A millimetric ruler for Lester Jones tube placement in conjunctivodacryocystorhinostomy.
OBJECTIVE
To describe the use of a ruler to increase the accuracy and customization of Lester Jones tube placement.


METHODS
This was a review of 92 patients who underwent minimally invasive conjunctivodacryocystorhinostomy using this instrument.


RESULTS
The success rate was 100%, with an average operating time of 15 minutes. In nine patients, late migration of the Jones tube into the nasal cavity required a secondary intervention, with successful Jones tube repositioning. In five cases, obstruction of the tube opening was caused by conjunctival overgrowth.


CONCLUSIONS
The millimetric ruler engraved in the sleeve of the trocar allows measuring and placing a personalized tube for each patient.
Ophthalmology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
Rodolfo Luis
RL
Vigo
Ophthalmology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
Tomás
T
Ortiz-Basso
Ophthalmology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
María Natalia
MN
Vilas
Ophthalmology Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
Jorge
J
Prémoli
dacryo-cystorhinostomy; lacrimal apparatus; lacrimal apparatus diseases; lacrimal duct obstruction; surgical instruments