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Tractional Retinal Detachment (TRD)

Anytime subretinal fluid accumulates in the space between the neurosensory retina and the underlying retinal pigment epithelium (RPE), a retinal detachment occurs. Depending on the mechanism of subretinal fluid accumulation, retinal detachments traditionally have been classified into rhegmatogenous, tractional, and exudative.

A tractional retinal detachment (TRD) is the second most common type of retinal detachment after a rhegmatogenous retinal detachment (RRD).