Your grandmother still has what it takes! That is a beautiful sweater. Tell her a lot of fellow knitters around the world have looked at her sweater and think it is great. I love the shape, how it comes to a vee in the front with the ribbing and the other design.
I know even totally blind people knit. It must require a lot of paying attention. :-)
Wow I aspire to knit something as beautiful as that!
One of the people who inspired me to knit was a lady I saw here on our news who had just had her sight restored after 30 years and she was in hospital knitting on tiny needles and at great speed. I thought 'if she can do it, so can I'.