Comparison of two vision-testing devices
a study to compare visual acuity as measured by the sight-screener and the Sloan letter chart.
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Publication
1963 - , Washington, No place, unknown, or undetermined
Language
English
Word Count
8,250 words, Guess
Page Count
33 pages
Identifiers
- Library of Congress Control Number63061989
- OCLC Control Number288639
- Open LibraryOL5901456M
Classifications
- LCCRA409 .U45 no. 1
Subjects
Series Statement
- Vital and health statistics.
- no. 1
Other Editions
- Comparison of two vision-testing devices: a study to compare visual acuity as measured by the sight-screener and the Sloan letter chart.
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