The lenses in the photo above have nearly 90% transparency and give you a high contrast view especially in dawn, sunset and rainy conditions. However, you will definitely feel strange when you wear them as you will lose sense of colours. Your view will go monotonous just with shades of yellow.
It is very interesting as they are only cutting 10% of visible lights and actually boosting your sense of contrast but you can no longer distinguish between colours.
Even more interestingly, although similar things happen when you are focusing on a particular aspect on your observation or experience, you won't notice the difference unlike the effect of yellow sunglasses.
A human is so prone to biases, isn't it?
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