chart snellen acuity visual acuity covd cris miranda high resolution vivid vision amblyopia bundle computer leap motion xbox controller touchscreen High Resolution all in one product shot pico goblin box art vr vision therapy Vision therapy tool vision care tool vision therapy device strabismus vision treatment Vivid Vision Seevividly vision care device john drake john games game design logos news media social media marketing cris alan purdy unity programmer Hardware data page animation stats figure ground organization gestalt psychology illusion techcrunch logo press buzz od tuan tuan tran dr tran optometrist ken nichols intern importance of eye exams stereo sue fixing my gaze susan barry seminar Vivid Vision Small Circle Logo Transparent manish gupta demo Simultaneous Contrast Illusion monochrome gradated horizontal bar 20 percent off discount badge gear vr samsung headset samsung vr samsung gear vr samsung gear amina stanbridge amina stanbridge hope clinic hope vision clinic vision therapist bellevue washington stereo depth 3d optical illusion promotions banner paul harris oep pc rift treatment plan home vivid vision clinical James Blaha vrvt diplopia apollo vr dr paul harris knowledge base launcher Checker shadows Edward Adelson shadows eye default virtual reality vision therapy Vivid Vision Optometry babo blog Susan Barry Stereo Sue sco professor Sue Barry barry sue james blaha svvr portrait zoom shumaker girl virtual reality rising star optometry testimonial circle small visual system Oculus Rift Orange Blue Light conference northwestern congress Dr Alex Talaber product vivid vision home manish cto retina diagram vision care d Ponzo illusion depth perception monocular cues aoa optometrys meeting clinical optometry visagraph results reading Tuan Tran OD test vision intermittent exotropia cover test ebbinghaus illusion titchener circles field vivid game bubbles screenshot featured doctor breaker colorful eric medine head shot team zach fuchs ucsf study