Visited the Tesco Extra store due to a problem with my eye after a recent cataract operation. The staff were extremely helpful and understanding of my concern and fitted me in to see the opthalmologist. He was excellent and gave my eye a thorough examination. He reassured me that it was a minor problem and sold me some drops to help with the healing. I couldn't have asked for better service and left feeling much better than when I went in. Thank you to them all.