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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| Format: | Government Document eBook |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Department of Health, Education, and Welfare, Public Health Service,
1963.
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| Series: | Vital and health statistics. Data evaluation and methods research ;
no. 1. Public Health Service publication ; no. 1000. |
| Subjects: | |
| Online Access: | https://purl.fdlp.gov/GPO/gpo140694 |
| Item Description: | "June 1963." |
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| Physical Description: | 1 online resource (4 unnumbered pages, 33 pages) : illustrations. |
| Bibliography: | Includes bibliographical references (page 16). |