Tear Drainage through the Upper Can,liculus in Case of Lower Canalicular ObstruCtion.
- Author:
Wha Sun CHUNG
1
;
Tae Kab KIM
Author Information
1. Department of Ophthalmology, College of Medicine Yeungnam University, Daegu, Korea.
- Publication Type:Original Article
- Keywords:
Dacryoscintigraphy;
Half tine of 99m-Tc-phytate in conjunctival fornix;
Lower canalicular obstruction
- MeSH:
Drainage*;
Humans;
Lacrimal Apparatus Diseases;
Tears*
- From:Journal of the Korean Ophthalmological Society
1993;34(4):273-278
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Symptomatic epiphora has been rarely observed in patients jwith only one canaliculus obstruction. The authors experienced 7 cases of only lower canahculus obstruction without epiphora. Tear drainge of these eyes was assessed using dacryoscintigraphy and compared with the comtrol eyes. The measurement of T1/2 valuse, the duration of which a given amount of 99m-Tc-phytate drops to half in the conjunctival fornix was performed. The T1/2 valuse was 368.1 seconds in average in the eye with the lower canaliculus obstruction and 263.3 seconds in the control eyes(p
