Summary

Glaucoma is a progressive disease that leads to optic disc cupping and visual field loss due to retinal ganglion cell damage, and represents the most common cause of irreversible blindness worldwide. As of 2020, about 80 million people globally were living with this chronic condition. In the United States alone more than 3 million people are living with glaucoma, 2.7 of whom — aged 40 and over — are affected by its most common form, primary open angle glaucoma. Unfortunately, it is estimated that half of glaucoma patients remain undiagnosed.