Had a retina detachmend surgery a couple weeks ago but my vision still has not gotten back to normal. What should I do?

Discuss with surgeon. Depending on complexity of the surgery and how much of the retina is or was detached and how much scarring there was, your course may be entirely normal. Recovery from retinal surgery takes longer than most other types of surgery. Best is to ask your surgeon about your surgery.
Wait. Visual recover after this procedure may take months. Discuss this with your surgeon.