Tests and studies on the ocular muscles / by Ernest E. Maddox.

  • Maddox, Ernest E. (Ernest Edmund), 1860-1933.
Date:
1898
Catalogue details

Licence: Public Domain Mark

Credit: Tests and studies on the ocular muscles / by Ernest E. Maddox. 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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    The heads of the pins blend, and by rotating one till the pins form a continuous straight line, the latent torsion is measured. To measure the amplitude of torsion, similar discs are used, but with a complete diameter, instead of a radius (Fig. 104), marked on each. These diameters are fused, and by rotating both in opposite directions till they begin to separate the strength of the faculty of fusion is measured. Dr. Stevens finds the amplitude of extorsion for each eye to be n°, and that of intorsion to be