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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 developed by his professor ...
Hospital, Clinic, Laboratory. Optometry is a specialized health care profession that involves examining the eyes and related structures for defects or abnormalities. Optometrists are health care professionals who typically provide comprehensive eye care. In the United States and Canada, optometrists are those that hold a Doctor of Optometry degree.
The site is the largest national park in the Philippines. Mt. Iglit-Baco National Park: Mindoro: ix, x (natural) 2015 The site is a declared ASEAN Heritage Park. Coron Island Natural Biotic Area Palawan: iii, ix, x (mixed) 2006 The site is within the Palawan UNESCO Biosphere Reserve. El Nido-Taytay Managed Resource Protected Area Palawan
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.
The Visayas ( / vɪˈsaɪəz / viss-EYE-əz ), or the Visayan Islands [2] ( Visayan: Kabisay-an, locally [kabiˈsajʔan]; Filipino: Kabisayaan [kɐbɪsɐˈjaʔan] ), are one of the three principal geographical divisions of the Philippines, along with Luzon and Mindanao.
The Philippine tarsier measures 85 to 160 mm (3.35 to 6.30 in) in height, making it one of the smallest primates. The small size makes it difficult to spot. The mass for males is between 80–160 g (2.8–5.6 oz), usually lighter for females, somewhat heavier than other tarsiers such as the pygmy tarsier. [10]
The Philippine Area of Responsibility. The Philippine Area of Responsibility (PAR) is an area in the Northwestern Pacific where PAGASA, the Philippines' national meteorological agency, monitors weather occurrences. Significant weather disturbances, specifically tropical cyclones that enter or develop in the PAR, are given Philippine-specific names.
The 50 largest islands have a combined area of around 321,000 square kilometers (124,000 sq mi) and a combined population of about 100.9 million (2015); thus they contain about 99% of the Philippines' total land area and total population (2015). Combined population of Luzon and Mindanao accounts for 80% of total population of the Philippines.