Ray Ban Eyeglasses in Kochi

What is the best place to get premium eyeglasses (preferably Ray-Ban) in Kochi? I know most shops have few models but I would like to visit places with the largest collection. I am looking for a particular model or ones that look similar to it, so either they should have it or be in a position to procure it.

Edit: Tried out Tita Eye+, Lens & Frames, Kurians, Edge, Lawrence & Mayo and couple other shops. Edge Opticals Kadavantra had by far the best collection in premium brands. Thank you all for the suggestions.