Hellow guys, Welcome to my website, and you are watching Negative Dysphotopsia treated with piggyback IOL (Sulcoflex) / monovision - Dr Simon Chen. and this vIdeo is uploaded by Dr Simon Chen at 2016-09-26T09:21:57-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.