Sensitive Eyes (3.5e Trait)
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 Sensitive Eyes
Light stings your eyes, but you see better in the dark.
Prerequisite: Cannot already have any other form light-sensitivity.
Benefit: You gain 30 feet of Darkvision.
Drawback: The character's eyes become sensitive to sunlight, sometimes other forms of light as well, and are dazzled by sunlight.
Roleplaying Ideas: The character could choose to stay inside more often, and perhaps become more reclusive.