So far they've only targeted corneal damage, which is estimated to be the cause of sight loss in about 1.5 million people every year. The simplicity and relatively low cost of the procedure could make it available in more impoverished areas. Even a congenital defect in both eyes, aniridia, was cured using stem cells taken from a different part of the eye. Once the process is perfected and tested extensively, researchers think in the future they can use it to cure blindness that afflicts other parts of the eye. While they haven't mentioned curing regular near- or far-sightedness, I'm waiting for my own stem cell-laced contacts to cure my –4.0 crud eyesight without having to go under the laser!