This might work. My vision is probably in the 20/600 or much worse range (Though correctable with lenses).. and without corrective lenses I have maybe a 2-3 inc

This might work. My vision is probably in the 20/600 or much worse range (Though correctable with lenses).. and without corrective lenses I have maybe a 2-3 inch maximum focal distance. Though, I do find that with my corrective lenses I lose that focal distance and end up with a 6inch-ish minmum focal distant.