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Coma of a single lens. Each cone of light focuses on different planes along the optical axis. In optics (especially telescopes), the coma (/ ˈ k oʊ m ə /), or comatic aberration, in an optical system refers to aberration inherent to certain optical designs or due to imperfection in the lens or other components that results in off-axis point sources such as stars appearing distorted ...
In the 1860s, Los Angeles County appointed a County Physician, and a small hospital for the poor in Los Angeles was established. [6] The Department of Charities was formed in 1913 and included five Divisions: County Hospital, County Farm, Outdoor Relief, Olive View Sanatorium, and Cemetery Divisions. [7]
In the Tehama County town of Corning, Skyline Sporting Dog operated a 281-dog and 336-cat donor kennel that also provides blood products to Animal Blood Resources International, according to a ...
In geometric optics, distortion is a deviation from rectilinear projection; a projection in which straight lines in a scene remain straight in an image.It is a form of optical aberration that may be distinguished from other aberrations such as spherical aberration, coma, chromatic aberration, field curvature, and astigmatism in a sense that these impact the image sharpness without changing an ...
In most cases, two thin lenses are combined, one of which has just so strong a positive aberration (under-correction, vide supra) as the other a negative; the first must be a positive lens and the second a negative lens; the powers, however: may differ, so that the desired effect of the lens is maintained. It is generally an advantage to secure ...
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The examination of the corneal reflex is a part of some neurological exams, particularly when evaluating coma, such as FOUR score. Damage to the ophthalmic branch (V 1) of the trigeminal nerve results in absent corneal reflex when the affected eye is stimulated. Stimulation of one cornea normally has a consensual response, with both eyelids ...
Los Angeles General Medical Center (also known as LA General and formerly known as Los Angeles County+USC Medical Center, County/USC, County General or by the abbreviation LAC+USC) is a 600-bed public teaching hospital located at 2051 Marengo Street in the Boyle Heights neighborhood of Los Angeles, California, and one of the largest academic medical centers in the United States.