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Argon Laser Photocoagulation for Neovascular Maculopathy: Three-Year Results From Randomized Clinical Trials
Abstract
• The Macular Photocoagulation Study randomized controlled clinical trials designed to determine whether argon laser photocoagulation is effective for preventing or delaying severe visual loss in eyes with an extrafoveal choroidal neovascular membrane secondary to senile macular degeneration (Senile Macular Degeneration Study [SMDS]), ocular histoplasmosis (Ocular Histoplasmosis Study [OHS]), or idiopathic neovascularization (Idiopathic Neovascularization Study [INVS]). Eligible patients were assigned randomly to a "treatment" group or to a "no treatment" group until recruitment was terminated in 1982 (SMDS) and 1983 (OHS and INVS) because of demonstrated short-term treatment benefit. As of Aug 31, 1985, three or more years of scheduled follow-up examinations had been completed for 208 (88%) of 236 eyes in the SMDS, 203 (77%) of 262 eyes in the OHS, and 51 (76%) of 67 eyes in the INVS. The relative risk of experiencing severe loss of vision after three years in eyes initially assigned to the no treatment group in comparison with eyes assigned to the argon laser photocoagulation group was 1.4 in the SMDS (95% confidence interval [CI]: 1.1 to 1.9), 5.5 in the OHS (95% CI: 3.9 to 10.8), and 2.3 in the INVS (95% CI: 0.8 to 6.5). The beneficial effects of argon laser treatment have persisted in all three studies in spite of the fact that some eyes in the "no treatment" groups were treated later in their clinical course as a result of the evidence of early benefit. Follow-up of all patients continues so that treatment effectiveness over a five-year period can be assessed.
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“In the 1980s, the Macular Photo-coagulation Study159,160 showed a reduction in vision loss associated with thermal laser photocoagulation, provided the neovascular lesion had well-demarcated (classic) boundaries.”
From Age-related macular degeneration (2008) · cites this paper as [159]
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Age-related macular degeneration
Lim, L. S., Mitchell, P., Seddon, J. M., Holz, F. G., & Wong, T. Y. (2012) · The Lancet · doi:10.1016/s0140-6736(12)60282-7 · Cited by 1,806
Age-related macular degeneration
Bressler, N. M., Bressler, S. B., & Fine, S. L. (1988) · Survey of Ophthalmology · doi:10.1016/0039-6257(88)90052-5 · Cited by 710
Schmidt-Erfurth, U. M., Chong, V. N., Loewenstein, A., Larsen, M., Souied, E. H., Schlingemann, R. O., Eldem, B. M., Monés, J., Richard, G. W., & Bandello, F. M. (2014) · British Journal of Ophthalmology · doi:10.1136/bjophthalmol-2014-305702 · Cited by 678
Age‐related macular degeneration—emerging pathogenetic and therapeutic concepts
Gehrs, K. M., Anderson, D. H., Johnson, L. V., & Hageman, G. S. (2006) · Annals of Medicine · doi:10.1080/07853890600946724 · Cited by 650
The Natural History and Prognosis of Neovascular Age-Related Macular Degeneration
Wong, T., Chakravarthy, U., Klein, R., Mitchell, P., Zlateva, G., Buggage, R., Fahrbach, K., Probst, C., & Sledge, I. (2008) · Ophthalmology · doi:10.1016/j.ophtha.2007.03.008 · Cited by 601
Metadata
- Venue
- Archives of Ophthalmology
- Publisher
- American Medical Association (AMA)
- Published
- 1986-05-01
- Volume
- 104
- Issue
- 5
- Pages
- 694
- ISSN
- 0003-9950 (ISSN-L)
- OpenAlex
- W4243337108
- Cited by
- 227
- References
- 0
- Citations by year
- 2026: 2 · 2025: 1 · 2024: 3 · 2023: 1 · 2022: 3 · 2021: 3 · 2020: 5 · 2019: 4 · 2018: 1 · 2017: 4 · 2016: 3 · 2015: 3 · 2014: 5 · 2013: 8 · 2012: 14
- FWCI
- 9.32
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Archives of Ophthalmology (publishedVersion)
- Topics
- Health Sciences › Medicine › Ophthalmology › Retinal Diseases and Treatments
- Health Sciences › Medicine › Ophthalmology › Retinal and Macular Surgery
- Health Sciences › Medicine › Ophthalmology › Ocular Diseases and Behçet’s Syndrome
- Keywords
- argon laser photocoagulation, choroidal neovascularization, senile macular degeneration, ocular histoplasmosis, macular photocoagulation, blindness prevention, long-term treatment effectiveness
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