The Politically correct way of saying Marijuana. Especially useful around younger people who don't know what the h Glaucoma is.
Also a good subject to mention to your optometrist! He'll love it!!!
guy #1 What the hell are you doing dude - we are going on a job interview. Don't light that joint in my car.
guy #2 Dude,I have to smoke my Pre-Glaucoma Treatment
EVERY day or I may go blind!