Is the human eye changing its form under the influence of modern education? / Edward G. Loring.

  • Loring, Edward G. (Edward Greeley), 1837-1888.
Date:
1878
Catalogue details

Licence: Public Domain Mark

Credit: Is the human eye changing its form under the influence of modern education? / Edward G. Loring. Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

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    9] The second diagram* shows the investigations of Dr. Eris- lann on 4,358 eyes of the scholars in the schools of St. Peters- urg, where precisely the same thing occurs, only the myopia iserfrom 13.6 to 43.3 per cent. The third diagram shows th'e RUSSIAN. 4 o\ 1 JET SH TTTTT ivestigations of Dr. Conrad on 3,036 eyes of school children Konigsbui-g. Here the percentage of myopia rises from 1.1 in the youngest, to the enormous amount of 62.10 in the iighest. Tliese results might also be reinforced by those of Reuss, in 'ienna, on 1,050 pupils, where the rise was from 33 to 60 per int., and by Dr. Pfleuger, of Lucerne, where the rise in near- * It will be Been that in the Ruasian and German diagrams, the progression I the foot of the chart is not as to ages, as in the American, but by classes, ut as the successive classes of the one cdrrespond almost exactly with the ocessive ages of the other, this can make no practical difference. As it is le results of the school term, that is, from 6 to 21 years, which interests s here, the comparison between the countries is a fair one.