[Histological study on idiopathic epimacular membrane in three cases of different age]

Histological features of idiopathic premacular membrane were studied in 3 cases of different ages. All cases were female and complained of blurred vision without any causative moment. The age was 7 year in Case 1, 29 year in Case 2 and 68 year in Case 3. The cases underwent vitreous surgery with easy removal of the membranes. On light and electron microscopical observation, the membranes composed of retinal glial cells, connective tissue and the inner limiting membrane in Case 1, fibroblastic cells and connective tissues in Case 2, and connective tissues and the inner limiting membrane lacking any cellular component in Case 3. These findings strongly suggest the possibility of existence of various pathogeneity and developmental stages and types in idiopathic epimacular membrane.