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Anisometropia is a condition in which a person's eyes have substantially differing refractive power. [1] Generally, a difference in power of one diopter (1D) is the threshold for diagnosis of the condition.
The ODbL does not require any particular license for maps produced from ODbL data. Prior to 1 August 2020, map tiles produced by the OpenStreetMap Foundation were licensed under the CC-BY-SA-2.0 license. Maps produced by other people may be subject to other licences.
Module:Location map/data/USA Virginia is a location map definition used to overlay markers and labels on an equirectangular projection map of Virginia. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.
Rockfish Gap is underlain by greenstones of the Catoctin Formation, a late Neoproterozoic geologic unit exposed throughout the Blue Ridge Mountains in Virginia, Maryland, and southern Pennsylvania. Catoctin greenstones were originally erupted as basaltic lava flows 550 to 565 million years ago and later metamorphosed and deformed during the ...
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Other terminology include anisometropia, when the two eyes have unequal refractive power, [18] and aniseikonia which is when the magnification power between the eyes differ. [19] Refractive errors are typically measured using three numbers: sphere, cylinder, and axis. [20] Sphere: This number denotes the strength of the lens needed to correct ...
Moccasin Gap is the more dramatic of only two true, natural gaps in the Clinch Mountain ridge. It is located in the present day state of Virginia, in Scott County.It lies between two cities; Weber City is built into the south side of the gap and Gate City is to the northwest.
This list of Virginia Blue Ridge gaps is listed starting from north to south.. Potomac Water Gap, elevation 240 feet, Harpers Ferry, on U.S. Route 340; Keyes Gap, originally Vestal's Gap, elevation 895 feet, on Virginia State Route 9 in Loudoun County