In which area does the retina most commonly detach?

The retina most commonly detaches in the superior temporal area because this region is subject to the greatest amount of mechanical stress and anatomical factors that predispose it to detachment. The superior temporal quadrant of the retina is generally more prone to issues like retinal tears and holes due to the normal aging process, which can lead to the development of a posterior vitreous detachment. This condition occurs when the vitreous gel pulling away from the retina creates traction that can lead to a retinal tear, especially in the superior temporal area.

In addition, the superior temporal area is located closer to the site where the retina is firmly attached to the underlying structures, such as the optic nerve head and the ora serrata, which can create zones of weakness during vitreous changes. This predisposition, combined with the role of the superior temporal region in retinal blood supply, contributes to its higher incidence of detachment compared to other regions.

While other areas, like the inferior nasal or inferior temporal regions, may experience detachments, they are less common than in the superior temporal area. The central fovea is crucial for vision but is not typically a site of detachment; detachments generally start at the periphery of the retina before involving more central areas.