On insufficiency of the power of convergence / by E. Landolt.

  • Edmund Landolt
Date:
[1886]
Catalogue details

Licence: Public Domain Mark

Credit: On insufficiency of the power of convergence / by E. Landolt. Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

    11/26 page 193
    Three days after tenotomy of one external rectus 1 found P = 12 ) J ■ a = n m. a. | a= 14 m. a. (Fig. 3, right line.) Fig. 3. The asthenopia entirely disappeared, and after more than a year it was found that p = 12 r — — 2 Favourable results may thus be obtained from tenotomy even in cases where a decided diminution in the range of convergence is present, provided it be not excessive, and that the positive part only be affected (Fig. 2, C). But here advancement of the internal rectus appears also to answer very well. Case 2.—Post office employe, set. fifty. L : H = -75 D; V = -s - -6. R:H = -75 D; V= 7 Amplitude of accommodation = 2-5 D
    digitised image 1
    digitised image 2
    digitised image 3