scotoma

(redirected from arcuate scotoma)
Also found in: Thesaurus, Medical, Encyclopedia.
Related to arcuate scotoma: paracentral scotoma, centrocecal scotoma

sco·to·ma

 (skə-tō′mə)
n. pl. sco·to·mas or sco·to·ma·ta (-mə-tə)
An area of diminished vision within the visual field.

[New Latin scotōma, from Late Latin, dim sight, from Greek skotōma, dizziness, from skotoun, to darken, from skotos, darkness.]

sco·to′ma·tous adj.

scotoma

(skɒˈtəʊmə)
n, pl -mas or -mata (-mətə)
1. (Pathology) pathol a blind spot; a permanent or temporary area of depressed or absent vision caused by lesions of the visual system, viewing the sun directly (eclipse scotoma), squinting, etc
2. (Psychology) psychol a mental blind spot; inability to understand or perceive certain matters
[C16: via Medieval Latin from Greek skotōma giddiness, from skotoun to make dark, from skotos darkness]
scotomatous adj

sco•to•ma

(skoʊˈtoʊ mə)

n., pl. -mas, -ma•ta (-mə tə)
loss of vision in a part of the visual field; blind spot.
[1535–45; < Greek skótōma dizziness = skotō-, variant s. of skotoûn to darken, stupefy, make dizzy, v. derivative of skótos darkness, dizziness + -ma resultative n. suffix]
sco•tom′a•tous (-ˈtɒm ə təs) adj.

scotoma, scotomy

a blind spot or blind area in the field of vision.
See also: Blindness
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.scotoma - an isolated area of diminished vision within the visual fieldscotoma - an isolated area of diminished vision within the visual field
vision defect, visual defect, visual disorder, visual impairment - impairment of the sense of sight
annular scotoma - a circular scotoma surrounding the center of the field of vision
central scotoma - a scotoma that involves the fixation point
hemianopic scotoma - a scotoma involving half of the visual field
paracentral scotoma - a scotoma that is adjacent to the fixation point
flittering scotoma, scintillating scotoma - a localized area of diminished vision edged by shimmering colored lights; in many people it indicates the onset of migraine
Translations

sco·to·ma

n., Gr. escotoma, área del campo visual en la cual existe pérdida parcial o total de la visión.
References in periodicals archive ?
The visual field in the right eye was normal, and the left eye showed a shallow inferior arcuate scotoma.
His visual field (Humphrey 30-2) showed larger blind spots in both eyes; superior altitudinal scotoma and inferior arcuate scotoma were detected in the left eye, while concentric scotoma was present in his right eye (Figure 2).
Visual field defects in nonarteritic anterior ischemic optic neuropathy (NA-AION) include altitudinal field defect (classically occurring in the inferior hemi field), central scotoma, arcuate scotoma, and quadrantic defects.