Blue eyes may be better for reading in dim light than brown eyes

People with blue eyes may have better sight in dim conditions than those with brown eyes, which could explain why the colour has persisted in certain populations

Do people with blue eyes have more sensitivity to sunlight than people with brown eyes? If so, what is the scientific reason behind it? - Quora

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Why are blue (or light eyed) people more sensitive to light than brown (or dark eyed) people if it's the pupil that lets in light? - Quora

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Why do people with blue eyes tend to be more nearsighted than those with brown eyes? - Quora