photophobia

詳細解釋：

pho.to.pho.bi.a

n.（名詞）
An abnormal sensitivity to or intolerance of light, especially by the eyes, as may be caused by eye inflammation, lack of pigmentation in the iris, or various diseases.
畏光，羞明：對光線不正常敏感或無法忍受，尤指由眼引起的，可能是由眼炎、眼球虹彩中缺少色素或其它疾病而引起的
An abnormal or irrational fear of light.
恐光症，光恐怖：對光線不正常或不合情理的畏懼