Comparing visual acuity in preschool children using the Lea symbols and Sheridan Gardiner charts | Zendy

Aghafekokhian B. Osaiyuwu | Zendy; George Nnamdi Atuanya | Zendy

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Comparing visual acuity in preschool children using the Lea symbols and Sheridan Gardiner charts

Author(s) -

Aghafekokhian B. Osaiyuwu,

George Nnamdi Atuanya

Publication year - 2015

Publication title -

african vision and eye health

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.186

H-Index - 5

eISSN - 2413-3183

pISSN - 2410-1516

DOI - 10.4102/aveh.v74i1.22

Subject(s) - visual acuity , chart , significant difference , medicine , snellen chart , optometry , vision test , ophthalmology , mathematics , statistics

Visual acuity measurement is a vital part of an optometric examination. The purpose of the present study was to compare visual acuity in preschool children using two charts – the Lea symbols chart and the Sheridan Gardiner chart. One hundred and fifty-three preschool children (72 boys and 81 girls) between the ages of 3 and 5 years (mean age and standard deviation 4.23 ± 0.78 years) were recruited from five randomly selected nursery schools. Distance visual acuity was measured monocularly and binocularly after a pre-test was done. An interval of 5 minutes was allowed for testing with both charts. The ages and sexes of each child were documented. Results showed a statistical difference in visual acuities using both charts (p < 0.05). There was also a statistical difference in both charts regarding age. There was no significant gender difference between the results from each chart

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