Assertion: prostaglandin's effect | /r/HasProperty | increased periocular skin pigmentation
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text: A commonly known side effect of PGAs is increased periocular skin pigmentation; however, Lin et al. report a case of paradoxical deep pigmentation of periocular skin lightening that occurred in a 55-year-old African-American man treated with 0.005% latanoprost that was initiated in both eyes at different times and occurred within 1 year of PGA treatment [