close up 3d human eye anatomy

red organ light pink eye darkness lighting circle purple hand blue glass petal wheel flower glasses font close anatomy human angle including iris blood vessels pupil lens sclera circulation black background retina oxygen circulation optomitrist opthamologist medical medicine health body science globe sclera orbit iris function sight vision pupil vein artery view straight background black white blue red vessels blood human anatomy vascular eye screenshot darkness line wheel pattern design symmetry lighting light organ art circle