alan purdy vivid vision unity programmer High Resolution eye banner default viethmuller horopter vision brain esotropia strabismus double vision vision therapy optometry lazy eye crossed eye binocular vision disorder oculus rift hmd head mounted display exotropia amblyopia vergence disorders divergence excess strabismic refractive high resolution optometrist dr nate betsy yaros patient dan fortenbacher wow vision od michigan grand rapids st joseph Illusory Motion fixation jitter visual cortex illusion rotsnake Hardware promotions infographic dichoptic cover test intermittent James Blaha CEO Founder vividvisionhome licensespecial 6for4 suppression stereopsis logo wired the verge time time magazine the huffington post tech crunch fast company cnbc ACBO Australasian College of Behavioural Optometrists vectogram vision therapy equipment markdown reference github sunao miyoshi sales portrait APR rift s vr computer data page stats oculus quest quest vivid vision home bundle paul harris Vision therapy tool vision care tool vision therapy device vision treatment Vivid Vision Seevividly vision care device treatment plan home vivid vision clinical NORA neurooptometry neurorehabilitation TBI concussion head injury Vivid Vision Optometry product product shot events importance of eye exams leap motion xbox controller touchscreen pc box art Alan Purdy Game Engine Expert vision therapy tool seevividly knowledge base launcher vividly aware newsletter Vivid Vision Clinical Virtual Reality Vision therapy diplopia background backgdrop research poster ARVO 2019 Cindy Ho software box vrvt apollo vr arvind gupta advisor sosventures convergence insufficiency CI barnyard bounce breaker screenshot small blog BABO AOA American Optometric Association cover hygiene dr paul harris success story testimonial research oxavi cms Vision academy sf press buzz media Skip Rift Setup watercolor illusion chromaticity luminance color contrast childrens vision patching strabismus surgery atropine instructions game bubbles keyboard mouse Ponzo illusion parallel lines depth perception monocular cues sensor replacement zach fuchs ucsf study virtual reality vision therapy