Dynamic skiametry in theory and practice

Catalogue Number: 478
Dynamic skiametry in theory and practice
Category: Book
Sub-Category: Book of historical note
Author: CROSS, Andrew Jay
Year Of Publication/Manufacture: 1911
Time Period: 1900 to 1939
Place Of Publication/Manufacture: New York
Publisher/Manufacturer: A Jay Cross Optical Company
Description Of Item: Original black cloth, 223 pages, 71 illustrations
Historical Significance: Andrew Cross (d 1925) was an optometrist. The book describes the techniques of dynamic retinoscopy and has notes on the Geneva retinoscope. Mr. Cross was dubbed the "Grand Old Man of Optometry." He is most famous for devising an improved method of skiametry. As a practising refracting optician around the turn of the century, Mr. Cross had grown dissatisfied with static skiametry, which had been in wide use for more than 40 years. That technique, which required cycloplegia to mitigate accommodation, was time-consuming and discomforting for the patient. Instead, Mr. Cross developed dynamic skiametry. This method of retinoscopy, in which the patient focussed on a near object of fixation, required no drugs, making it quick and convenient. In 1895, he helped form the Optical Society of the State of New York, the country's first optometric organisation. A few years later, he was a founding member of what would become the American Optometric Association, and later served as the group's second president. He and his colleagues introduced the nation's first optometry bill in the New York state legislature in 1896. After years of lobbying efforts, the bill finally became law in 1908.Source: http://www.revoptom.com/archive/resource/visionaries.htm
Condition: Fine except for old VCO Library stickers on spine
Location: Archive room. East wall. Books of historical note

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