Ideal Angle of Lester Jones Tube placement as studied in Thiel-embalmed human cadavers

Abstract

Lester Jones (LJ) bypass tube is commonly used for the treatment of epiphora where there is significant canalicular stenosis impeding successful outcome of dacrocystorhynostomy surgery alone. The recommended placement angle for the tube is 30-40 degrees from midline passing through glabella/nasal bridge, but so far there is no literature supporting this value. Our aim is to study the ideal placement angle of LJ tube in Thiel-embalmed human cadavers.