GoKawiilMillions of Americans live with blurry vision, nearsightedness, or more severe sight problems. While glasses and contact lenses help many people, millions have turned to corrective procedures such as LASIK to sharpen their eyesight. But scientists are now exploring a very different approach that could someday reshape the eye without lasers, cutting, or invasive surgery.
Researchers from Occidental College and the University of California, Irvine have been developing an experimental technique called electromechanical reshaping (EMR). Instead of carving away tissue like LASIK, the method temporarily softens the cornea so it can be gently molded into a new shape.
Early tests in rabbit eyes suggest the technology may one day provide a cheaper, less invasive alternative to traditional laser eye surgery.
How LASIK Changes Vision
The cornea is the clear, dome-shaped surface at the front of the eye. It bends incoming light and helps focus images onto the retina. When the cornea is too steep, too flat, or unevenly shaped, vision becomes blurry.
LASIK corrects those problems by using lasers to remove tiny amounts of corneal tissue and permanently reshape the eye. Although the procedure is widely used and generally considered safe, it can sometimes lead to complications including dry eyes, glare, halos, and weakened corneal structure.
Michael Hill, a chemistry professor at Occidental College, says the basic concept behind LASIK still comes down to tissue removal.
"LASIK is just a fancy way of doing traditional surgery. It's still carving tissue -- it's just carving with a laser."
That limitation inspired researchers to search for a way to reshape the cornea without making incisions at all.
A Discovery That Happened by Accident
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