Optic pits have been associated with serous retinal detachments in up to as many as 50% of all cases. These detachments may occur at any age but most frequently present in early adulthood. The most popular theory behind this association is a separation of the layers of the retina, known as retinoschisis, due to fluid (the vitreous humour) entering the optic pit and traveling between the inner and outer layers of the retina. The outer layer may then subsequently detach. Evidence of retinoschisis has been demonstrated using OCT.