Standardization of Some of the Common Tests Used in Determining the Acuteness of Vision of School Children: A Thesis (Classic Reprint) - Hardcover

Joseph Madison McCallie

9780266397908: Standardization of Some of the Common Tests Used in Determining the Acuteness of Vision of School Children: A Thesis (Classic Reprint)

Hardcover

ISBN 10: 0266397905 ISBN 13: 9780266397908

Publisher: Forgotten Books, 2018

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Excerpt from Standardization of Some of the Common Tests Used in Determining the Acuteness of Vision of School Children: A Thesis

The picture tests were discarded because they were not and could not be constructed according to the Snellen measurements, consequently the results obtained could not be compared with results obtained by tests made with the Snellen letters.

The tests made were divided into two parts. The first had to do with the visibility of the illiterate E, supposed to be seen by the normal eye at no greater distance than 16 ft., as compared with the visibility of the Snellen letters constructed to be seen by the normal eye at no greater dis tance than 16 ft.

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