Shannon Hightower explains peripheral vision to Artis Teal & Tabetha Steffek, while Artis uses the vision disk.
Coby Smith tests his ability to see stereo-dot pictures, while Chris Staudt is matching yarnusing the yellow lense. The yellow lense mimics the effects of yellowing of the eyes due to age.
Aaron Aiza helps Stephanie Teal & Holly Griffith as they participate in the sniff task.
Sara Borek collects data as Tony Booker matches yarn to test his color vision.