Quite a number of people develop nearsightedness or farsightedness during their lifetimes. "Nanodrops," a new eye drop developed by Israeli ophthalmologists, has successfully fixes corneas in pig eyes, and could potentially do the same for people. The eye drops are “a new concept for correcting refractory problems,” said David Smadja, one of the ophthalmologists who worked on the eye drops, at Shaare Zedek’s research day on Feb. 21, as reported by The Jerusalem Post. The patented drops use nanotechnology to improve vision. According to the National Eye Institute, both children and adults can develop either nearsightedness or farsightedness. Around five to 10 percent of Americans suffer from farsightedness, and it becomes more likely to develop if both parents are also farsighted. Nearsightedness, however, currently affects around 42 percent of Americans between the ages of 12 and 54, with those living in urban environments more than twice as likely to develop the condition.