Hj. Loff et al., THE BUBBLE TEST - AN ATRAUMATIC METHOD FOR CANALICULAR LACERATION REPAIR, Ophthalmic plastic and reconstructive surgery, 12(1), 1996, pp. 61-64
Canalicular lacerations need to be correctly identified before surgica
l repair. Methods to find the medial cut end are numerous. With the us
e of direct sight or the bubble test or both, the identification and r
epair of the medial cut end of the lacerated canaliculus should be ach
ievable in the majority of cases.