Optic disc drusen are acellular, calcified deposits within the optic nerve head. Optic disc drusen are congenital and developmental anomalies of the optic nerve head, representing hyaline-containing bodies that, over time, appear as elevated, lumpy irregularities on the anterior portion of the optic nerve. [https://orcid.org/0000-0002-0736-9199, PMID:22787500, PMID:23658477, PMID:30524490]