contracture

A condition in which an extraocular muscle loses its ability to fully relax, leading to permanent structural changes and inelasticity. It results in a persistent shortening or tightening of the affected muscle, causing a fixed ocular deviation or strabismus. Contractures can develop due to various factors, including trauma, inflammation, neurological disorders, or prolonged muscle overaction. Treatment may involve surgical lengthening or weakening of the contracted muscle to restore ocular alignment and motility.