Atlas and epitome of operative ophthalmology / by O. Haab ; edited by G. E. de Schweinitz.

  • Haab, O. (Otto), 1850-1931.
Date:
1905
Catalogue details

Licence: In copyright

Credit: Atlas and epitome of operative ophthalmology / by O. Haab ; edited by G. E. de Schweinitz. 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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    mal sac by pushing on the piston (Fig. 151). The patient should incline the head slightly forward to allow the fluid to run out through the nose. Even this simple procedure is not always quite easy, and an inexperienced operator is likely to make a false passage with the conical probe or with the cannula—that is, push it into the tissue, which, if bichlorid of mercury is used, is followed by a severe and painful swelling of Fig. 149.—Dilation of the lower lacrimal canaliculus : First step. the tissue surrounding the canaliculus, lasting several days. For this reason, if the operator is not quite sure of himself he should use a physiologic saline solution when he performs his first irrigation. Medicated solutions that may be recommended are bichlorid of mercury, 1 :5000 up to 1 :1000; protargol, 5 to 10 per cent. ; [argyrol, 10 to 25 per cent.—Ed.] ; silver nitrate or zinc, 1 per cent., etc. An important precaution consists in injecting the