scholarly journals 360 Degree Selective Laser Trabeculoplasty in Mexican Population

2012 ◽  
Vol 16 (4) ◽  
pp. 540-546
Author(s):  
Josué Roberto-Lozano ◽  
◽  
Mariya V. Kalashnikova ◽  
Gustavo Velasco-Gallegos ◽  
Junzo Watada ◽  
...  
Keyword(s):  
Medical Therapy ◽  
Repeated Measures ◽  
Open Angle Glaucoma ◽  
Pearson Correlation ◽  
T Test ◽  
Rank Test ◽  
Selective Laser Trabeculoplasty ◽  
Paired Samples ◽  
Laser Trabeculoplasty ◽  
Mexican Patients

The principal objective of the paper was to determine the safety and effectiveness of Selective Laser Trabeculoplasty (SLT) as applied to Mexican patients with Open Angle Glaucoma (OAG) according to the degree of Intraocular Pressure (IOP) reduction and the patient’s required medication. We used the following materials and methods: patients with OAG who underwent 360° SLT and either were under maximum tolerated topical medical therapy or had unwanted side effects were accepted as objects. The selected patients were subject to IOP measurement with 2 different tonometry methods prior to the SLT procedure and to the follow-up measurements on the third, sixth, and twelfth month after the procedure. In order to evaluate the efficiency of the SLT procedure, statistical analysis making use of the Repeated Measures One-Sample t-test, Paired-Samples t-test + Pearson Correlation Coefficient test, and Wilcoxon Signed-Rank test, was implemented. The main result of our research is: the desired criteria were met by twenty seven patients, who represent a sample of 50 eyes. Based upon this data, we can conclude that the treatment with SLT applied to Mexican patients with OAG reduces IOP and the need for topical medical therapy, which can lead to better control of the disease and compliance with treatment.

Selective Laser Trabeculoplasty as a Replacement for Medical Therapy in Open-Angle Glaucoma

2005 ◽  
Vol 140 (3) ◽  
pp. 524-525 ◽  
Author(s):  
Brian A. Francis ◽  
Tsontcho Ianchulev ◽  
John K. Schofield ◽  
Donald S. Minckler
Keyword(s):  
Medical Therapy ◽  
Open Angle Glaucoma ◽  
Open Angle ◽  
Selective Laser Trabeculoplasty ◽  
Laser Trabeculoplasty

scholarly journals Comparison of Treatment Outcomes of Selective Laser Trabeculoplasty for Primary Open-Angle Glaucoma and Pseudophakic Primary Angle-Closure Glaucoma Receiving Maximal Medical Therapy

2021 ◽  
Vol 10 (13) ◽  
pp. 2853
Author(s):  
Pei-Yao Chang ◽  
Jiun-Yi Wang ◽  
Jia-Kang Wang ◽  
Tzu-Lun Huang ◽  
Yung-Ray Hsu
Keyword(s):  
Medical Therapy ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Angle Closure ◽  
Open Angle ◽  
Selective Laser Trabeculoplasty ◽  
Primary Angle Closure ◽  
Primary Angle Closure Glaucoma ◽  
Laser Trabeculoplasty ◽  
Maximal Medical Therapy

Selective laser trabeculoplasty (SLT) is a useful treatment for intraocular pressure (IOP) control. However, there are only a few reports which compare the outcomes of SLT between primary open-angle glaucoma (POAG) and primary angle-closure glaucoma (PACG). We compared the efficacy of SLT for patients with PACG following phacoemulsification with POAG receiving maximal medical therapy (MMT). Consecutive glaucoma patients followed up for at least 1 year after SLT were retrospectively evaluated and IOP reductions at 6 months and 12 months were analyzed. Seventy-six patients were included in the analyses. The baseline IOPs in the POAG and PACG group were 18.5 ± 3.3 mmHg and 16.9 ± 2.5 mmHg, respectively, with 2.8 ± 0.9 and 2.7 ± 0.8 types of IOP lowering medication. The average IOP at the 6-month and 12-month follow-up after SLT was significantly decreased and comparable in both the POAG and PACG groups. For those with a low baseline IOP, the effect of SLT on IOP reduction at 12 months was significantly better in the PACG than in the POAG group (p = 0.003). IOP reduction at 6 and 12 months after SLT was significantly greater in those with a high baseline IOP than those with a low baseline IOP (p < 0.0065). In summary, the one-year efficacy of SLT was equivalent in POAG and pseudophakic PACG patients receiving MMT; however, SLT was more effective in eyes with PACG than eyes with POAG when focusing on those with a lower baseline IOP.

scholarly journals Selective Laser Trabeculoplasty in the Treatment of Ocular Hypertension and Open-Angle Glaucoma: Clinical Review

2021 ◽  
Vol 10 (15) ◽  
pp. 3307
Author(s):  
Aleksandra Zgryźniak ◽  
Joanna Przeździecka-Dołyk ◽  
Marek Szaliński ◽  
Anna Turno-Kręcicka
Keyword(s):  
Ocular Hypertension ◽  
Laser Energy ◽  
Open Angle Glaucoma ◽  
Biological Effects ◽  
Primary Treatment ◽  
Treatment Modalities ◽  
Complication Rates ◽  
Open Angle ◽  
Selective Laser Trabeculoplasty ◽  
Laser Trabeculoplasty

Selective laser trabeculoplasty (SLT) is a glaucoma treatment that reduces intraocular pressure (IOP). Its mechanism is based on the biological effects of the selective application of laser energy to pigmented trabecular meshwork (TM) cells, resulting in increased outflow facility. Herein, we review current publications on SLT and summarize its efficacy and safety for different indications in open-angle glaucoma (OAG) and ocular hypertension (OHT) treatment. SLT effectively reduces IOP when used as a primary treatment. In patients whose IOP is medically controlled, SLT helps to reduce medication use, and when maximally tolerated topical therapy is ineffective, SLT facilitates the realization of the target IOP. SLT is a repeatable procedure for which the vast majority of complications are mild and self-limiting. With effective IOP reduction, low complication rates and the potential to repeat the procedure, SLT offers the possibility of delaying the introduction of medical therapy and other more invasive treatment modalities while simultaneously avoiding the accompanying complications. With this knowledge, we suggest that SLT be considered as an essential primary treatment option in OAG and OHT, switching to other treatment modalities only when laser procedures are insufficient for achieving the required target IOP.

scholarly journals Intraocular Pressure-Lowering Potential of Subthreshold Selective Laser Trabeculoplasty in Patients with Primary Open-Angle Glaucoma

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Hong Yang Zhang ◽  
Yong Jie Qin ◽  
Yang Fan Yang ◽  
Jian Gang Xu ◽  
Min Bin Yu
Keyword(s):  
Intraocular Pressure ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Initial Energy ◽  
The Other ◽  
Open Angle ◽  
Selective Laser Trabeculoplasty ◽  
Laser Trabeculoplasty ◽  
Pressure Lowering ◽  
Laser Flare

Purpose.To compare the efficacy of subthreshold and conventional selective laser trabeculoplasty (SLT) in lowering intraocular pressure (IOP) in the patients with primary open-angle glaucoma (POAG).Methods.Fifty-two eyes from fifty-two POAG patients were randomized into two groups, one group treated with subthreshold SLT using two-thirds of the conventional energy and the other one treated with the conventional energy. IOP was measured with the Goldmann tonometer and the anterior chamber inflammation was determined using laser flare meter.Results.The initial energy dosage used in subthreshold SLT group was significantly lower than the amount of the energy used in conventional SLT group (0.4±0.1 mJ versus0.6±0.1 mJ,P=0.030). The total energy dosage was also significantly lower in subthreshold SLT group compared to the other group (37.6±3.3 mJ versus51.8±5.7 mJ,P=0.036). However, the level of inflammation in aqueous humor, amount of reduction in IOP, and the success rate in controlling IOP was the same in both groups.Conclusion.The efficacy of subthreshold SLT group in reducing IOP in POAG patients is comparable to the efficacy of conventional SLT group.

Selective Laser Trabeculoplasty Versus Medical Therapy as Initial Treatment of Glaucoma

2012 ◽  
Vol 21 (7) ◽  
pp. 460-468 ◽  
Author(s):  
L. Jay Katz ◽  
William C. Steinmann ◽  
Azad Kabir ◽  
Jeanne Molineaux ◽  
Sheryl S. Wizov ◽  
...  
Keyword(s):  
Medical Therapy ◽  
Initial Treatment ◽  
Selective Laser Trabeculoplasty ◽  
Laser Trabeculoplasty

Effect of Adaptive Compression and Fast-Acting WDRC Strategies on Sentence Recognition in Noise in Mandarin-Speaking Pediatric Hearing Aid Users

2018 ◽  
Vol 29 (04) ◽  
pp. 273-278
Author(s):  
Haihong Liu ◽  
Yuanhu Liu ◽  
Ying Li ◽  
Xin Jin ◽  
Jing Li ◽  
...  
Keyword(s):  
Repeated Measures ◽  
Dynamic Range ◽  
Hearing Aid ◽  
Hearing Threshold ◽  
T Test ◽  
Sentence Recognition ◽  
Repeated Measures Design ◽  
Paired Samples ◽  
Adaptive Compression ◽  
Fast Acting

AbstractWide dynamic range compression (WDRC) has been widely used in hearing aid technology. However, several reports indicate that WDRC may improve audibility at the expense of speech intelligibility. As such, a modified amplification compression scheme, named adaptive compression, was developed. However, the effect of compression strategies on speech perception in pediatric hearing aid users has not been clearly reported.The purpose of the present study was to investigate the effect of adaptive compression and fast-acting WDRC processing strategies on sentence recognition in noise with Mandarin, pediatric hearing aid users.This study was set up using a double-blind, within-subject, repeated-measures design.Twenty-six children who spoke Mandarin Chinese as their primary language and had bilateral sensorineural hearing loss participated in the study.Sentence recognition in noise was evaluated in behind-the-ear technology with both adaptive compression processing and fast-acting WDRC processing and was selected randomly for each child. Percent correct sentence recognition in noise with fast-acting WDRC and adaptive compression was collected from each participant. Correlation analysis was performed to examine the effect of gender, age at assessment, and hearing threshold of the better ear on signal-to-noise ratio, and a paired-samples t test was employed to compare the performance of the adaptive compression strategy and fast-acting WDRC processing.The mean percentage correct of sentence recognition in noise with behind-the-ear technology with fast-acting WDRC and adaptive compression processing were 62.24% and 68.71%, respectively. The paired-samples t test showed that the performance of the adaptive compression strategy was significantly better than the fast-acting WDRC processing (t = 3.190, p = 0.004).Compared with the fast-acting WDRC, adaptive compression provided better sentence recognition in noise for Mandarin pediatric hearing aid users.

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