photalgia vs photophobia

photalgia and photophobia both are nouns.

Word	Noun	Adjective	Verb	Adverb
photalgia	Yes	No	No	No
photophobia	Yes	No	No	No

As nouns, photalgia and photophobia are synonyms defined as:

photalgia and photophobia: pain in the eye resulting from exposure to bright light (often associated with albinism)

photalgia (noun)	photophobia (noun)
pain in the eye resulting from exposure to bright light (often associated with albinism)	pain in the eye resulting from exposure to bright light (often associated with albinism)
	a morbid fear of light