To describe the findings of a new crystalline maculopathy exclusively affecting individuals who have previously received intravitreous triamcinolone acetonide injections. Methods: In a retrospective, observational, noncomparative case series, 21 eyes of 13 patients referred over a 9-year period were identified as having a characteristic crystalline maculopathy. Each patient underwent detailed historical questioning and comprehensive ocular evaluation, including formal retinal examination, fundus photography, fluorescein angiography, and optical coherence tomography. Results: Each of the 21 eyes was treated with intravitreous triamcinolone (preserved in all but 2 eyes) for macular edema (18 eyes due to diabetes, 2 due to pseudophakic cystoid macular edema, and 1 due to a vein occlusion). The crystals were superficial, refractile, white or yellow-Author Affiliations are listed at the end of this article.
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