ken nichols vivid vision intern High Resolution clinical product shot optometry vision therapy visagraph results strabismus reading amblyopia box software covd seminar manish gupta cto portrait lilac chaser visual illusion pacman illusion logo small Vivid Vision team stereo sue fixing my gaze susan barry vr high resolution Vision therapy tool vision care tool vision therapy device vision treatment oculus rift hmd head mounted display john drake john games game design Ambiguity of Direction illusion depth perception tuan tran robert ebbinghaus illusion titchener circles success story testimonial featured doctor chart snellen acuity visual acuity OEP OEPF Optometric Extension Program Foundation Vision Therapy organization James Blaha Vivid Vision Seevividly vrvt diplopia apollo vr data page stats zach fuchs ucsf study virtual reality vision therapy vision care device alan purdy unity programmer Hardware Manish Gupta Virtual reality vision therapy Amblyopia treatment bundle Oculus Rift Orange Blue Light system blog header seal of approval certified provider zoom shumaker girl virtual reality Vivid Vision Optometry blog gear VR box art Ponzo illusion monocular cues arvind gupta advisor sosventures UVEA UVEA Mediklinik Vivid Vision Europe knowledge base launcher paul harris oep product home vivid vision home research poster arvo 2019 cindy ho vivid field lazy eye convergence insufficiency treatment test vision intermittent exotropia cover test Tuan Tran seevividly vivid vision clinical stereo depth 3d optical illusion cris miranda Impossible object blivet widget devils fork vive image fast company press buzz media add a user babo eric medine head shot team cafe wall illusion geometricaloptical importance of eye exams engadget vision therapy tool james blaha vr transformation Susan Barry Stereo Sue hardware leap motion xbox controller oculus rift touchscreen treatment plan Simultaneous Contrast Illusion monochrome gradated horizontal bar the verge od eye banner default VR vision therapy see vividly gizmodo header Skip Rift Setup Michigan State special Olympics png transparent conference northwestern congress markdown reference github