Repeated argon laser trabeculoplasty

Bergeå, Bengt

doi:10.1111/j.1755-3768.1986.tb06911.x

Cited by 13 publications

(6 citation statements)

References 5 publications

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“…These results are comparable to three previous reports of repeat ALT (Starita et al 1984;Bergea 1986;Grayson et al 1988), although others found it to be less successful (Brown et al 1985;Messner et al 1987;Richter et al 1987). A prospective study of argon laser trabeculoplasty (Fink et al 1988) also recorded a low success rate when ALT was performed.…”

Section: Discussionsupporting

confidence: 92%

Standard and long duration repeat argon laser trabeculoplasty

Hugkulstone

1990

Acta Ophthalmologica

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A retrospective survey was performed on 22 patients with chronic simple glaucoma who had undergone a single repetition of argon laser trabeculoplasty. Two groups were identified who had received treatment with either 0.1 or 0.2 sec duration. The 0.2 sec group showed a reduction in the medications used, in addition to a comparable fall in intra-ocular pressure to the 0.1 sec group, and had a lower rate of drainage surgery. These findings may have arisen because of the higher energy delivered as a result of the longer duration employed. However, there are risks of repeating argon laser trabeculoplasty: one patient in the 0.2 sec group developed a rise in intra-ocular pressure of 15 mmHg following the repeat treatment, and required drainage surgery one month later.

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Section: Discussionsupporting

confidence: 92%

Standard and long duration repeat argon laser trabeculoplasty

Hugkulstone

1990

Acta Ophthalmologica

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“…Of the 46 eyes that were classified as failures at the end of the 24-month follow-up period, three were able to withstand intensified medical treatment at that time, 16 received secondary ALT (Bergei 1986) and eight, mainly among cases of early failure with high IOP, underwent a filtering operation as a first additive treatment. In the other 19 failures the IOP level was accepted without change in therapy as the pressure reduction was nevertheless considerable and perimetry did not reveal any further loss of function.…”

Section: Resultsmentioning

confidence: 99%

Intraocular pressure reduction after argon laser trabeculoplasty in open‐agnle glaucoma

Bergeå

1986

Acta Ophthalmologica

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One hundred and twenty-eight eyes of 113 pre-surgical patients with open-angle glaucoma, treated with 360-degree orgon laser trabeculoplasty, were followed up for 24 months. Success was defined as an intraocular pressure below 23 mmHg as well as an intraocular pressure reduction of at least 20% with the same medical therapy as given before laser treatment, or less. The total success rate was 64%. In 79 eyes with capsular glaucoma the success rate was 76%, whereas in 49 eyes with simple glaucoma it was 45%. The success rate increased in groups with higher degrees of trabecular pigmentation, probably an effect of a higher proportion of eyes with capsular glaucoma in these groups. Baseline intraocular pressure had no influence on the success rate. No correlation was found between the amount of laser energy delivered and the degree of pressure reduction after 6 months. Neither was there any significant difference in laser energy levels between eyes showing successful results and those regarded as failures at the end of the 2-year follow-up period.

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“…In fact, repeat ALT sometimes produced paradoxical IOP elevations (presumably because of cumulative coagulative damage to the trabecular outflow pathway 61 ) that often required surgical intervention. [62][63][64][65][66][67] On this basis, repeat ALT was not incorporated into the Glaucoma Laser Trial study design: when additional IOP reduction was required in laser-first eyes, medical therapy was initiated. 68 SLT uses the Q-switched, frequency-doubled Nd:YAG laser platform and consists of ∼100 contiguous nonoverlapping treatment spots over the full 360 degrees of TM.…”

Section: The Case For Low Energy Slt Standard Slt Causes Trabecular M...mentioning

confidence: 99%

Low-energy Selective Laser Trabeculoplasty Repeated Annually: Rationale for the COAST Trial

Realini

Gazzard

Latina

et al. 2021

Journal of Glaucoma

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The recent Laser in Glaucoma and Ocular Hypertension Trial provided the evidentiary basis for a paradigm shift away from the historical medication-first approach to glaucoma-which has numerous limitations, the most important of which is poor adherence to therapy -and toward a laser-first approach. Now 20 years after its commercialization, selective laser trabeculoplasty (SLT) is routinely performed consistently with its initial description, with energy titrated to the appearance of fine, champagne-like cavitation bubbles. A recent data set suggested that lower energy SLT, applied as primary therapy and repeated annually irrespective of intraocular pressure-rather than pro re nata when its effect wanes and irrespective of intraocular pressure rises -yields longer medication-free survival than standard energy SLT repeated pro re nata. A new study-Clarifying the Optimal Application of SLT Therapy -has been initiated to explore this preliminary finding in a pair of consecutive randomized trials. Herein, we provide an evidence-based rationale for the use of low-energy SLT repeated annually as primary therapy for mild to moderate primary open-angle glaucoma or high-risk ocular hypertension.

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Repeated argon laser trabeculoplasty

Cited by 13 publications

References 5 publications

Standard and long duration repeat argon laser trabeculoplasty

Standard and long duration repeat argon laser trabeculoplasty

Intraocular pressure reduction after argon laser trabeculoplasty in open‐agnle glaucoma

Low-energy Selective Laser Trabeculoplasty Repeated Annually: Rationale for the COAST Trial

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