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The Carbon Particles Test and the Tear Flow Kôji Nagashima 1 1Nagashima Eye Clinic, Kyoto pp.651-656
Published Date 1976/6/15
DOI https://doi.org/10.11477/mf.1410205469
  • Abstract
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The author applied his modified Maurice's method for the study of tear drainage mechan-ism to 170 eyes of 91 patients with complaints of unilateral or bilateral tearing.

A small volume of saline, containing lamp-black as 1.5% suspension and 0.1% TWEEN 20, is applied to the conjunctival sac. The upper lacrimal puncta are then observed by slit-lamp microscope to see the drainage of carbon particles into the canaliculi.

Every case with normal lacrimal drainage, regardless of the presence of hypersecretion of lacrimal gland, shows a rapid phase of parti-cle flow lasting for one or two seconds imme-diately after blink.


Copyright © 1976, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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