Publisher's Synopsis
Excerpt from A System of Ocular Skiametry, Including Such Portions of Optometry as Pertinent to the Use of the Shadow Test: With the Plane Mirror
It is with some timidity, both from a literary viewpoint and from that of a retailer of Spectacles and eyeglasses, and manufacturer of Optometrical devices, that this book is offered for the consideration Of those who adapt glasses to the eyes of others.
If it is true that necessity is the mother of invention, then perhaps it will be idle to Offer further excuses here. The author. However, desires to express his deep appreciation Of the work done by the many medical men who have enhanced the value of Sir William Paget Bowman's discovery of the phenomena now known as the Shadow Test. Especially is the author under Obligations to such writers as Dr. Edward Jackson and Dr. James Thorington for aid derived from their able monographs on this subject. But nearly all medical writers having, naturally, written from the standpoint Of physicians, that the use of a reliable cycloplegic is always indicated, it has remained for Opticians to devise ways and means for accurately applying the principles of this test with out resorting to the use of local toxicants of any kind.
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