When in BKK, a big chain is Top Charoen Optical (www.topcharoen.co.th). They are all over the country.
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by bhatnasx:
I know nothing about that, but that is an excellent idea! I'll be in BKK soon and I'm going to look into that. </font>