Are you ready to put your vision and brainpower to the ultimate ... This brain teaser is designed to trick your eyes and test the limits of your perception—only those with sharp eyesight and ...

from motion and depth perception to geometric patterns and colours. Optical illusions cast doubt on our understanding of reality and reveal the complexity of how the human eye works. For today's ...

1 or more concussions (n=66). Outcome measures The Nike SPARQ Sensory Station measures visual acuity, contrast sensitivity, depth perception, near-far quickness, target capture, perception span, ...