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2. Maddox rod - Wikipedia

   en.wikipedia.org/wiki/Maddox_rod

   The test is based on the principle of diplopic projection. [1] Dissociation of the deviation is brought about by presenting a red line image to one eye and a white light to the other, while prisms are used to superimpose these and effectively measure the angle of deviation (horizontal and vertical).

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4. Eye chart - Wikipedia

   en.wikipedia.org/wiki/Eye_chart

   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]

5. List of instruments used in ophthalmology - Wikipedia

   en.wikipedia.org/wiki/List_of_instruments_used...

   ••Snellen's near chart (1/17th reduction of distant chart)-do-; standard chart of alphabets; video link •Colour vision: to test colour vision ••Ishihara's chart: to determine the type of colour blindness Stenopaeic slit: detection of axis of the cylindrical (astigmatism) power of the eye; glaucoma testing Implants - •Intraocular lens

6. Subjective refraction - Wikipedia

   en.wikipedia.org/wiki/Subjective_refraction

   Once again the patient's fixation is directed to a round letter on the chart. The 0.50JCC is presented straddling the axis of the cylinder lens in the trial frames. [6] The patient is shown the lens in both flip positions. Both options may be blurry, the patient is asked to indicate which is clearer of the two. [6]

7. List of optometric abbreviations - Wikipedia

   en.wikipedia.org/wiki/List_of_optometric...

   Visual acuity with Near chart without correctors Visual acuity with eye chart at Near 15.7 inches (400 mm) and without (sc: Latin sine correctore) correctors (spectacles); Ncc is with (cc: Latin cum correctore) correctors. See Visual_acuity#Legal_definitions: VA OS Left visual acuity VA OD Right visual acuity VDU Visual display unit VF Visual field

8. Boydton, VA Weather - Hourly Forecasts and Local ... - AOL

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   Get the Boydton, VA local weather forecast by the hour and the next 10 days.

9. Trump mocks Justin Trudeau over top official’s shocking exit ...

   www.aol.com/news/trump-mocks-justin-trudeau-top...

   Donald Trump mocked Canadian Prime Minister Justin Trudeau after his top minister’s surprise resignation following a clash on how to handle the president-elect’s looming tariffs.