Roy and Janal1 are to be commended for documenting sodium intake as a risk factor for progression of diabetic retinopathy in a cohort of 762 African American individuals with type 1 diabetes mellitus. Their analysis establishes new ground in the understanding of diabetic retinopathy pathogenesis. Because the authors did not mention in their article a previous study in which diabetic retinopathy reversal was meticulously documented following adherence to a low-sodium diet, I feel inclined to do so. The study, performed 52 years ago by members of the Duke University Department of Medicine,2 also used fundus photography, but in an era long before the technique was routinely accepted as an essential documentation tool for ophthalmological research.
Correspondence: Dr Hawkins, Retina-Vitreous Associates, 1200 Binz, Ste 400, Houston, TX 77004 (office@rvahouston.com).
Financial Disclosure: None reported.
Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature
Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal
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