Development of visual acuity in preschool children as measured with Landolt C and Tumbling E charts
YH Lai, HZ Wang, HT Hsu - Journal of American Association for Pediatric …, 2011 - Elsevier
PURPOSE: To investigate the visual acuity development as measured by Landolt C and
Tumbling E charts (“C chart” and “E chart”) in preschool children. METHODS: Visual acuity
measurements of healthy children ages 3-6 years who had been evaluated with the use of E
charts (during kindergarten screening) and C charts (in a hospital setting) from 2005 to 2007
were studied. Inclusion criteria were hyperopia< 4.5 D, myopia< 3.0 D, astigmatism< 2.0 D,
and anisometropia< 2.0 D. The best-corrected visual acuity (BCVA) in each group was …
Tumbling E charts (“C chart” and “E chart”) in preschool children. METHODS: Visual acuity
measurements of healthy children ages 3-6 years who had been evaluated with the use of E
charts (during kindergarten screening) and C charts (in a hospital setting) from 2005 to 2007
were studied. Inclusion criteria were hyperopia< 4.5 D, myopia< 3.0 D, astigmatism< 2.0 D,
and anisometropia< 2.0 D. The best-corrected visual acuity (BCVA) in each group was …
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