The Hearst Health Prize: The First Five Years.

The Hearst Health Prize is the first national annual award for excellence in population health. The prize was established "to discover, support, and showcase the work of an individual, group, organization, or institution that has successfully implemented a population health program or intervention that has made a measurable difference" in health outcomes. Now, 5 years since the award's inception, this article reflects on how submissions for the prize collectively mirror - and may even predict - changes within the field of population health.

Normative values and predictors of retinal oxygen saturation.

Purpose: To determine normal retinal oxygen saturation (SO2) values measured with retinal oximetry in a multiethnic group of healthy subjects and to evaluate the association of retinal SO2 with demographic and clinical parameters.

Methods: Retinal oximetry was performed in both eyes of 61 normal healthy subjects. Global and quadrant venous (SvO2) and arterial oxygen saturation (SaO2), arteriovenous difference in SO2, and venular and arteriolar width were measured.