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Forget LASIK: Safer, cheaper vision correction could be coming soon
Scientists are developing a surgery-free alternative to LASIK that reshapes the cornea using electricity instead of lasers. In rabbit tests, the method corrected vision in minutes without incisions.
In this work, the team constructed specialized, platinum "contact lenses" that provided a template for the corrected shape of the cornea, then placed each over a rabbit eyeball in a saline solution meant to mimic natural tears. The corneal stroma consists of orthogonally stacked collagen- fibril lamellae whose molecular composition and precise macromolecular geometry eliminate backscattered light and maintain the shape of the cornea. Optical coherence tomography (OCT), second-harmonic generation (SHG), and confocal microscopy suggest that EMR enables control over corneal contouring while maintaining the underlying macromolecular collagen structure and stromal cellular viability.
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