I found a great thimble to wear on my left hand. It helps me push the fabric up a bit so I can catch a very few threads for very small stitches. Since it is hard for me to see and I do almost everything by touch, I appreciate how this thimble covers so much of my finger. Check it out. You can try it for free (I think).
http://momsmagicthimble.com/
Gwyn