CFH and dense deposit disease: Other risk factors, including untreated hypertension, use of alcohol, pregnancy, kidney disease (type II membranoproliferative glomerulonephritis), and genetic factors such as age-related maculopathy susceptibility 2 (ARMS2) and complement factor H (CFH) have also been proposed in various studies and showed significant association with the occurrence of CSCR [14, 19, 31].