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Vision testing of young children in the age range 18 months to 4½ years
Author(s) -
EGAN DOROTHY F.,
BROWN ROSEMARY
Publication year - 1984
Publication title -
child: care, health and development
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.832
H-Index - 82
eISSN - 1365-2214
pISSN - 0305-1862
DOI - 10.1111/j.1365-2214.1984.tb00194.x
Subject(s) - test (biology) , matching (statistics) , age groups , key (lock) , medicine , psychology , demography , computer science , computer security , paleontology , pathology , sociology , biology
Summary Four hundred and twenty‐five normal children in the age range 18 months to 4½ years have been studied to determine the percentage of children according to age who can be expected to cooperate in a letter‐matching vision test using a key card; to see whether the use of plastic letters to replace the key card lowers the age at which a letter‐matching test can be achieved, and to show that children in this age range can do a vision test at 20ft (6m). Acceptance of occlusion using a patch occludcr was also examined. The study shows that children effectively begin to cooperate in letter‐matching vision tests using a key card from 33 months of age. Replacement of the key card with plastic letters lowers the age to 30 months and thereafter there is a gain of some 25% of children up to 39 months. All children were successfully tested at 20ft (6m). The most difficult age for occlusion was in the age group around the second birthday.