Look, Your Eyes Are Wired Backwards: Here’s Why

Health and Medicine





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The retina captures light signals and sends them to the brain. from www.shutterstock.com

The human eye is optimised to have good colour vision at day and high sensitivity at night. But until recently it seemed as if the cells in the retina were wired the wrong way round, with light travelling through a mass of neurons before it reaches the light-detecting rod and cone cells. New research presented at a meeting of the American Physical Society has uncovered a remarkable vision-enhancing function for this puzzling structure.