
The life painting I did of
Declan recently was one that I nearly liked and I didn't quite know why. So I went back to it and did a bit more work simplifying the background and loosing a few edges.
I was fairly pleased with the result and then I happened to look at it without my glasses. (See my Photoshop approximation below)

It had a good deal of truth and accuracy in the tonal values and colouring that were obscured by the detail that I could see with my spex on.
This is something of the effect that I am trying to achieve when I use my big blender brush to soften the edges that I am so often inclined to over emphasize.
Being able to look at your work like this is probably the only advantage to being short-sighted.