Dick Bramer, 76, likes to watch birds. But for two years he couldn't see them well enough to identify the various species. Bramer suffered what doctors diagnosed as an ocular stroke (they said a small particle of plaque must have blocked blood flow to the optic nerve) in one eye. A friend happened to tell about Low Vision Restoration in Blaine, Minnesota. Optometrist Chris Palmer prescribes devices that can help improve people's vision when other glasses can't. Palmer fitted Bramer with the devices, which are like miniature binoculars or telescopes affixed to regular glasses. Bramer tried them out and suddenly...