[Dacryoscintigraphy: execution and examination technic in normal subjects].
After instillation of 0.013 ml of 99 mTc (equal to 60 microcuries), the authors performed a dacryoscintigraphy of the lacrymal ducts in 32 patients. The patients, between 6 and 80 year old, were divided in 4 age groups. None of them suffered from any diseases in the lacrymal apparatus or rhinopharynx. By this technique the authors studied the physiologic flow of tears, which varied with age and morphology of the ducts. They come to the conclusion that this non-invasive semeiological technique is much helpful in quantitative or qualitative study of the lacrymal ducts.
Adolescent↗