Continuous Wave (CW) and Micropulse Transscleral Laser Cyclophotocoagulation (TLC)
0Continuous Wave (CW) and Micropulse Transscleral Laser Cyclophotocoagulation (TLC) for Refractory Glaucoma in African Eyes: A Comparative Study
Layman Abstract :
Background:Transscleral laser cyclophotocoagulation (TLC) is a laser treatment used for severe glaucoma that does not respond to regular treatments. It has become more popular than an older freezing treatment because it works better, is safer, and has fewer side effects. There are two main types of this laser treatment: one using a diode laser and the other using an Nd:YAG laser.
Aim: This study looked at how well a specific type of TLC (using a diode laser) worked for treating severe glaucoma in African patients. It also compared two methods of applying the laser — continuous wave (CW) and micropulse wave (MP) — to see which one worked better.
Methods:The study followed patients in Lagos, Nigeria, who received diode laser treatment for severe glaucoma between January and December 2021.
Results: The study included 52 eyes from 52 patients, with an average age of 66 years. Before treatment, the average eye pressure (IOP) was about 31 mmHg. After treatment, the average eye pressure dropped to about 18 mmHg at 4 weeks, 21 mmHg at 8 weeks, and 20.6 mmHg at 12 weeks. This drop in pressure was statistically significant, meaning the treatment was effective overall.
Both the continuous wave and micropulse wave laser methods lowered eye pressure effectively. On average, the micropulse group lowered eye pressure by about 7.5 mmHg, and the continuous wave group lowered it by about 11.7 mmHg after 12 weeks.
The micropulse group had slightly better success (78.6% of eyes had successful results) compared to the continuous wave group (63.2%), but this difference was not big enough to be considered statistically significant.
Conclusion:
Both the continuous wave (CW) and micropulse wave (MP) laser methods were effective at lowering eye pressure in African patients with severe glaucoma. The micropulse method showed a slightly higher success rate, but the difference between the two methods wasn’t large enough to say for sure that one is better than the other.
----------
Original Abstract : Background: Transscleral laser cyclophotocoagulation (TLC) has shown promising results in the treatment of refractory glaucoma and practically replaced cyclocryotherapy due to better outcomes, efficacy, increased safety, and tolerability. Two protocols of TLC have gained more popularity as effective modalities, TLC with the semiconductor diode laser and TLC with the Nd: YAG laser.
Aims: The aim of the study is to report the efficacy of transscleral diode laser photocoagulation and compare outcomes between the continuous wave (CW) and micropulse wave (MP) protocols for refractory glaucoma in African eyes.
Methods: A non-randomized prospective comparative study of patients who had transscleral diode laser photocoagulation for refractory glaucoma between January 2021 and December 2021in Eye Foundation Hospital Lagos, Nigeria was done.......See More: https://doi.org/10.9734/bpi/msti/v8/4544
#Continuous_wave_transscleral_laser_photo_coagulation #micropulse_transscleral_laser_photocoagulation #refractory_glaucoma #transscleral_laser_cyclophotocoagulation