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  2. Ocular dominance - Wikipedia

    en.wikipedia.org/wiki/Ocular_dominance

    Ocular dominance, sometimes called eye preference or eyedness, [1] is the tendency to prefer visual input from one eye to the other. [2] It is somewhat analogous to the laterality of right- or left- handedness ; however, the side of the dominant eye and the dominant hand do not always match. [ 3 ]

  3. Punnett square - Wikipedia

    en.wikipedia.org/wiki/Punnett_square

    A Punnett square showing a typical test cross. (green pod color is dominant over yellow for pea pods [1] in contrast to pea seeds, where yellow cotyledon color is dominant over green [2]). Punnett squares for each combination of parents' colour vision status giving probabilities of their offsprings' status, each cell having 25% probability in ...

  4. Test cross - Wikipedia

    en.wikipedia.org/wiki/Test_cross

    The first uses of test crosses were in Gregor Mendel’s experiments in plant hybridization.While studying the inheritance of dominant and recessive traits in pea plants, he explains that the “signification” (now termed zygosity) of an individual for a dominant trait is determined by the expression patterns of the following generation.

  5. Eye examination - Wikipedia

    en.wikipedia.org/wiki/Eye_examination

    An eye examination, commonly known as an eye test, [1] is a series of tests performed to assess vision and ability to focus on and discern objects. [2] It also includes other tests and examinations of the eyes. [2] Eye examinations are primarily performed by an optometrist, ophthalmologist, or an orthoptist.

  6. Binocular rivalry - Wikipedia

    en.wikipedia.org/wiki/Binocular_rivalry

    This is referred to as contour dominance. Occasionally however, the blank field, or even the dark field of a closed eye, can become visible, making the image invisible for about as long as it would be invisible were it in rivalry with another image of equal stimulus strength. When an image is presented to one eye and a blank field to the other ...

  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. 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]

  9. Hirschberg test - Wikipedia

    en.wikipedia.org/wiki/Hirschberg_test

    A cover test can tell you the extent of the eso/exo-tropia. Individuals can suffer from several tropias at once. In Graves ophthalmopathy , it is not uncommon to see an esotropia (due to pathology of the medial rectus muscle ) co-morbid with a hypotropia (due to pathology of the inferior rectus muscle ).