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June 1933

The Opticians' Dispensing Manual.

Arch Ophthalmol. 1933;9(6):1021. doi:10.1001/archopht.1933.00830011045023

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While this book is intended primarily for those who are concerned with the grinding of lenses and the fitting and sale of various types of lenses and frames, it contains much information with which the ophthalmologist should have at least a cursory acquaintance. Moreover, as the author states in his preface, his theories can be applied with merely the aid of a pencil, cardboard, a caliper and a ruler.

The first chapters deal with Oxfords, spectacles and the adjusting of frames. While Mr. Hartinger seems overly fond of Oxfords, he is not unnecessarily prejudiced in their favor.

The chapters on lenses, transpositions and bifocals are of especial value, particularly those in which he mentions some impossible prescriptions that are received, such as decentering a cylinder with a horizontal axis to obtain the effect of a prism base in or base out.

His chapter on transposition of compound lenses

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