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Q-Switched Laser Goniopuncture

Q-Switched Laser Goniopuncture Abstract A new approach to treatment of glaucoma has been tried, in which Q-switched laser bursts are delivered to the anterior chamber angle. Nonthermal effects emerge as an important factor in the biological action of such laser impulses. Laser-induced defects in the filtering zone produced by Q-switched impulses have been traced histologically. Fifty patients (all of them awaiting glaucoma surgery) were treated by the method described above. The maximum follow-up study was three years. The average drop in the intraocular tension was 8.3 mm Hg. Improvement in the outflow facility was also characteristic. No appreciable adverse effects have been traced. The controlled state of the intraocular pressure was maintained by repeated laser goniopuncture sessions on the eyes of 46 patients (in four cases the tension was not controlled). Q-switched laser goniopuncture seems to offer a new aspect in the treatment of glaucoma, but further extensive studies and several years of follow-up study are certainly needed. References 1. Bruma MS: L'effet laser . Gazette Med de France 1:1809-1826, 1967. 2. Krasnov MM: Laser-puncture of the anterior chamber angle in glaucoma . Vestn Oftalmol 1972, pp 27-31. 3. Krasnov MM: Laser microsurgery of the eye . Vestn Oftalmol 1973, pp 3-11. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

Q-Switched Laser Goniopuncture

Archives of Ophthalmology , Volume 92 (1) – Jul 1, 1974

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Publisher
American Medical Association
Copyright
Copyright © 1974 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1974.01010010041010
Publisher site
See Article on Publisher Site

Abstract

Abstract A new approach to treatment of glaucoma has been tried, in which Q-switched laser bursts are delivered to the anterior chamber angle. Nonthermal effects emerge as an important factor in the biological action of such laser impulses. Laser-induced defects in the filtering zone produced by Q-switched impulses have been traced histologically. Fifty patients (all of them awaiting glaucoma surgery) were treated by the method described above. The maximum follow-up study was three years. The average drop in the intraocular tension was 8.3 mm Hg. Improvement in the outflow facility was also characteristic. No appreciable adverse effects have been traced. The controlled state of the intraocular pressure was maintained by repeated laser goniopuncture sessions on the eyes of 46 patients (in four cases the tension was not controlled). Q-switched laser goniopuncture seems to offer a new aspect in the treatment of glaucoma, but further extensive studies and several years of follow-up study are certainly needed. References 1. Bruma MS: L'effet laser . Gazette Med de France 1:1809-1826, 1967. 2. Krasnov MM: Laser-puncture of the anterior chamber angle in glaucoma . Vestn Oftalmol 1972, pp 27-31. 3. Krasnov MM: Laser microsurgery of the eye . Vestn Oftalmol 1973, pp 3-11.

Journal

Archives of OphthalmologyAmerican Medical Association

Published: Jul 1, 1974

References

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