retinal detachments (RDs) are classified into rhegmatogenous (due to a hole in retina caused by vitreous traction usually) and non-regmatogenous which are not due to holes and due to things like tumor under retina. They are rare. Most all RDs are rhegmatogenous. Risk of RD in general population, not having had cataract surgery and no risk factors is low about 1 in 8000 to 12000. Your risk is about one in 4000-6000. Live healthy, avoid trauma, opt out of contact sports, don't go on whip-your-neck amusement park rides. See an ophthalmologist yearly.