The most common cause of retinal detachment is the formation of a hole or tear, which can occur as part of the normal aging process or during cataract surgery or trauma. The hole allows the vitreous fluid to leak out between the layers, thus separating the sensory retinal layer from its blood supply in the choroid. Patients who have had previous cataract surgery, severe injury, or a family history of detachment, glaucoma, and nearsightedness are more likely to experience a retinal detachment.

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