Abstract
AIMS—To utilise the improved optical qualities of newly developed lacrimal endoscopes and newly miniaturised laser fibres for diagnostic visualisation and laser surgery of the lacrimal system. METHODS—A KTP laser (wavelength 532 nm, 10 W energy) was used for laser assisted dacryocystorhinostomy (DCR) with endolacrimal visualisation in 26 patients. Bicanalicular silicone intubation was placed in all patients for at least 3 months. RESULTS—After 3-9 months of follow up, the silicone tube in all 21 patients who underwent KTP laser DCR are still patent, three patients have eye watering in extremely cold weather and two required a conventional DCR. CONCLUSIONS—The KTP laser generates enough power to open the bony window in DCR surgery. Precise endolacrimal visualisation via a specially designed miniendoscope is essential for surgical success.
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Figure 1 .
Endoscope: consisting of a metal canula, optic and light fibres. Outer diameter 1.1 mm.
Figure 2 .
Whole endoscopy system consisting of light source, video recorder, and video screen.
Figure 3 .
Endoscope with three way adapter for laser fibre, endoscopic light, and light fibres. Laser fibre on top with maximum light.
Figure 4 .
(Top left) Canaliculus occluded through membrane; (top right) laser in situ; (bottom) after opening with laser.
Figure 5 .
Transcanalicular laser DCR seen from the nose, left: green light during laser procedure; right: laser after penetration through lacrimal sac, bone, and nasal mucosa.
Figure 6 .
Nasal endoscopy: metal canula (diameter 3 mm) from assisting ENT doctor in bony window created by laser.
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
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