central scotoma
- noun
- /ˈsɛntrəl skəˈtoʊmə/
- Specialized
- Legge et al. (1997) showed that people with central scotomas make more regressions while reading because some letters of a word fall on a scotoma on the retina and are thus not visible.
Examples
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For children with central scotomas (blind spots), parts of words can fall on the retina just at the location of a scotoma (Legge, Klitz, & Tjan, 1997), so that some of the constituent letters of a word may not be seen.
Academic text (2004) -
A central scotoma creates a blind area in the center of one's vision, making it difficult to focus on faces.
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The left eye also exhibited a large central scotoma, dyschromatopsia, and a left afferent pupillary defect.
Academic text (2005) -
Legge et al.'s (1997) model predicts that people with central scotomas need to make more regressions while reading.
Academic text (2004) -
Accordingly, Trauzettel-Klosinski (2002) found compensatory strategies that were related to high cortical plasticity in individuals who were affected by a central scotoma.
Academic text (2007) -
This finding is in line with the finding of Bullimore and Bailey (1995) that readers with central scotomas need to make more regressions than do readers without central scotomas.
Academic text (2004) -
This finding is in line with the finding of Bullimore and Bailey (1995) that readers with central scotomas need to make more regressions than do readers without central scotomas.
Academic text (2004) -
The patient must have a corrected visual acuity in his or her best eye of 20/70 or worse, or have a documented central scotoma, a general constriction of the visual fields, or bilateral hemianopia.
Academic text (2007) -
Although the instrument used to determine the visual field, the Friedman Visual Field Analyzer, has its limitations in detecting minimal central scotomas, we do not believe that the detection of such small scotomas would have altered the results.
Academic text (2004) -
Individuals with central scotoma may struggle to read because the letters at their fixation point are not visible.
Synonyms
A small area in the eye where the optic nerve enters and you cannot see
A blind spot in your vision
How Central
Surface Forms
Morphology
The phrase is a straightforward adjective+noun composition: 'central' (in or near the middle) simply specifies the location of a 'scotoma' (a localized loss of vision). Given knowledge of both constituents, a learner can directly infer a blind spot affecting the center of the visual field, so the meaning is transparently derivable.
Etymology
Central scotoma paints a clear picture: central means the middle and scotoma is a dark spot in sight. That's why it describes a 'blind spot' in the middle of what you see.