OverviewA metopic ridge is a ridge of bone or suture line on the forehead between the two halves of the frontal bone. The ridging is caused when the two halves close prematurely.
Update Date 11/12/2013
Updated by: Franklin W. Lusby, MD, Ophthalmologist, Lusby Vision Institute, La Jolla, California. Also reviewed by David Zieve, MD, MHA, Bethanne Black, and the A.D.A.M. Editorial team.