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In the most familiar acuity test, a Snellen chart is placed at a standard distance: 6 metres. At this distance, the symbols on the line representing "normal" acuity subtend an angle of five minutes of arc, and the thickness of the lines and of the spaces between the lines subtends one minute of arc. This line, designated 6/6 (or 20/20), is the ...
Ophthalmology ( / ˌɒfθælˈmɒlədʒi /, OFF-thal-MOL-ə-jee) [ 1] is a clinical and surgical specialty within medicine that deals with the diagnosis and treatment of eye disorders. [ 2] A former term is oculism . An ophthalmologist is a physician who undergoes subspecialty training in medical and surgical eye care. [ 3]
Description. Ph regions and provinces.svg. English: Map of the Philippines showing the location of all the regions and provinces. Notes: The map does not depict cities that are independent of any province. It also does not depict the status of Sabah, the Spratly Islands, and Scarborough Shoal as disputed Philippine territories. Date. 1 July 2019.
An example of the Landolt C eye chart (also known as the Japanese eye chart.). Numerous types of eye charts exist and are used in various situations. For example, the Snellen chart is designed for use at 6 meters or 20 feet, and is thus appropriate for testing distance vision, while the ETDRS chart is designed for use at 4 meters. [16]
Philippine Election Map 1992.PNG 2,000 × 3,120; 214 KB. Philippine map showing the areas with majority Christians and islam.png 1,240 × 1,624; 200 KB. Philippine Sea plate.JPG 655 × 795; 103 KB. Philippines foreign relations.PNG 1,425 × 625; 49 KB. Philippines poverty chart.png 500 × 780; 33 KB.
Enchanted Kingdom. / 14.2819473; 121.0953936. "The Magic Lives Forever!" Enchanted Kingdom (abbreviated as EK ), is a theme park in the Philippines. It is located along RSBS Boulevard (San Lorenzo Road) in Santa Rosa, Laguna. It has a land area of 25 hectares (62 acres). The park is managed and operated by Enchanted Kingdom Inc.
Intraocular lens. An Intraocular lens ( IOL) is a lens implanted in the eye usually as part of a treatment for cataracts or for correcting other vision problems such as short sightedness and long sightedness; a form of refractive surgery. If the natural lens is left in the eye, the IOL is known as phakic, otherwise it is a pseudophakic lens (or ...
Eyeglass prescription. Using a phoropter to determine a prescription for eyeglasses. An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist, that specifies the value of all parameters the prescriber has deemed necessary to construct and/or dispense corrective lenses appropriate for a patient.