The name says it all: Optical Bank does glasses and sunglasses and have been in business for 30 years. Located on Silom Rd, the small shop sells brands familiar to moms and dads like Lafayette and Rodenstock, and hipper selections from Christian Dior, Lacoste and Ray Ban. However, their main focus is on retro glasses from the 80s (think thick frames and aviators). Contact lens cleaner is also available for purchase.