Checker shadows Edward Adelson illusion shadows alan decorte High Resolution happy holidays vivid vision high resolution diplopia seevividly visagraph results strabismus reading logo png transparent featured doctor vision therapist COVT promo Testimonial vision therapy success story testimonial wired the verge time time magazine the huffington post tech crunch fast company cnbc product product shot home vivid vision home Vision therapy student western university college of optometry gear vr samsung headset samsung vr samsung gear vr samsung gear cafe wall illusion geometricaloptical tuan tran od portrait advisor vr Vision therapy tool vision care tool vision therapy device amblyopia vision treatment Vivid Vision Seevividly vision care device john drake john games game design cris miranda social media marketing cris conference northwestern congress VR exercise VR bike BABO optometry Hering illusion geometrical optical Ewald Hering stereo depth 3d optical illusion small markdown reference github products low vision lighthouse certified provider vivid vision provider vision therapy doctor stereo sue fixing my gaze susan barry james blaha virtual reality vision therapy ring runner space screenshot screen bundle system COVD College of Optometrists in Vision Development paul harris sco professor Manish Gupta Virtual reality vision therapy Amblyopia treatment game nvidia instructions research poster arvo 2019 cindy ho vision therapy patient rift vr rift headset facebook vr headset facebook rift rift base in base out vergence accommodation vivid field blog breaker leap motion vision therapy tool Vivid Fusion dashboard interface optometric research Vivid Vision Optometry reading problem convergence insufficiency phone trouble reading vivid vision home version ken nichols intern covd James Blaha clinical svvr ebbinghaus illusion titchener circles manish manish gupta cto vivid vision clinical zach fuchs ucsf study Illusory Motion fixation jitter visual cortex rotsnake press buzz media deepstreamvr howard rose box software patient success story andrea girl shumaker engadget headache blurry vision double vision Vivid Vision team nathan bonilla warford nathan bonillawarford birght eyes vision care bright eyes optometrist Hardware eye colorful vision dr nate betsy yaros blog header