• The online interactive test consists of 42 discs that were selected specifically to illustrate various optic disc features
• The discs were also selected to illustrate variation in difficulty
• Not all discs have glaucomatous optic neuropathy
• Each disc will be visible for 90 seconds only
• During that time the test participant will be asked 9 questions about the individual features of the disc
• A final question will ask the test participant to judge the likelihood of the disc having glaucomatous optic neuropathy based on the features asked
• Immediate online feedback is provided following completion of all 42 discs

Next (the test screen)