I had purchased two Vision Express sunglasses from Brookfields Mall outlet, Coimbatore on 13 Jan 12 out of which one bearing model no SG 81012C Black bill no 9 has been found to be causing utter discomfort, nausea and headache within 30 minutes of wearing. Alternate pieces have been offered but all of them have same problem. Other models on display were not acceptable to me as I didnt like the models. My request for a refund was accepted with a lot of fuss but so far no news about the refund. Planning to get legal recourse.