I just visited a good friend who wants to do more woodworking in his retirement. Yesterday he had glaucoma surgery and 90% of his optic nerve is gone in one eye. His clear vision in that eye is in a very limited area, sort of like tunnel vision. His other eye is fine.

He will retire soon and had hoped to do a lot of woodworking. He now is thinking this is unlikely.

So my question is, Is there a safe way to use tools with possible problems in depth perception?

His power tools are a table saw and a built in router table. I am thinking about extra heavy duty reliance on push sticks and feather boards and jigs - maybe even going as far as a Saw-Stop. For the router table, the same use of extra length push sticks, sleds, etc.

What do you think? Should he give up a dream of woodworking or can he adopt effective safety techniques despite this new handicap?