Amsler grid Amsler grid The Amsler grid, used since 1945, is a grid of horizontal and vertical lines used to monitor a person's central visual field. The grid was developed by Marc Amsler, a Swiss ophthalmologist. It is a diagnostic tool that aids in the detection of visual disturbances caused by changes in the retina, particularly the macula (e.g. macular degeneration, Epiretinal membrane), as well as the optic nerve and the visual pathway to the brain. In the test, the person looks with each eye separately at the small dot in the center of the grid. Patients with macular disease may see
The Green Grid 26, 2007, APC by Schneider Electric, Rackable Systems, SprayCool (later part of Parker Hannifin), and VMware had joined the effort, and a meeting in April 2007 was announced.<br> In March, 2011, the Green Grid proposed a new sustainability metric, Water Usage Effectiveness (WUE), which attempts to take into account the amount of water used by data centers in their cooling systems In 2015, the Board of Directors had the following members: In 2007, the Board of Directors had the following members: The Green Grid The Green Grid is a nonprofit, industry consortium of end-users, policy-makers, technology providers, facility architects, and