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Retinal imaging, a noninvasive procedure for assessing microvascular abnormalities, might prove useful for assessing Alzheimer disease (Translat Psychiatry 2013; 3:e233). In this first-of-its-kind study on whether schizophrenia is also associated with retinal imaging differences, investigators applied similar techniques to 38-year-old individuals drawn from a large prospective epidemiological study — 27 individuals with schizophrenia, 110 with hypertension, 154 with prediabetes/diabetes, 210 with persistent tobacco dependence, 188 with persistent depression (as psychiatric controls), and 412 healthy comparison participants.
In analyses adjusting for arteriolar caliber, sex, blood pressure, hemoglobin A1c levels, and persistent tobacco depend…