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Photophthalmia /pho·toph·thal·mia/ (fōt″of-thal´me-ah) is ophthalmia or inflammation of the eye, especially of the cornea and conjunctiva due to exposure to intense light of short wavelength (as ultraviolet light), as in snow blindness.〔(【引用サイトリンク】url=http://www.merriam-webster.com/medical/photophthalmia )〕 It involves occurrence of multiple epithelial erosions due to the effect of ultraviolet rays, especially between 311 to 290 nm. Snow blindness occurs due to reflection of ultraviolet rays from snow surface. Photoretinitis is another form that can occur due to infra-red rays (eclipse burn of retina). ==Clinical features== It can present with the following: * severe burning pain * lacrimation * photophobia * blepharospasm * swelling of palpebral conjunctiva * retrotarsal folds 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Photophthalmia」の詳細全文を読む スポンサード リンク
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