Retinoschisis is a condition where the retina splits apart in a small area. The retina is like plywood, with many layers, and sometimes the layers separate. In the retina, this splitting apart occurs in an area of the retina responsible for vision in the outer periphery. Most patients with retinoschisis are asymptomatic and do not develop problems. A very small percentage of patients with these observations develop a retinal detachment. Retinoschisis should be monitored with frequency and patients are urged to report any changes in vision promptly.