ESCRS - POSUS002 - Red Versus Green Diode Laser Photocoagulation For Threshold Retinopathy Of Prematurity

Red Versus Green Diode Laser Photocoagulation For Threshold Retinopathy Of Prematurity

Published 2026 - 44th Congress of the ESCRS

Reference: POSUS002 | Type: Free paper | DOI: 10.82333/rsaq-0y08

Authors: Ms Mantsha Ahmed 1 , Mr Mohammad Semaal Khan 2 , Dr Anastasiya Stefanyshyn 3 , Dr Tetiana Gavrylyshyn 3 , Dr Paul Runge* 3

1pediatrics,Ivano-Frankivsk National Medical University,Ivano-Frankivsk,Ukraine, 2pediatrics,Ivano-Frankivsk National Medical University,Ivano-Frankivsk,Ukraine;pediatrics,Ivano-Frankivsk National Medical University,Ivano-Frankivsk,Ukraine, 3pediatrics, clinical children's hospital,Ivano-Frankivsk,Ukraine

Purpose

The purpose of this study is to compare the results of the treatment of threshold ROP with two different lasers; the red 810nm vs green 520nm diode lasers.

Setting

Communal Non-Commercial Enterprise "Ivano-Frankivsk Regional Children's Hospital of Ivano-Frankivsk Regional Council"

Methods

The red laser (LightMed LIGHTLas 810nm laser, San Clemente, CA) was employed from January 2021 until March 8, 2023, at which point the green laser (Norlase LION 520nm laser, Copenhagen) was deployed.

Results

The parameters assessed were number of laser spots, the total amount of energy applied and the total duration of the laser treatment. The total number of spots required to treat all eyes with the red laser were 14587 (mean 1216) and for the green laser 21122 (mean 1760). This amounts to 31% more spots, 184% less energy and a 400% decrease duration with the green when compared to the red laser.

Conclusions

Introduction of the green laser led to shorter treatment times, improved post-treatment eye conditions,clearer corneas, and better retina views.
 
Red laser: 1) consistent post-op corneal and retinal edema, 2) hot, sharp, rapidly occurring, deep retinal burns, 3) consistent post-op retinal
hemorrhages, 4) slow retinal pigmentation, >1 month, 5) consistent loss of dilation, 6) rare post op cataract.
 
Green laser: 1) no post-op corneal and very little retinal edema, 2) soft, slow developing, more anterior (less deep and less white) retinal burns, 3) very rare post-op retinal hemorrhage, 4) rapid retinal pigmentation by 2 weeks, 5) no loss of Cdilation, 6) no post-op retinal edema, 7) no post-op cataracts.