Evaluation Procedure This is a single center, interventional, randomized, unblinded two arm study assessing pain and analgesic use in post knee arthroplasty patients. The randomization ratio is 2:1 intervention to control. Both groups will receive routine post operative care. The intervention group will be treated with virtual reality spectacles. The control group will receive routine post operative care. Pain levels will be assessed using VAS and analgesic use.