john drake john games game design wired logo press buzz media high resolution ebbinghaus illusion titchener circles chart snellen acuity visual acuity vr vision therapy vision therapy tool vision care tool vision therapy device amblyopia strabismus vision treatment vivid vision seevividly vision care device blog faq optometrist dr nate betsy yaros James Blaha Vivid Vision Seevividly High Resolution covd seminar vrvt diplopia apollo vr Vivid Vision Optometry product shot gear VR box art UVEA UVEA Mediklinik Vivid Vision Europe small software box clinical optometry james blaha svvr portrait Vivid Vision Small Circle Logo Transparent stereo sue fixing my gaze susan barry Vision therapy tool pc rift instructions home vivid vision clinical tuan tran od advisor preview hoopie screenshot game color colors color scheme figure ground organization gestalt psychology illusion zoom shumaker girl virtual reality engadget vision therapy patient the verge time time magazine the huffington post tech crunch fast company cnbc robert reading paul harris sco professor product vivid vision home promotions banner deepstreamvr howard rose logos news amina stanbridge amina stanbridge hope clinic hope vision clinic vision therapist bellevue washington Simultaneous Contrast Illusion monochrome gradated horizontal bar bundle computer leap motion xbox controller touchscreen knowledge base launcher vivid field MC Escher Waterfall depth proximity manish manish gupta cto background Testimonial nathan bonilla warford nathan bonillawarford birght eyes vision care bright eyes techcrunch vive image Illusory Motion fixation jitter visual cortex rotsnake rising star optometry bubbles gameplay Manish Gupta Virtual reality vision therapy Amblyopia treatment Tuan Tran visagraph results ring runner virtual reality vision therapy vision care d amblyopia treatment blog header dr paul harris Vivid Vision team watercolor illusion chromaticity luminance color contrast Hardware rift vr rift headset facebook vr headset facebook rift eye default SRC Melbourne See Vividly VR Vision therapy space screen oculus hmd head mounted display Ambiguity of Direction depth perception eye tracking