Comparative Study of the Use of Nd: YAG Laser and Argon Laser for Angle Closure Glaucoma Management

Angle-closure glaucoma (ACG) is a major cause of blindness worldwide. This study aims to evaluate Nd: YAG LASER and Argon LASER for (ACG) treatment. The investigation took place in the COMSOL Multiphysics simulation environment. The eye’s iris was modeled, and the two LASERs were exposed on the anterior face of the iris to create an invasive hole. The thermal responses of the eye due to the transmission of the electromagnetic energy carried by the two LASERs were measured. The results indicated that a lower thermal intensity of 350K from 1064 Nd: YAG LASER with a pulse duration of 1ns and a heat flux of 1000 W/m² was more effective and safer for creating a hole through iris and reducing intraocular pressure (IOP) with minimal risk of iris tissue damage compared to the higher thermal response of 400K induced by 488nm argon LASER with the same pulse duration of I ns and a heat flux of 1000 W/m² . The finding improves clinical practice in the ophthalmology field.