In regards to retinal detachment, symptoms are red eye, blurry vision, black spots and lights, pain at times, noticeable dimness all in one eye only

Several things: Retinal detachment rarely causes a red eye or pain. There are a number of things that could cause your symptoms including an internal inflammation termed uveitis. You should quickly make an appointment with an ophthalmologist as some of the possibilities are serious and vision threatening.

Guarded Prognosis: Pain and red eye usually aren't associated with retinal detachment unless it is chronic or unless the eye has inflammation and the detachment is caused by a fluid build-up instead of a hole. Given your history there are other things that can dim vision, such as a blocked vessel. You should be carefully evaluated by a retina specialist to optimize your chances of recovery. Good luck.