Search results
Results From The WOW.Com Content Network
Snellen chart. Purpose. Snellen chart is used to estimate visual acuity (last three rows are 20/15, 20/13 and 20/10) A Snellen chart is an eye chart that can be used to measure visual acuity. Snellen charts are named after the Dutch ophthalmologist Herman Snellen who developed the chart in 1862 as a measurement tool for the acuity formula ...
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]
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.
An International Certificate of Vaccination or Revaccination Against Yellow Fever, issued in the Soviet Union in 1985. The International Certificate of Inoculation and Vaccination was established by the International Sanitary Convention for Aerial Navigation (1933) in The Hague, which came into force on 1 August 1935 and was amended in 1944. [ 3]
Cataract surgery is the most common application of lens removal surgery, and is usually associated with lens replacement. It is used to remove the natural lens of the eye when it has developed a cataract, a cloudy area in the lens that causes visual impairment. [ 4][ 10] Cataracts usually develop slowly and can affect one or both eyes. [ 4]
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 ...
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.
Usage. {{Provinces of the Philippines image map}} Specifying an image size (default is 1080px) {{Provinces of the Philippines image map|500px}} The above documentation is transcluded from Template:Provinces of the Philippines image map/doc. ( edit | history) Editors can experiment in this template's sandbox ( create | mirror) and testcases ...