I was very near sighted all my life, till I lens replacement surgery. Now I can drive without glasses, but have a bit of uncorrected astigmatism, so opted for tri-focals. With my tri-focals I have perfect vision at distance and have the middle lens for the monitor and the speedometer in the car, and the bottom lens makes reading a pleasure! Blended lenses are a compromise for those vanity won't let them admit to anyone they are over 40!!