At what prescription do you become legally blind?

At what prescription do you become legally blind? You might think that recognising whether you are blind is a simple thing. I mean, if you can’t see anything beyond your nose – that should give you a hint, right? Or the fact that your glasses and lenses have become a lifeline that you can’t do without. While these are telltale signs that something isn’t right, nothing is ever that simple – least of all your vision. Our eyes are one…