At Opticare Vision Centers, we strive to utilize the latest technology. That’s why we are happy to provide you with advanced glaucoma diagnostic testing using the GDx. The GDx uses laser imaging technology to determine your relative risk for glaucoma. The test is short (less than 5 minutes), non invasive, and gives your doctor advanced information about your retinal health to determine if you are at an increased risk of having glaucoma.