Learn More
A new system for grading age-related maculopathy is described and measures of reliability are reported. A number of characteristics of age-related maculopathy are graded in a semiquantitative fashion from stereoscopic 30 degrees color fundus photographs, using a grid to define subfields, standard circles printed on plastic to assess size and area, and a(More)
PURPOSE To describe the cross-sectional relationships between age, blood pressure (BP), and quantitative measures of retinal vessel diameters in an older Australian population. METHODS Retinal photographs from right eyes of participants (n = 3654, aged 49+ years) in the Blue Mountains Eye study taken during baseline examinations (1992-1994) were(More)
PURPOSE To describe the cross-sectional relationship between retinal arteriolar and venular diameters with age and blood pressure. METHODS A population-based study was conducted in Beaver Dam, Wisconsin (n=4926, age range, 43-84 years). Retinal photographs of right eyes taken at the baseline examination (1988-90) were digitized. All arterioles and venules(More)
BACKGROUND Retinal microvascular abnormalities reflect damage from hypertension and other vascular processes. We examined the relation of such abnormalities to incident stroke. METHODS A cohort of 10358 men and women (aged 51 to 72 years) living in four US communities underwent retinal photography and standard grading for retinal microvascular(More)
Narrowing and other changes in retinal arterioles may reflect damage due to hypertension, which may predict stroke and other cardiovascular diseases independently of blood pressure level. Newly developed quantitative methods of assessing retinal narrowing are used to determine whether this sign is related only to current blood pressure or whether it also(More)
OBJECTIVE To examine the relation between diameters of the retinal arterioles and 10 year incidence of hypertension. DESIGN Population based prospective cohort study. SETTING Beaver Dam eye study. PARTICIPANTS 2451 normotensive people aged 43 to 84 years. MAIN OUTCOME MEASURES Diameters of retinal arterioles and venules measured from digitised(More)
PURPOSE To examine the cross-sectional relationship of the metabolic syndrome (hypertension, hyperglycemia, central obesity, and dyslipidemia) and retinal microvascular abnormalities in middle-aged men and women. METHODS A population-based, cross-sectional study involving 11,265 persons aged 49 to 73 years who had retinal photography from 1993 through(More)
BACKGROUND AND PURPOSE Retinal microvascular abnormalities reflect cumulative small vessel damage from elevated blood pressure and may reflect subclinical cerebral microvascular changes. We examined their associations with MRI-defined cerebral infarcts. METHODS Population-based, cross-sectional study of 1684 persons 55 to 74 years of age without a history(More)
Stereoscopic fundus photography of seven fields has become standard procedure for detecting diabetic retinopathy. However, the question has arisen as to whether adequate detection of retinopathy can be achieved with fewer fields. This question was investigated in a population-based study of 2694 diabetic persons. Retinopathy levels derived from the detailed(More)
This study assessed the correlation between computer-assisted retinal vessel measurements of right and left eyes, from subjects in a defined, community-based older population. Retinal photographs from participants in the Blue Mountains Eye Study were digitized. All retinal arterioles and venules located 0.5-1.0 disc diameters from the optic disc margin were(More)