The Usefulness of Continuously Variable View Rigid Endoscope in Lacrimal Surgeries: First Intraoperative Experience

The aims of this study were to illustrate the techniques and usefulness of a new rigid, variable-view endoscope in lacrimal surgeries.

A 4-mm continuously variable view rigid endoscope (EndoCAMeleon) was used to assess 4 intraoperative scenarios in lacrimal surgeries. The endoscope offers variable views from 15° to 90° in one single plane while remaining shape invariant. Multiple planes were assessed after changing the direction of the endoscopic shaft. The ease of handling and optical performance was noted in each plane.

Enhanced visualization over a wide angle range without moving the endoscope was found to be very beneficial intraoperatively. Accurate assessment of extent of cicatrization or synechiae causes of dacryocystorhinostomy failure, monitoring of internal common opening during trephination, and postoperative ostium evaluation was possible with wider and superior visualization. A complete endoscopic overview in one plane without the need of multiple angled endoscopes made the inspections detailed and less time consuming. Because the tip of the endoscope does not move, it was found to be effective in narrow working spaces without causing any collision with the tissues in the vicinity.

Enhanced field of vision, quicker assessment, and ability to optimize visualization in a continuous mode are advantages of using a variable-view endoscope in lacrimal surgeries.