This App Finds Your Prescription By Scanning Your Eyeglasses
by Elizabeth Yuko from Lifehacker on (#591NS)
Sometimes you just need (or want) a new pair of eyeglasses, even though you can see perfectly well using the ones you already have. In situations where your glasses are no longer cutting it and you probably need a new prescription, that's the job for an optometrist or ophthalmologist. But let's say that your current...