Infectious ‘Prions’ Found in the Eyes of Patients with Fatal Brain Disease

People with the rare and fatal brain disorder Creutzfeldt-Jakob disease (CJD) show signs of the disease in their eyes, according to a new study. The study found evidence of prions — the infectious proteins that cause the disease — in the eyes of nearly a dozen patients with CJD. The findings suggest that patients’ eyes could potentially provide a “window” to the brain that may help researchers diagnose the disease early, if new eye tests are developed. The results also raise concern about the potential for the disease to spread through routine eye exams…