Treatment is aimed at improving drainage of the excess fluid in the eye.
Laser Surgery: there are several different glaucoma laser techniques, but all involve aiming a laser beam into the eye which you will see as a bright light, similar to a camera flash.
Trabeculectomy: this is a surgical procedure in which a tiny hole is made in the sclera (white of the eye) that provides an alternative fluid drainage pathway.
https://www.healthpoint.co.nz/private/ophthalmology/royston-hospital-ophthalmology-eye-surgery/