Demonstration of Visual Crowding (IMAGE) University of Cambridge Caption Focus on the green spot. Without moving your eyes, you should be able to identify the letter 'A' on the left side of the display; the same letter is almost impossible to see on the right side of the display. Credit Will Harrison, University of Cambridge Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.