Transscleral cyclophotocoagulation with MicroPulse® laser versus cyclophotocoagulation with continuous diode laser in patients with open-angle glaucoma

2021 ◽  
Author(s):  
Sofia Fili ◽  
Iraklis Vastardis ◽  
Georgios Perdikakis ◽  
Markus Kohlhaas
Keyword(s):  
Diode Laser ◽  
Open Angle Glaucoma ◽  
Open Angle ◽  
Transscleral Cyclophotocoagulation

scholarly journals Efficacy of Microwave Pulse Diode Laser and Argon Laser Trabeculoplasty in Patients with Primary Open Angle Glaucoma

2020 ◽  
Vol 36 (3) ◽  
Author(s):  
Asma Shams ◽  
Narain Das ◽  
Noman Rashid ◽  
M. Nasir Bhatti ◽  
Beenish Khan ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Diode Laser ◽  
Microwave Pulse ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Argon Laser ◽  
Open Angle ◽  
Argon Laser Trabeculoplasty ◽  
Laser Trabeculoplasty ◽  
Group B

Purpose:  To compare the efficacy of the microwave pulse diode laser and argon laser trabeculoplasty in primary open angle glaucoma. Study Design:  Quasi experimental study. Place and Duration of Study:  Shaheed Mohtarma Benazir Bhutto Medical College Lyari and Sindh Government Lyari General Hospital, Karachi, from October, 2017 to March, 2018. Material and Methods:  One hundred and sixty patients, between 42 to 61 years with visual acuity of perception of light to 6/36 were enrolled. Patients diagnosed with POAG were included and patients with intraocular pressure of more than 40 mm Hg, previous glaucoma surgery or laser treatment and narrow angle on gonioscopy were excluded. Ophthalmic examination included visual acuity, slit lamp examination, fundus examination and visual field status using Humphrey perimeter. Patients were divided into two groups. Group A received microwave pulse diode laser (810) and Group B received argon laser trabeculoplasty. Average follow up period was 6 months. Success was assessed objectively by measuring intra ocular pressure and subjectively by visual acuity. Results:  The average time-period for each procedure was 15 ± 5 minutes. In Group A, mean IOP at first week, first month, third month and sixth month was 20.79, 16.34, 16.21and 16.09 mm Hg respectively. While in Group B, IOP at first week, first, third and sixth month was 16.52, 15.76, 13.62, and 12.54 mm Hg at (P < 0.001 in both groups). Conclusion:  Both microwave pulse diode laser and argon laser trabeculoplasty are effective in lowering intra ocular pressures in patients with primary open angle glaucoma.

Outcomes of micropulse transscleral cyclophotocoagulation in primary open-angle glaucoma, pseudoexfoliation glaucoma, and secondary glaucoma

2020 ◽  
pp. 112067212091423 ◽  
Author(s):  
Oya Tekeli ◽  
Helin Ceren Köse
Keyword(s):  
Intraocular Pressure ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Secondary Glaucoma ◽  
Open Angle ◽  
Pseudoexfoliation Glaucoma ◽  
Transscleral Cyclophotocoagulation ◽  
The Mean ◽  
Glaucoma Group

Purpose: The aim of this study is to compare the outcomes of micropulse transscleral cyclophotocoagulation between primary open-angle glaucoma, pseudoexfoliation glaucoma, and other types of secondary glaucoma. Methods: Outcomes of 96 consecutive patients with refractory, end-stage glaucoma treated with micropulse transscleral cyclophotocoagulation were retrospectively reviewed. Follow-up examinations were performed on a regular basis until 12 months postoperatively. Surgical successes were defined as maintaining intraocular pressure ⩽18 mmHg and ⩾20% reduction in intraocular pressure (criteria A), ⩽15 mmHg intraocular pressure and ⩾25% reduction in intraocular pressure (criteria B), and ⩽12 mmHg intraocular pressure and ⩾30% reduction in intraocular pressure from baseline (criteria C). Results: Ninety-six eyes of 96 patients (50 (52%) females, 46 (48%) males) were included. Among all eyes, 32 were primary open-angle glaucoma, 30 were pseudoexfoliation glaucoma, and 34 were other types of secondary glaucoma. The mean age was 59.37 ± 11.45 (range: 20–91) years. The mean follow-up period was 14.2 ± 3.9 (range: 12–16) months. At 12 months, the success rates of primary open-angle glaucoma, pseudoexfoliation glaucoma, and secondary glaucoma group were 68.75%, 66.6%, and 64.7% (p = 0.185) for criteria A; 56.25%, 53.3%, and 50% (p = 0.153) for criteria B; and 43.75%, 43.3%, and 38.2% (p = 0.146) for criteria C. Four patients (12.5%) in primary open-angle glaucoma group, 5 patients (16.6%) in pseudoexfoliation glaucoma group, and 14 (41.2%) patients in other secondary glaucoma group required reoperation during the follow-up (p < 0.05). Conclusion: Micropulse transscleral cyclophotocoagulation is an equally effective method of lowering intraocular pressure in patients with primary open-angle glaucoma, pseudoexfoliation glaucoma, and other types of secondary glaucoma. The rate of reoperation was higher in refractory secondary glaucoma patients.

scholarly journals Diode laser trabeculoplasty in open angle glaucoma: 50μ vs. 100μ spot size

2011 ◽  
Vol 64 (3-4) ◽  
pp. 211-214
Author(s):  
Veljko Andreic ◽  
Aleksandar Miljkovic ◽  
Nikola Babic
Keyword(s):  
Intraocular Pressure ◽  
Diode Laser ◽  
Open Angle Glaucoma ◽  
Spot Size ◽  
Laser Spot ◽  
Open Angle ◽  
Pressure Decrease ◽  
Group I ◽  
The Mean ◽  
Group Ii

The study was aimed at evaluating the efficacy of diode laser trabeculoplsaty in lowering intraocular pressure in patients with both primary open-angle glaucoma and exfoliation glaucoma by using different size of laser spot. This six-month, unmasked, controlled, prospective study included sixty-two patients with the same number of eyes, who were divided into two groups. Trabeculoplasty was performed with 50 ? and 100 ? laser spot size in the group I and group II, respectively. Other laser parameters were the same for both groups: the wave length of 532 nm, 0.1 second single emission with the power of 600-1200 mW was applied on the 180 degrees of the trabeculum. The mean intraocular pressure decrease in the 50 ? group (group I) on day 7 was 24% from the baseline and after six-month follow-up period the intraocular pressure decrease was 29.8% (p<0.001). In the 100? group (group II), the mean intraocular pressure decrease on day 7 was 26.5% and after six months it was 39% (p<0.001).

Diode Laser Trabeculoplasty in Patients with Pseudoexfoliative Glaucoma

2013 ◽  
Vol 07 (01) ◽  
pp. 14
Author(s):  
Nikola Babić ◽  
Aleksandar Miljković ◽  
Veljko Andreić ◽  
◽  
◽  
...  
Keyword(s):  
Diode Laser ◽  
Open Angle Glaucoma ◽  
Spot Size ◽  
Open Angle ◽  
Pseudoexfoliative Glaucoma ◽  
Laser Trabeculoplasty ◽  
Significant Difference ◽  
Before And After ◽  
One Year ◽  
A Prospective Study

Aim:A prospective study was carried out to examine the efficacy of diode laser trabeculoplasty (DLT) in the treatment of pseudoexfoliative glaucoma (XFG).Material and Methods:Laser trabeculoplasty was performed by Zeiss VISULAS 532s diode pumped solid state laser on 69 eyes of 40 patients with XFG and primary open-angle glaucoma. Power of 600–1,200 mW was used, with a spot size of 100 microns and a pulse of 0.10 second. One hour before DLT brimonidine 0.1 % was administered and during seven days after the treatment Dexamethasone 1 % was administered. All patients underwent complete ophthalmic evaluation before and at intervals after treatment (seven days, one, three and six months and one year postoperatively). During the follow-up period, patients were treated with the same topical anti-glaucoma medicaments as before diode laser trabeculoplasty.Results:Before treatment in XFG patients mean intraocular pressure (IOP) was 23.7±2.6 mmHg and seven days after DLT it was 16.8 ± 2.1 mmHg that is 26.9 % decrease from the baseline, on day 30 it was 14.3 ± 2.2 mmHg which is 38.3 % decrease from the baseline, after 3 months 13.9 ± 2.4 mmHg (39.0 % decrease from the baseline), after six months 13.8 ± 2.7 mmHg or 39.9 % decrease from the baseline and after one year 15.1 ± 3.1 mmHg that makes 36.3 % decrease from the baseline. No side effects (either objective or subjective) were present in examined patients.Conclusions:There is statistically significant difference between IOP before and after diode laser trabeculoplasty, so it is concluded that diode laser trabeculoplasty is an effective mode of treatment for eyes with open-angle glaucoma especially in patients with XFG.

Long-term Follow-up of Diode Laser Trabeculoplasty for Primary Open-angle Glaucoma and Ocular Hypertension

Ophthalmology ◽  
1993 ◽  
Vol 100 (11) ◽  
pp. 1614-1618 ◽  
Author(s):  
Anthony P. Moriarty ◽  
J. Dominic A. McHugh ◽  
Timothy J. ffytche ◽  
John Marshall ◽  
A.M. Peter Hamilton
Keyword(s):  
Ocular Hypertension ◽  
Diode Laser ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Open Angle ◽  
Laser Trabeculoplasty ◽  
Long Term Follow Up

Micropulse transscleral cyclophotocoagulation: clinical outcomes of treatment of early stages open-angle glaucoma

2021 ◽  
pp. 36-41
Author(s):  
Y.V. Milasheuski ◽  
◽  
T.A. Imshanetskaya ◽  
Keyword(s):  
Visual Acuity ◽  
Open Angle Glaucoma ◽  
Laser Exposure ◽  
Open Angle ◽  
Pseudoexfoliative Glaucoma ◽  
Early Stages ◽  
Corrected Visual Acuity ◽  
Transscleral Cyclophotocoagulation ◽  
Best Corrected Visual Acuity ◽  
Observation Period

Purpose. To evaluate treatment efficiency of open-angle glaucoma with micropulse transscleral cyclophotocoagulation, to determine the optimal total energy of laser exposure and to assess the stability of the glaucoma process after treatment. Material and methods. A prospective study was carried out. It included 34 (21 patients) with primary open-angle and pseudoexfoliative glaucoma of stages 1-3, which undergone micropulse transscleral cyclophotocoagulation. The patients were divided into subgroups 1 and 2, depending on the total amount of laser energy (100 J and 150 J, respectively). At different periods of observation, the intraocular pressure, best corrected visual acuity, visual fields, cup-to-disc ratio and the number of antiglaucoma drugs were determined. Results. In the general group, all operated patients achieved a decrease in IOP to a tolerant level, from a median value of 27 [25; 28] in the preoperative period, up to 17.5 [15; 20] at the end of the observation period. The number of used drugs decreased statistically significantly, from 3.0 [3.0; 3.0] to 2.0 [1.0; 2.0]. There was a statistically significant increase in the mean deviation of the retinal photosensitivity, from –4.85 [–8.25; –2.17] to –4.36 [–7.06; –2.37] after 18 months. Indicators of best corrected visual acuity and CDR remained stable throughout the observation period. In subgroup 2 (150J), a statistically more significant decrease in IOP level (p=0.033) and the number of used drugs (p=0.001) was achieved compared with subgroup 1 (100J). Conclusion. Micropulse transscleral cyclophotocoagulation is an effective and safe method of treating open-angle glaucoma in patients with early stages of the disease and high values of best corrected visual acuity. Using a total amount of energy in 150J contributes to a more pronounced decrease in IOP and a decrease in the number of applied drugs than an energy in 100J. Key words: open-angle glaucoma, pseudoexfoliative glaucoma, micropulse cyclophotocoagulation.

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