Angioid streaks of the fundus are not apparent at birth. In order to study their evolution, we examined in a retrospective manner the fundus pictures of 111 subjects with angioid streaks. The earliest form of angioid streaks became apparent at age 8 with findings of narrow short radial discontinuous hypopigmented streaks. Thereafter angioid streaks enlarged in length and width. The end-stage was disciform macular degeneration, helicoid peripapillary atrophy, or diffuse choroidal sclerosis with obscuration of the angioid streaks. We conclude that angioid streaks represent a dynamic manifestation of an underlying retinochoroidal degenerative process.