By the way, the -5.50 is in diopters (a measurement of lens strength). A negative number means you're nearsighted and a positive number means you're farsighted. I'm -4.5 in the left eye and -6.5 in the right eye. The difference between -4.5 and -6.5 is quite a bit. I can read the alarm clock with my left eye, but it is a total blur with my right eye. My brother was worse. He was -9.5 in one eye but had lasik and is now 20/20. I'd say go for lasik or prk.