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Human retina is built backwards, confirm scientists
Highlights
The human retina is built backwards, with the neurons in front of the photoreceptors, rather than behind them. The retina is not just the simple detector and neural image processor as believed until today. Its optical structure is optimised for our vision purposes. The wiring of the human eye - a product of our evolutionary baggage - does not make a lot of sense.
The human retina is built backwards, with the neurons in front of the photoreceptors, rather than behind them. The retina is not just the simple detector and neural image processor as believed until today. Its optical structure is optimised for our vision purposes. The wiring of the human eye - a product of our evolutionary baggage - does not make a lot of sense. In vertebrates, photoreceptors are located behind the neurons in the back of the eye - resulting in light scattering by the nervous fibres and blurring of our vision. A type of metabolic cell that crosses the retina, play an essential role in guiding and focusing light scattered throughout the retina.
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