EDM glasses challenge

I really enjoyed doing this drawing. My glasses were on a windowsill and I liked the semi transparent shadows and seeing how the shadow behind the glasses were distorted by my very strong prescription lenses. I don't know how anyone else of my age is coping with this starting to go long-sighted whilst also being very short-sighted. I'm finding it a complete pain in the neck. I've been advised that as I use a monitor a great deal, varifocals aren't suitable because you get funny rings on the sides of your vision. However when I'm drawing it's really difficult. In this instance I was wearing my distance glasses whilst drawing the reading glasses, which was fine for looking at the subject - but very difficult for seeing the pencil and sketchbook.