It's not just about the physical properties of light entering your eye through a lens. Just as the fingers on my right hand may be slightly shorter than the ones on my left, my left and right eyes may have slight differences.Ĭolor perception is an amazingly complicated process. The reason boils down to this: We're not perfectly symmetrical creatures. (These tests also find slight differences between people in color perception, though the differences are small here too.) "Both eyes will be slightly different but in the normal range ," Shevell tells me. Steven Shevell, a professor of ophthalmology and psychology at the University of Chicago, frequently tests color vision by bringing people into the lab and gradually changing hues of light until the participant notices a difference. It's very common to find a subtle but significant difference between the eyes on color perception tests. Overall, the experts replied, I'm not crazy (at least about this). So I asked a handful of visual perception experts to find out: Is this real? It's actually quite plausible that each eye sees color slightly differently The question of whether our left and right eyes perceive color slightly different pops up on Quora, Reddit, and other internet forums occasionally. This sounds odd, but I don't think I'm alone. I'd lie in bed as a 5-year-old and play this game - closing one eye and then another - and find wonder in the weirdness of it. It's as if someone pulled up a color slider in Photoshop and adjusted the hue in each eye by just one tiny notch.
It's not like my eyes are covered with red-blue 3D glasses. The effect is extremely, extremely subtle. If I close my left eye, the world becomes a bit warmer, as if filtered by very pale rose glass. White walls take on a very subtle blue or green tint. If I close my right eye, the world just looks.
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