You went in for what was supposed to be routine cataract surgery at a Nassau County hospital, and now the vision in your right eye is gone. Or maybe you were grinding metal at a fabrication shop in the Bronx when a fragment tore through a face shield that never should have passed inspection. Either way, you're living a different life now — one where driving, working, and even walking down a crowded sidewalk feel dangerous. And you're asking one question: what is a vision loss