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In this well known book, all the tests applicable to various methods and instruments used in refraction are given in detail and well explained. The chapter on muscles deals chiefly with phorias, paralysis of the eye muscles being only enumerated. The author describes his own method of exercising ocular muscles. The book is a satisfactory outline of refraction and should be as well received as the first edition.
Refraction of the Human Eye and Methods of Estimating the Refraction Including a Section on the Fitting of Spectacles and Eye-Glasses.. JAMA. 1930;95(24):1858. doi:10.1001/jama.1930.02720240068037