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• W1972940403 abstract "Background: Initial studies of laser trabeculoplasty using infrared energy (810 nm) emitted by diode semi-conductor lasers have been encouraging. A 2-year study of diode laser trabeculoplasty (DLT) in the control of primary open-angle glaucoma (POAG) and ocular hypertension has been completed. Methods: Patients with uncontrolled POAG or ocular hypertension were treated with DLT to one half of the trabecular meshwork using a trabeculoplasty lens. Spot size was 100 µm, exposure time was 0.2 second, and mean power was 1096 mW (±46.5 mW). The desired endpoint was a mild blanching of the meshwork only. Results: Twenty-five eyes of 16 patients were treated. Mean intraocular pressure reduction was 9.24 mmHg (±3.4 mmHg) at 6 weeks, 9.32 mmHg (±3.6 mmHg) at 3 months, 9.34 mmHg (±3.8 mmHg) at 6 months, 8.42 mmHg (±2.62 mmHg) at 12 months, 8.14 mmHg (±3.42 mmHg) at 18 months, and 7.9 mmHg (±3.63 mmHg) at 24 months. No pressure peaks (>5 mmHg) were recorded after therapy. Inflammation and discomfort were minimal after laser treatment. Of 16 eyes examined at 2 years, there were no peripheral anterior synechiae. During the course of the study, six eyes became uncontrolled, despite one session of DLT. Four eyes regained control with a further session of DLT, but two required trabeculectomy. Conclusion: Diode laser trabeculoplasty is an effective form of therapy in POAG and ocular hypertension. Hypotensive effects and success rates are comparable with argon laser trabeculoplasty (ALT). Reduced inflammation after laser treatment may be due to reduced absorption of infrared energy by the melanin of the anterior segment. The portable nature of these lasers may allow for laser delivery in developing countries and remote situations. Background: Initial studies of laser trabeculoplasty using infrared energy (810 nm) emitted by diode semi-conductor lasers have been encouraging. A 2-year study of diode laser trabeculoplasty (DLT) in the control of primary open-angle glaucoma (POAG) and ocular hypertension has been completed. Methods: Patients with uncontrolled POAG or ocular hypertension were treated with DLT to one half of the trabecular meshwork using a trabeculoplasty lens. Spot size was 100 µm, exposure time was 0.2 second, and mean power was 1096 mW (±46.5 mW). The desired endpoint was a mild blanching of the meshwork only. Results: Twenty-five eyes of 16 patients were treated. Mean intraocular pressure reduction was 9.24 mmHg (±3.4 mmHg) at 6 weeks, 9.32 mmHg (±3.6 mmHg) at 3 months, 9.34 mmHg (±3.8 mmHg) at 6 months, 8.42 mmHg (±2.62 mmHg) at 12 months, 8.14 mmHg (±3.42 mmHg) at 18 months, and 7.9 mmHg (±3.63 mmHg) at 24 months. No pressure peaks (>5 mmHg) were recorded after therapy. Inflammation and discomfort were minimal after laser treatment. Of 16 eyes examined at 2 years, there were no peripheral anterior synechiae. During the course of the study, six eyes became uncontrolled, despite one session of DLT. Four eyes regained control with a further session of DLT, but two required trabeculectomy. Conclusion: Diode laser trabeculoplasty is an effective form of therapy in POAG and ocular hypertension. Hypotensive effects and success rates are comparable with argon laser trabeculoplasty (ALT). Reduced inflammation after laser treatment may be due to reduced absorption of infrared energy by the melanin of the anterior segment. The portable nature of these lasers may allow for laser delivery in developing countries and remote situations." @default.
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• W1972940403 date "1993-11-01" @default.
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• W1972940403 title "Long-term Follow-up of Diode Laser Trabeculoplasty for Primary Open-angle Glaucoma and Ocular Hypertension" @default.
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• W1972940403 doi "https://doi.org/10.1016/s0161-6420(93)31428-4" @default.
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