Macular Dystrophy with Central Cone Involvement, also known as ccmd, is related to cataract 1, multiple types and rapidly involuting congenital hemangioma. An important gene associated with Macular Dystrophy with Central Cone Involvement is MFSD8 (Major Facilitator Superfamily Domain Containing 8). Affiliated tissues include eye and thalamus, and related phenotypes are visual impairment and reduced visual acuity