"There are 34 conditions associated with blurred vision, floating spots or strings in vision, sensitive to light and visual halos around lights." http://symptomchecker.webmd.com/multiple-symptoms?symptoms=blurred-vision%7Cfloating-spots-or-strings-in-vision%7Csensitive-to-light%7Cvisual-halos-around-lights&symptomids=42%7C285%7C198%7C251&locations=3%7C3%7C3%7C3