Senile involution of the conjunctival and hypothalamic small blood vessels.
D000368:Aged; D001161:Arteriosclerosis / Q000473:pathology*; D002196:Capillaries / Q000473:pathology*; D003228:Conjunctiva / Q000098:blood supply*; D006801:Humans; D007031:Hypothalamus / Q000098:blood supply*