Prospective cohort study of retinal vessel diameters and risk of hypertension

In this paper by Tien Yin Wong and colleagues, an error relating to the retinal photographs persisted to publication (10 July, pp 79-82). Clearly, for the caption to be correct, the photographs need to be the other way around—that is, the one on the left (not the right) shows narrowed retinal arterioles, and the one on the right shows normal retinal arterioles.