susan barry vr vision therapy high resolution Vision therapy tool vision care tool vision therapy device amblyopia strabismus vision treatment Vivid Vision Seevividly vision care device default podcasts High Resolution james blaha blaha ceo portrait blog Simultaneous Contrast Illusion monochrome gradated horizontal bar Illusory Motion fixation jitter visual cortex illusion rotsnake MC Escher Waterfall depth proximity Ambiguity of Direction depth perception base in base out vergence accommodation Ponzo illusion parallel lines monocular cues ken nichols vivid vision intern markdown reference github Checker shadows Edward Adelson shadows mary vanhoy eyes 4 wellness bubbles screenshot leap motion gameplay tuan tran od advisor cris miranda social media marketing cris cover test exotropia intermittent knowledge base launcher Hardware eye colorful vision logo header vivid field paul harris small vision therapy tool seevividly zoom shumaker girl virtual reality bundle system oculus rift hmd head mounted display software box daydream vr daydream headset google vr google daydream manish manish gupta cto all in one product shot pico goblin box art background IRS success story testimonial Cranial nerve Ocular Motor nerve diagram stereo 3d optical illusion stereo sue fixing my gaze James Blaha conference northwestern congress covd demo gesture tracking nvidia instructions Impossible object blivet widget devils fork time press buzz media diplopia Michigan State special Olympics the verge alan purdy unity programmer Research poster ARVO 2019 vivid vision clinical visagraph results reading backgdrop vrvt apollo vr tuan dr tran optometrist VividVision spotlights clinic spotlights sco professor Vivid Vision Circle Logo Transparent virtual reality vision therapy amblyopia treatment computer xbox controller touchscreen Vivid Vision Optometry wired time magazine the huffington post tech crunch fast company cnbc clinical optometry lilac chaser visual illusion pacman illusion Oculus Rift Orange Blue Light product home vivid vision home lazy eye ring runner space screen infographic dichoptic End of Year Special 2017