What does scotomy mean?

Definitions for scotomy
sco·to·my

This dictionary definitions page includes all the possible meanings, example usage and translations of the word scotomy.


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Samuel Johnson's Dictionary

  1. Scotomynoun

    A dizziness or swimming in the head, causing dimness of sight, wherein external objects seem to turn round. Ains. and Nathan Bailey

    Etymology: σϰότωμα.

Wikipedia

  1. scotomy

    A scotoma is an area of partial alteration in the field of vision consisting of a partially diminished or entirely degenerated visual acuity that is surrounded by a field of normal – or relatively well-preserved – vision. Every normal mammalian eye has a scotoma in its field of vision, usually termed its blind spot. This is a location with no photoreceptor cells, where the retinal ganglion cell axons that compose the optic nerve exit the retina. This location is called the optic disc. There is no direct conscious awareness of visual scotomas. They are simply regions of reduced information within the visual field. Rather than recognizing an incomplete image, patients with scotomas report that things "disappear" on them.The presence of the blind spot scotoma can be demonstrated subjectively by covering one eye, carefully holding fixation with the open eye, and placing an object (such as one's thumb) in the lateral and horizontal visual field, about 15 degrees from fixation (see the blind spot article). The size of the monocular scotoma is 5×7 degrees of visual angle. A scotoma can be a symptom of damage to any part of the visual system, such as retinal damage from exposure to high-powered lasers, macular degeneration and brain damage. The term scotoma is also used metaphorically in several fields. The common theme of all the figurative senses is of a gap not in visual function but in the mind's perception, cognition, or world view. The term is from Greek σκότος/skótos, "darkness."

Webster Dictionary

  1. Scotomynoun

    dizziness with dimness of sight

  2. Scotomynoun

    obscuration of the field of vision due to the appearance of a dark spot before the eye

  3. Etymology: [NL. scotomia, from Gr. dizziness, fr. to darken, fr. sko`tos darkness: cf. F. scotomie.]

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Numerology

  1. Chaldean Numerology

    The numerical value of scotomy in Chaldean Numerology is: 2

  2. Pythagorean Numerology

    The numerical value of scotomy in Pythagorean Numerology is: 2

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"scotomy." Definitions.net. STANDS4 LLC, 2024. Web. 19 Mar. 2024. <https://www.definitions.net/definition/scotomy>.

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