Accuracy of Some Korean Test Charts and "Hahn's New Test Chart".
- Author:
Chun Suk HAHN
1
Author Information
1. Hahn Eye Clinic, Koreaw.
- Publication Type:Case Report
- From:Journal of the Korean Ophthalmological Society
1967;8(1):51-54
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The test types used in three Korean test charts and "Hahn's New Test Chart" were measured in detajl to determine the accuracy with a caliper and micrometer which minimal limit of measurement was 1/10,000 inch. The rate of accuracy of three Korean test charts was noted as 82.3%, 72.8%, and 77.2% each, whereas that of the Hahn's New Test Chart was 98.9%.
