
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 yarn using 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.