Choroidal rupture

The most common cause of choroidal rupture is blunt ocular trauma. Such trauma affects not only the choroid, but also Bruch's membrane and the retinal pigment epithelium (RPE).

Sclera and retina tend to be less affected by blunt trauma because these tissues are either stronger (sclera) or more elastic (retina). Indirect choroidal rupture refers to the situation where the impact of trauma sends a shockwave to the posterior eye, resulting in rupture of the posterior tissues.

Direct choroidal rupture is more likely to involve the anterior choroid and is the local result of the direct impact of trauma causing tissue necrosis.