Macular Degeneration, Age-Related, 4, also known as age related macular degeneration 4, is related to kuhnt-junius degeneration and macular degeneration, age-related, 1. An important gene associated with Macular Degeneration, Age-Related, 4 is CFH (Complement Factor H). Affiliated tissues include retina and eye, and related phenotypes are macular degeneration and pigmentation