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Closure of incisions in cataract surgery in-vivo using a temperature controlled laser soldering system based on a 1.9µm semiconductor laser

: Gabay, I.; Basov, S.; Varssano, D.; Barequet, I.; Rosner, M.; Rattunde, M.; Wagner, J.; Platkov, M.; Harlev, M.; Rossmann, U.; Katzir, A.


Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVI : February 13-14, 2016, San Francisco, California, United States
Bellingham, WA: SPIE, 2016 (Proceedings of SPIE 9702)
ISBN: 978-1-6284-1936-8
Paper 97020B, 7 S.
Conference "Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications" <16, 2016, San Francisco/Calif.>
Fraunhofer IAF ()
laser soldering; cornea; cataract surgery; in-vivo; pigs; semiconductor diks laser (SDL); temperature control

In phacoemulsification-based cataract surgery, a corneal incision is made and is then closed by hydration of the wound lips, or by suturing. We developed a system for sealing such an incision by soldering with a semiconductor disk laser (=1.9µm), under close temperature control. The goal was to obtain stronger and more watertight adhesion. The system was tested on incisions in the corneas of 15 eyes of pigs, in-vivo. Optical Coherent Tomography (OCT) and histopatho-logic examination showed little thermal damage and good apposition. The measured average burst pressure was 1000±30mmHg. In the future, this method wound may replace suturing of corneal wounds, including in traumatic corneal laceration and corneal transplantation.