KFF Health News Jan 30 2026 Barbara Tuszynski was concerned about her vision but confident in her insurance coverage when she went to an eye clinic last May. The retiree, 70, was diagnosed with glaucoma in her right eye in 2019. She had a laser procedure to treat it in 2022, and she uses medicated drops in both eyes to prevent more damage. She is supposed to be checked regularly, she said. During the May appointment, Tuszynski's optometrist examined her eyes and reassured her that the glaucoma