Centrally located optic pits are less likely to cause changes in the retina. However, if located more peripherally in the optic disc, then it is more likely to cause a serous retinal detachment. Furthermore, if the optic pit is located temporally (which the majority are), then it is more likely to cause detachment of the macula because of the macula's proximity to the temporal side of the optic disc. If serous macular detachment occurs, a patient's visual acuity may become as poor as 20/200 or worse.