FIELD: medicine.
SUBSTANCE: invention relates to field of medicine, namely to ophthalmology. In order to sample non-stimulated tear under control of rhinoendoscope micropipette is applied to region of nasolacrymal duct outlet. Tear outflow is forced by pressing region of lachrymal sac projection, or patient is asked to make frequent blinking movements, and tears are collected. Actions aimed at tear outflow forcing are repeated until necessary amout of fluid is collected.
EFFECT: method increases efficiency of sampling non-stimulated tear, which passed through all parts of tear withdrawing apparatus.
2 ex
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