So she has bad eyesight? There are stronger glasses available, there are large magnifying glasses that can hang around your neck so that you can sew with them.
If she can't see, why does she not get rid of her sewing machine? Or doesn't she have kids or family who might want it?
Quilting is an art, and when you don't want to sew something, then it rapidly turns into work. And work should be paid for.