Retinal detachment is the separation of the outer retinal pigment epithelium from the inner neurosensory-retina. When the force which holds the retinal attachment fails, fluid accumulates in the subretinal space causing the separation (1).
Separation of the retina can be caused by
Most retinal breaks are caused by Posterior vitreous detachment (PVD). It is an age dependant process caused by the vitreous partly separating from the retinal surface (2).
When the retina detaches it takes its blood supply with it; the exception here is the macula. This means that appropriate treatment may restore the sight. However, prompt surgery is required to arrest progressive detachment and complete loss of sight.
Last reviewed 04/2019