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Radial keratotomy (RK) is a refractive surgical procedure to correct myopia (nearsightedness). It was developed in 1974 by Svyatoslav Fyodorov , a Russian ophthalmologist . It has been largely supplanted by newer, more accurate operations, such as photorefractive keratectomy , LASIK , Epi-LASIK and the phakic intraocular lens .
The Ridge-and-Valley Appalachians, also called the Ridge and Valley Province or the Valley and Ridge Appalachians, are a physiographic province of the larger Appalachian Highlands division. The physiographic province is divided into three sections: the Hudson Valley, the Central, and the Tennessee.
When a new option is chosen, the previously chosen option is unselected. A radio button or option button[citation needed] is a graphical control element that allows the user to choose only one of a predefined set of mutually exclusive options. [ 1] The singular property of a radio button makes it distinct from checkboxes, where the user can ...
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List of counties in Ohio. There are 88 counties in the U.S. state of Ohio. Nine of them existed at the time of the Ohio Constitutional Convention in 1802. [ 1] A tenth county, Wayne, was established on August 15, 1796, and encompassed roughly the present state of Michigan. [ 2] During the Convention, the county was opposed to statehood, and was ...
Appalachian Ohio is a bioregion and political unit in the southeastern part of the U.S. state of Ohio, characterized by the western foothills of the Appalachian Mountains and the Appalachian Plateau. The Appalachian Regional Commission defines the region as consisting of thirty-two counties. [ 1] This region roughly overlaps with the ...
QB Will Howard, Ohio State Howard struggled early in his career at Kansas State before developing into one of the top players in the Big 12, leading to his offseason transfer to Ohio State .
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