Intraocular Pressure Lowering Is Associated with an Increase in the Photopic Negative Response (PhNR) Amplitude in Glaucoma and Ocular Hypertensive Eyes

2013 ◽  
Vol 54 (3) ◽  
pp. 1913 ◽  
Author(s):  
Nuwan Niyadurupola ◽  
Chi D. Luu ◽  
Dan Q. Nguyen ◽  
Kristen Geddes ◽  
Gary X. V. Tan ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Negative Response ◽  
Photopic Negative Response ◽  
Pressure Lowering

scholarly journals Short-Term Changes in the Photopic Negative Response Following Intraocular Pressure Lowering in Glaucoma

2020 ◽  
Vol 61 (10) ◽  
pp. 16
Author(s):  
Jessica Tang ◽  
Flora Hui ◽  
Xavier Hadoux ◽  
Bernardo Soares ◽  
Michael Jamieson ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Negative Response ◽  
Photopic Negative Response ◽  
Short Term ◽  
Pressure Lowering

Early results of micropulse transscleral cyclophotocoagulation for the treatment of glaucoma

2019 ◽  
Vol 30 (4) ◽  
pp. 700-705 ◽  
Author(s):  
Alexander T Nguyen ◽  
Jessica Maslin ◽  
Robert J Noecker
Keyword(s):  
Intraocular Pressure ◽  
Continuous Wave ◽  
Open Angle Glaucoma ◽  
Case Series ◽  
Angle Closure ◽  
Secondary Outcome ◽  
Early Results ◽  
Pressure Lowering ◽  
Transscleral Cyclophotocoagulation ◽  
The Mean

Purpose: To describe our clinical experience with the efficacy and safety of micropulse transscleral cyclophotocoagulation as a treatment for glaucoma. Methods: In this retrospective case series, we reviewed the charts of 95 consecutive patients with various glaucoma subtypes who underwent micropulse transscleral cyclophotocoagulation. Patients were offered micropulse transscleral cyclophotocoagulation if they had perimetric glaucoma refractory to intraocular pressure–lowering topical medications and who were poor candidates for traditional filtering surgery. Eligible patients were treated with the Micropulse P3 device (IQ 810 Laser Systems; Iridex, Mountain View, CA, USA) at 2.0–2.5 W for a duration of 90 s per hemisphere at a 31.3% duty cycle. If a retreatment was needed, the power was increased to up to 3.0 W with other parameters remaining the same. Patients were considered successfully treated if their intraocular pressure was lowered by at least 20% compared to their baseline. The main outcome measure was post-operative intraocular pressure; secondary outcome measures included the number of adverse events and complications that occurred with treatment. Results: The glaucoma subtypes treated included primary open-angle glaucoma (n = 51), exfoliation glaucoma (n = 24), chronic angle-closure glaucoma (n = 15), and congenital/juvenile glaucoma (n = 5). The mean pre-operative intraocular pressure was 25.1 ± 5.3 mm Hg and the mean post-operative intraocular pressure at 12 months was 17.5 ± 5.1 mm Hg (p = 0.004). The mean number of intraocular pressure–lowering medications used preoperatively was 3.0 ± 1.1; the mean number of medications used at the 12-month post-operative visit was 1.4 ± 1.0 (p = 0.03). Success with one treatment was achieved in 73 (76.8%) of patients. With multiple treatments, all patients had significant intraocular pressure–lowering compared to baseline. The maximum number of treatments received by any single patient was 5. There were no instances of prolonged intraocular inflammation or long-term hypotony. Conclusion: Micropulse transscleral cyclophotocoagulation appears to be a safe and efficacious treatment for glaucoma. Given its improved safety profile compared to continuous-wave transscleral cyclophotocoagulation, it deserves consideration as a primary procedure.

scholarly journals Association between Rates of Retinal Nerve Fiber Layer Thinning after Intraocular Pressure–Lowering Procedures and Disc Hemorrhage

2020 ◽  
Vol 3 (1) ◽  
pp. 7-13 ◽  
Author(s):  
Huiyuan Hou ◽  
Sasan Moghimi ◽  
Linda M. Zangwill ◽  
James A. Proudfoot ◽  
Tadamichi Akagi ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Nerve Fiber ◽  
Retinal Nerve Fiber Layer ◽  
Fiber Layer ◽  
Disc Hemorrhage ◽  
Nerve Fiber Layer ◽  
Pressure Lowering ◽  
Retinal Nerve Fiber

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.

scholarly journals Comparison of intraocular pressure-lowering effects of ripasudil hydrochloride hydrate for inflammatory and corticosteroid-induced ocular hypertension

PLoS ONE ◽  
2017 ◽  
Vol 12 (10) ◽  
pp. e0185305 ◽  
Author(s):  
Mami Yasuda ◽  
Kei Takayama ◽  
Takayuki Kanda ◽  
Manzo Taguchi ◽  
Hideaki Someya ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Ocular Hypertension ◽  
Pressure Lowering
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