our set of TC near charts. The smallest legible font sizes (SLFS) in TC near charts were recorded and analyzed.
resultsForty-two healthy eyes (21 participants) (age 29 ± 8.9 years old) were included. The mean near best-corrected visual acuity (nBCVA) in ETDRS chart was 0.06 ± 0.05 logMAR. We found that the mean SLFS in TC charts (0.33 ± 0.09 logMAR) was significantly larger than the nBCVA in ETDRS chart (
conclusionAccording to our results, to recognize TC characters, normal-sight readers need a 0.22-0.30 logMAR (1.7-2.0 fold) enlargement of the acuity size measured by ETDRS near chart. The low-stroke TC charts may provide a new method to assess the postsurgical outcomes for comparable functional visual acuity in reading TC characters.
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