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January 15, 1898


Author Affiliations


JAMA. 1898;XXX(3):166-168. doi:10.1001/jama.1898.72440550035032

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In the department of ophthalmology no line of research in recent years has attracted so much attention as that pertaining to the extrinsic muscles of the eye. And in view of this rapidly growing importance of an accurate knowledge of the various anomalies of the ocular muscles, it becomes necessary to employ as aids in diagnosis instruments of the greatest precision and convenient of manipulation. This demand has been met in part by several devices invented for this purpose, but some of the best of these in frequent use have covered only a portion of the field of inquiry. Without offering any extended criticism on the very excellent instruments already introduced, I should like to present to the profession a phorometer, which in my judgment will combine every essential feature that could with reason be desired.

This instrument has been made for me by F. A. Hardy & Co. of

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