noun. a morbid fear of light.
noun. pain in the eye resulting from exposure to bright light (often associated with albinism).
1. Noun, singular or mass Dogs with pain and photophobia also might try to rub their face or eyes on the floor or their own body in an attempt to alleviate the pain. 2. Verb, past participle Magnesium deficiency is not known to cause light sensitivity, but if you have photophobia, talk with your doctor about a possible connection to migraines 12').