He just tweeted out that he had to undergo surgery yesterday morning for a detached retina. The surgery went well but he's effectively blind right now while recovering.

Good luck to him. Obviously he suffered severe damage to his eyesight in Afghanistan in 2012 and as he put it, he really doesn't have one good eye, but half a good eye. Hopefully the surgery will correct the new issue and he'll be able to get back to the vision he had prior to his latest problem.

Here's hoping for compassion and relief for all who are suffering various maladies, wherever they may live.

Wishing him a swift recovery.