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Laser Iridotomy in Closed-Angle Glaucoma

Laser Iridotomy in Closed-Angle Glaucoma Abstract • An argon laser iridotomy was performed on 53 eyes of 34 patients with closed-angle glaucoma. Technically, all of the iridotomies were successful. Blue irides were more resistant to treatment than brown irides. The iridotomies were performed with high energy of 4 W and a very short exposure time of 0.01 to 0.04 s, thus minimizing thermal damage to adjacent tissues. Patients with narrow angles who underwent preventive laser iridotomy benefited most from the procedure, and all the eyes of this group maintained a normal intraocular pressure (IOP) after the iridotomy. Of the 20 eyes with acute angle-closure glaucoma, 17 maintained a normal IOP after iridotomy, and only three were resistant to this treatment, calling for filtering operations later. The IOP of eyes with chronic closed-angle glaucoma did not change after the procedure, and the iridocorneal angles remained practically the same. Argon laser iridotomy by this technique is highly recommended as the procedure of choice for eyes with acute angle-closure glaucoma and for preventive iridotomy in the fellow eye. The procedure is simple, is performed in the outpatient clinic, and engenders no major complications. References 1. Meyer-Schwickerath C: Erfahrungen mit der Lichtkongulation der Metzhaut und der Iris . Doc Ophthalmol 10:119-131, 1956.Crossref 2. Beckman H, Sugar HS: Laer iridectomy therapy of glaucoma . Arch Ophthalmol 90:453-455, 1973.Crossref 3. Beckman H, Barraco R, Sugar HS, et al: Laer iridectomies . Am J Ophthalmol 72:393-402, 1971. 4. Snyder WB: Laser coagulation of anterior segment . Arch Ophthalmol 77:93-98, 1967.Crossref 5. Zweng HC, Paus GL, Bassoliadis A, et al: Laser photocoagulation of the iris . Arch Ophthalmol 84:193-199, 1970.Crossref 6. Perkins ES, Brown NAP: Iridotomy with a ruby laser . Br J Ophthalmol 57:487-498, 1973.Crossref 7. Khuri CH: Argon laser iridectomies . Am J Ophthalmol 76:490-493, 1973. 8. Pollack IP, Patz A: Argon laser iridotomy: An experimental and clinical study . Ophthalmic Surg 7( (1) ):22-30, 1976. 9. Abraham RK: Procedure for outpatient argon laser iridectomies for angle closure glaucoma . Int Ophthalmol Clin 16:1-18, 1 1976. 10. Abraham RK, Miller GL: Outpatient argon laser iridectomy for angle closure glaucoma: A two-year study . Trans Am Acad Ophthalmol Otolaryngol 79:529-538, 1975. 11. Becker SC: Clinical Gonioscopy: A Text and Stereoscopic Atlas . St Louis, CV Mosby Co, 1972. 12. Perkins ES, Brown NAP: Laser treatment of glaucoma , in International Glaucoma Symposium . Marseilles, France, R. Etienne & G. D. Paterson, 1975. 13. Brown NAP: The laser treatment of glaucoma , in Perkins ES, Hill DW (eds): Scientific Foundations of Ophthalmology . London, William Heinemann Medical Books, 1977, pp 306-313. 14. Worthen DM: Laser treatment for glaucoma , in Kaufman HE, Zimmerman TJ (eds): Current Concepts in Ophthalmology . St Louis, CV Mosby Co, 1976. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

Laser Iridotomy in Closed-Angle Glaucoma

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References (17)

Publisher
American Medical Association
Copyright
Copyright © 1979 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1979.01020020368018
Publisher site
See Article on Publisher Site

Abstract

Abstract • An argon laser iridotomy was performed on 53 eyes of 34 patients with closed-angle glaucoma. Technically, all of the iridotomies were successful. Blue irides were more resistant to treatment than brown irides. The iridotomies were performed with high energy of 4 W and a very short exposure time of 0.01 to 0.04 s, thus minimizing thermal damage to adjacent tissues. Patients with narrow angles who underwent preventive laser iridotomy benefited most from the procedure, and all the eyes of this group maintained a normal intraocular pressure (IOP) after the iridotomy. Of the 20 eyes with acute angle-closure glaucoma, 17 maintained a normal IOP after iridotomy, and only three were resistant to this treatment, calling for filtering operations later. The IOP of eyes with chronic closed-angle glaucoma did not change after the procedure, and the iridocorneal angles remained practically the same. Argon laser iridotomy by this technique is highly recommended as the procedure of choice for eyes with acute angle-closure glaucoma and for preventive iridotomy in the fellow eye. The procedure is simple, is performed in the outpatient clinic, and engenders no major complications. References 1. Meyer-Schwickerath C: Erfahrungen mit der Lichtkongulation der Metzhaut und der Iris . Doc Ophthalmol 10:119-131, 1956.Crossref 2. Beckman H, Sugar HS: Laer iridectomy therapy of glaucoma . Arch Ophthalmol 90:453-455, 1973.Crossref 3. Beckman H, Barraco R, Sugar HS, et al: Laer iridectomies . Am J Ophthalmol 72:393-402, 1971. 4. Snyder WB: Laser coagulation of anterior segment . Arch Ophthalmol 77:93-98, 1967.Crossref 5. Zweng HC, Paus GL, Bassoliadis A, et al: Laser photocoagulation of the iris . Arch Ophthalmol 84:193-199, 1970.Crossref 6. Perkins ES, Brown NAP: Iridotomy with a ruby laser . Br J Ophthalmol 57:487-498, 1973.Crossref 7. Khuri CH: Argon laser iridectomies . Am J Ophthalmol 76:490-493, 1973. 8. Pollack IP, Patz A: Argon laser iridotomy: An experimental and clinical study . Ophthalmic Surg 7( (1) ):22-30, 1976. 9. Abraham RK: Procedure for outpatient argon laser iridectomies for angle closure glaucoma . Int Ophthalmol Clin 16:1-18, 1 1976. 10. Abraham RK, Miller GL: Outpatient argon laser iridectomy for angle closure glaucoma: A two-year study . Trans Am Acad Ophthalmol Otolaryngol 79:529-538, 1975. 11. Becker SC: Clinical Gonioscopy: A Text and Stereoscopic Atlas . St Louis, CV Mosby Co, 1972. 12. Perkins ES, Brown NAP: Laser treatment of glaucoma , in International Glaucoma Symposium . Marseilles, France, R. Etienne & G. D. Paterson, 1975. 13. Brown NAP: The laser treatment of glaucoma , in Perkins ES, Hill DW (eds): Scientific Foundations of Ophthalmology . London, William Heinemann Medical Books, 1977, pp 306-313. 14. Worthen DM: Laser treatment for glaucoma , in Kaufman HE, Zimmerman TJ (eds): Current Concepts in Ophthalmology . St Louis, CV Mosby Co, 1976.

Journal

Archives of Ophthalmology – American Medical Association

Published: Oct 1, 1979

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