Is rhegmatogenous retinal detachment partial?

Sometimes: Rhegmatogenous only refers to the cause of the detachment (a retinal tear or hole that causes this type of detachment), but does not tell how much of the retina has detached. So, any type of rd can be partial or complete.

Depends: Retinal detachments can be rhegmatogenous (due to a retinal tear or hole), tractional (from scar tissue), or serous (from inflammation, tumors, or other causes). All of these can be partial or total in how much of the retina is detached.

Commonly: Rhegmatogenous retinal detachment (RRD) is the technical term for a detachment from internal causes with no external trauma or previous eye disease. It starts at a peripheral place and produces a detachment which is partial unless neglected and it becomes major.