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  2. Schirmer's test - Wikipedia

    en.wikipedia.org/wiki/Schirmer's_test

    This test is used when a person experiences very dry eyes or excessive watering of the eyes. It can cause damage to the cornea. [1] A negative (more than 10 mm of moisture on the filter paper in 5 minutes) test result is normal. Both eyes normally secrete the same amount of tears. It is named for Otto Schirmer. [2]

  3. Tear break-up time - Wikipedia

    en.wikipedia.org/wiki/Tear_break-up_time

    It is based on the idea that, even when the TBUT is normal, if the blink interval is too slow it may cause breakage of tear film due to increased evaporation. The ocular Protection Index can be calculated by dividing tear break-up time by inter blink interval (IBI). [9] If the inter blink interval and TBUT are same dividing both give a value of ...

  4. Pediatric early warning signs - Wikipedia

    en.wikipedia.org/wiki/Pediatric_Early_Warning_Signs

    Anatomy and physiology is different in infants and children than adults and vary with age, which produces normal ranges for electrocardiograms. [26] Capillary refill is used across the lifespan as a cardiovascular assessment parameter because it is a non-invasive, quick test to help determine blood flow to the tissues.

  5. Hirschberg test - Wikipedia

    en.wikipedia.org/wiki/Hirschberg_test

    1.1 Interpretation. 1.2 Krimsky Test. 2 History. 3 ... the Hirschberg test, ... In a person with normal ocular alignment the light reflex lies slightly nasal from the ...

  6. Near visual acuity - Wikipedia

    en.wikipedia.org/wiki/Near_visual_acuity

    Near visual acuity or near vision is a measure of how clearly a person can see nearby small objects or letters.Visual acuity in general usually refers clarity of distance vision, and is measured using eye charts like Snellen chart, LogMAR chart etc. Near vision is usually measured and recorded using a printed hand-held card containing different sized paragraphs, words, letters or symbols.

  7. Snellen chart - Wikipedia

    en.wikipedia.org/wiki/Snellen_chart

    A person taking the test covers one eye from 6 metres or 20 feet away, and reads aloud the letters of each row, beginning at the top. The smallest row that can be read accurately indicates the visual acuity in that specific eye. The symbols on an acuity chart are formally known as "optotypes". Variation of Snellen chart with another letter ...

  8. Reference ranges for blood tests - Wikipedia

    en.wikipedia.org/wiki/Reference_ranges_for_blood...

    Reference ranges (reference intervals) for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples. Reference ranges for blood tests are studied within the field of clinical chemistry (also known as "clinical biochemistry", "chemical pathology" or "pure blood chemistry"), the ...

  9. Neurological pupil index - Wikipedia

    en.wikipedia.org/wiki/Neurological_Pupil_Index

    The Neurological Pupil index, or NPi, is an algorithm developed by NeurOptics, Inc., that removes subjectivity from the pupillary evaluation. A patient's pupil measurement (including variables such as size, latency, constriction velocity, dilation velocity, etc.) is obtained using a pupillometer, and the measurement is compared against a normative model of pupil reaction to light and ...