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Landolt C. Lea test. logMAR chart. An eye chart is a chart used to measure visual acuity comprising lines of optotypes in ranges of sizes. Optotypes are the letters or symbols shown on an eye chart. [1] Eye charts are often used by health care professionals, such as optometrists, physicians and nurses, to screen persons for vision impairment.
VSP Vision Care (VSP) is a vision care health insurance company operating in Australia, Canada, Ireland, the United States, and the United Kingdom.It is a doctor-governed company divided into five businesses: “eye care insurance, high-quality eyewear, lens and lens enhancements, ophthalmic technology, and connected experiences to strengthen the relationship between patients and their eye ...
Hoya Corporation (Hoya株式会社, Hōya Kabushiki-gaisha) is a Japanese company manufacturing optical products such as photomasks, photomask blanks and hard disk drive platters, contact lenses and eyeglass lenses for the health-care market, [4] medical photonics, [5] lasers, photographic filters, medical flexible endoscopy equipment, and software.
The chart was designed by Ian Bailey [5] and Jan E. Lovie-Kitchin at the National Vision Research Institute of Australia. [1] [3] They described their motivation for designing the LogMAR chart as follows: "We have designed a series of near vision charts in which the typeface, size progression, size range, number of words per row and spacings were chosen in an endeavour to achieve a ...
Advocate Aurora Health (AAH) is a non-profit health care system with dual headquarters located in Milwaukee, Wisconsin, and Downers Grove, Illinois. As of 2021, the AAH system has 26 hospitals and more than 500 sites of care, with 75,000 employees, including 10,000 employed physicians. [2] The health system formed as a result of a merger ...
Vision rehabilitation. Vision rehabilitation (often called vision rehab) is a term for a medical rehabilitation to improve vision or low vision. In other words, it is the process of restoring functional ability and improving quality of life and independence in an individual who has lost visual function through illness or injury. [1][2] Most ...
Visionworks. Visionworks of America, Inc. (formerly known as Doctors' Value Vision) is an American company which operates or manages 711 optical retail stores in 40 U.S. states and the District of Columbia. [1][2][3] The company was incorporated in 1988. It is based in Downtown San Antonio, Texas, and has about 8,000 employees.
Aggregate US hospital costs were $387.3 billion in 2011—a 63% increase since 1997 (inflation adjusted). Costs per stay increased 47% since 1997, averaging $10,000 in 2011 (equivalent to $13,544 in 2023 [31]). [128] As of 2008, public spending accounts for between 45% and 56% of US healthcare spending. [129]