Tonya Davison, 36, of Blackstone, Va., tries on her new reading glasses at Dr. David Armstrong’s office in Roanoke on Monday, Dec. 21, 2015. “I’ve never been able to see my own face in the mirror,” Davison said, who has low vision. Davison heard about Dr. Armstrong through a recommendation from another optometrist, Dr. Kingsley of Farmville. Davison wanted help with reading, depth perception and far sightedness.