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2. List of optometric abbreviations - Wikipedia

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

   Binocular single vision: BV: Binocular vision: BVD: Back vertex distance BVP: Back vertex power CD: Centration distance C/D: Cup–disc ratio CF: Count fingers vision – state distance c/o or c.o. Complains of CT: Cover test c/u: Check up CW: Close work Δ: Prism dioptre D: Dioptres DC: Dioptres cylinder DNA: Did not attend DOB: Date of birth ...

3. Humphrey visual field analyser - Wikipedia

   en.wikipedia.org/wiki/Humphrey_Visual_Field_Analyser

   Used for neuro-ophthalmic conditions and general screening [5] as well as early detection of glaucoma [6] [7] 30-2: Measures 30 degrees temporally and nasally and tests 76 points. Used for general screening, early glaucoma and neurological conditions [6] The above tests can be performed in either SITA-Standard or SITA-Fast.

4. Eye examination - Wikipedia

   en.wikipedia.org/wiki/Eye_examination

   The standard definition of normal visual acuity (20/20 or 6/6 vision) is the ability to resolve a spatial pattern separated by a visual angle of one minute of arc. The terms 20/20 and 6/6 are derived from standardized sized objects that can be seen by a "person of normal vision" at the specified distance.

5. Get your child early vision screening to prevent permanent ...

   www.aol.com/child-early-vision-screening-prevent...

   The American Academy of Ophthalmology and the American Association for Pediatric Ophthalmology and Strabismus recommend screening for the early detection and treatment of eye and vision problems ...

6. 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]

7. Visual field test - Wikipedia

   en.wikipedia.org/wiki/Visual_field_test

   Threshold static perimetry is generally done using automated equipment. It is used for rapid screening and follow-up of diseases involving deficits such as scotomas, loss of peripheral vision and more subtle vision loss. Perimetry testing is important in the screening, diagnosing, and monitoring of various eye, retinal, optic nerve and brain ...

8. Lea test - Wikipedia

   en.wikipedia.org/wiki/Lea_test

   This enables preschool children to be tested for visual acuity long before they become familiar with the letter and numbers used in other standard vision charts. [citation needed] The LEA Symbols Test is often used in the form of the three-dimensional (3-D) LEA Puzzle. This puzzle incorporates color along with the four standard optotypes to ...

9. Ishihara test - Wikipedia

   en.wikipedia.org/wiki/Ishihara_Test

   Within the pattern are dots which form a number or shape clearly visible to those with normal color vision, and invisible, or difficult to see, to those with a red–green color vision defect. Other plates are intentionally designed to reveal numbers only to those with a red–green color vision deficiency, and be invisible to those with normal ...