Comparison of Two Vision-Testing Devices
Public Domain
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June 1963
File Language:
English
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Description:This report presents the findings from a research study of visual acuity testing conducted by the Pennsylvania State College of Optometry under contract with the U.S. National Health Survey. ; The purpose of the study was: ; 1. to determine the comparability between ; the test results that might be expected ; from the two American Optical Company ; Sight-Screener instruments used in the ; first cycle of the Health Examination ; Survey, and ; 2. to obtain information on the comparability of results from the Sight-Screener instruments and an improved Snellen-type test on a population whose visual acuity was no better than that which ; might be expected in the general adult ; population reached through the first ; cycle of the Health Examination Survey.
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Source:Other NCHS Survey or Data System
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Pages in Document:41 pdf pages
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Issue:2
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Main Document Checksum:urn:sha-512:e68e9997bcf16303f9e652299efc8e28dba4f22b27b94be5029343b3f195607302992bdedaccc50a7f5934a2c5d434ae8ef68ae596ec54284f0d76bf5c6ae221
File Language:
English
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