“…More recent studies have demonstrated that retinal microvasculature may show abnormalities related to elevated concurrent blood pressure in older people [25,39,42] and to cardiovascular complications [6,26,27,38,40,41,43,44]. From a functional perspective, diseases with vascular dysregulation have been reported to induce vasospasms in the retinal vessels [2,17,24], and retinal blood flow abnormalities have been reported in otherwise healthy subjects with a propensity for systemic vascular dysregulation [13]. It has been suggested that such alterations may play a role in the pathogenesis of glaucoma [8,13] and also in other ocular diseases [9].…”