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Formation of Peripheral Anterior Synechiae Following Argon Laser Trabeculoplasty: A Prospective Study to Determine Relationship to Position of Laser Burns

Formation of Peripheral Anterior Synechiae Following Argon Laser Trabeculoplasty: A Prospective... Abstract • One hundred eighteen eyes with primary open-angle glaucoma underwent argon laser trabeculoplasty. Laser burns were placed in the anterior trabecular meshwork (ATM) in 58 eyes and directly over Schlemm's canal in the posterior trabecular meshwork (PTM) in 60 eyes. Twenty-nine eyes received 100 burns and 89 eyes received 50 burns distributed equally over 360° Peripheral anterior synechiae (PAS) developed in seven (12%) of the eyes having anterior trabeculoplasty and in 26 (43%) of those having posterior trabeculoplasty. There was no correlation between the development of PAS and sex, width of the anterior chamber angle, or the number of laser burns. Eyes having anterior trabeculoplasty had a final decrease in intraocular pressure equal to those having posterior trabeculoplasties. Our results strongly suggest that trabeculoplasty is a safer but no less effective procedure when the laser burns are placed on the ATM rather than the PTM. References 1. Krasnov MM: Laseropuncture of anterior chamber angle in glaucoma . Am J Ophthalmol 1973;75:674-678. 2. Worthen DM, Wickham MG: Argon laser trabeculotomy . Trans Am Acad Ophthalmol Otolaryngol 1974;78:371-375. 3. Wilensky JT, Jampol LM: Laser therapy for open-angle glaucoma . Ophthalmology 1981; 88:213-217.Crossref 4. Wise JB, Witter SL: Argon laser treatment of open-angle glaucoma: A pilot study . Arch Ophthalmol 1979;97:319-322.Crossref 5. Wise JB: Long-term control of adult openangle glaucoma by argon laser treatment . Ophthalmology 1981;88:197-202.Crossref 6. Wickham MG, Worthen DM: Argon laser trabeculotomy: Long-term follow-up . Ophthalmology 1979;86:495-503.Crossref 7. Schwartz AL, Whitten ME, Bleiman MB, et al: Argon laser trabecular surgery in uncontrolled aphakic open-angle glaucoma . Ophthalmology 1981;88:203-212.Crossref 8. Thomas JV, Simmons RJ, Belcher CD: Argon laser trabeculoplasty in the pre-surgical glaucoma patient . Ophthalmology 1982;89:187-197.Crossref 9. Thomas JV, Simmons RJ, Belcher CD: Complications of argon laser trabeculoplasty . Glaucoma 1982;4:50-52. 10. Spaeth GL: The normal development of the human anterior chamber angle: A new system of descriptive grading . Trans Ophthalmol Soc UK 1971;91:709-739. 11. Weinreb RN, Ruder J, Juster R, et al: Influence of the number of laser burns administered on the early results of argon laser trabeculoplasty . Am J Ophthalmol 1983;95:287-292. 12. Wilensky JT, Weinreb RN: Low-dose trabeculoplasty . Am J Ophthalmol 1983;95:423-426. 13. Schwartz LW, Spaeth GL, Traverso C, et al: Variations of techniques on the results of argon laser trabeculoplasty . Ophthalmology 1983; 90:781-784.Crossref 14. Thomas JV: Laser trabeculoplasty , in Belcher CD, Simmons RJ (eds): Photocoagulation in Glaucoma and Anterior Segment Disease . Baltimore, Williams & Wilkins Co, 1984, pp 61-86. 15. Weinreb RN, Ruderman J, Juster R, et al: Immediate intraocular pressure response to argon laser trabeculoplasty . Am J Ophthalmol 1983;95:279-286. 16. Hoskins HD Jr, Hetherington J Jr, Minckler DS: Complications of laser trabeculoplasty . Ophthalmology 1983;90:796-799.Crossref 17. Rodrigues MM, Spaeth GL, Donohoo P: Electron microscopy of argon laser therapy in phakic open-angle glaucoma . Ophthalmology 1982;89:198-210.Crossref http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

Formation of Peripheral Anterior Synechiae Following Argon Laser Trabeculoplasty: A Prospective Study to Determine Relationship to Position of Laser Burns

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Publisher
American Medical Association
Copyright
Copyright © 1984 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1984.01040030681018
Publisher site
See Article on Publisher Site

Abstract

Abstract • One hundred eighteen eyes with primary open-angle glaucoma underwent argon laser trabeculoplasty. Laser burns were placed in the anterior trabecular meshwork (ATM) in 58 eyes and directly over Schlemm's canal in the posterior trabecular meshwork (PTM) in 60 eyes. Twenty-nine eyes received 100 burns and 89 eyes received 50 burns distributed equally over 360° Peripheral anterior synechiae (PAS) developed in seven (12%) of the eyes having anterior trabeculoplasty and in 26 (43%) of those having posterior trabeculoplasty. There was no correlation between the development of PAS and sex, width of the anterior chamber angle, or the number of laser burns. Eyes having anterior trabeculoplasty had a final decrease in intraocular pressure equal to those having posterior trabeculoplasties. Our results strongly suggest that trabeculoplasty is a safer but no less effective procedure when the laser burns are placed on the ATM rather than the PTM. References 1. Krasnov MM: Laseropuncture of anterior chamber angle in glaucoma . Am J Ophthalmol 1973;75:674-678. 2. Worthen DM, Wickham MG: Argon laser trabeculotomy . Trans Am Acad Ophthalmol Otolaryngol 1974;78:371-375. 3. Wilensky JT, Jampol LM: Laser therapy for open-angle glaucoma . Ophthalmology 1981; 88:213-217.Crossref 4. Wise JB, Witter SL: Argon laser treatment of open-angle glaucoma: A pilot study . Arch Ophthalmol 1979;97:319-322.Crossref 5. Wise JB: Long-term control of adult openangle glaucoma by argon laser treatment . Ophthalmology 1981;88:197-202.Crossref 6. Wickham MG, Worthen DM: Argon laser trabeculotomy: Long-term follow-up . Ophthalmology 1979;86:495-503.Crossref 7. Schwartz AL, Whitten ME, Bleiman MB, et al: Argon laser trabecular surgery in uncontrolled aphakic open-angle glaucoma . Ophthalmology 1981;88:203-212.Crossref 8. Thomas JV, Simmons RJ, Belcher CD: Argon laser trabeculoplasty in the pre-surgical glaucoma patient . Ophthalmology 1982;89:187-197.Crossref 9. Thomas JV, Simmons RJ, Belcher CD: Complications of argon laser trabeculoplasty . Glaucoma 1982;4:50-52. 10. Spaeth GL: The normal development of the human anterior chamber angle: A new system of descriptive grading . Trans Ophthalmol Soc UK 1971;91:709-739. 11. Weinreb RN, Ruder J, Juster R, et al: Influence of the number of laser burns administered on the early results of argon laser trabeculoplasty . Am J Ophthalmol 1983;95:287-292. 12. Wilensky JT, Weinreb RN: Low-dose trabeculoplasty . Am J Ophthalmol 1983;95:423-426. 13. Schwartz LW, Spaeth GL, Traverso C, et al: Variations of techniques on the results of argon laser trabeculoplasty . Ophthalmology 1983; 90:781-784.Crossref 14. Thomas JV: Laser trabeculoplasty , in Belcher CD, Simmons RJ (eds): Photocoagulation in Glaucoma and Anterior Segment Disease . Baltimore, Williams & Wilkins Co, 1984, pp 61-86. 15. Weinreb RN, Ruderman J, Juster R, et al: Immediate intraocular pressure response to argon laser trabeculoplasty . Am J Ophthalmol 1983;95:279-286. 16. Hoskins HD Jr, Hetherington J Jr, Minckler DS: Complications of laser trabeculoplasty . Ophthalmology 1983;90:796-799.Crossref 17. Rodrigues MM, Spaeth GL, Donohoo P: Electron microscopy of argon laser therapy in phakic open-angle glaucoma . Ophthalmology 1982;89:198-210.Crossref

Journal

Archives of OphthalmologyAmerican Medical Association

Published: Jun 1, 1984

References