This can occur in more extreme cases such as when the same high contrast image is continuously displayed for prolonged periods of time. (support.apple.com)
The researchers could cancel out vision of one eye's image by presenting a specific high contrast image to the other eye. (scientificamerican.com)
DARKNESS is a new instrument that can take higher contrast images to help spot fainter exoplanets orbiting stars (Credit: UCSB) (newatlas.com)