what is the slightly tingling sensation in our eyes when we first look at sunlight after a long time?

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I live in Scandinavia and we don’t get many hours of sunshine, especially in winter. Now that spring is coming and the sky is more often clear, it happens that if I get sun in my eyes I also get a pleasant tingling sensation. The same doesn’t happen with artificial light. What is it and why does it happen?

In: Biology