paracentral scotoma


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Related to paracentral scotoma: Seidel scotoma

par·a·cen·tral sco·to·ma

a scotoma adjacent to the fixation point.
References in periodicals archive ?
In this study, DH were more than 3.5 times frequent in patients with paracentral scotoma being not only the predictor of progression as suggested by some authors [32-34] but also the indicator of localisation of the defect in the paracentral region of VF and endangerment of an early visual loss, which was described previously by Kang et al.
It could potentially be helpful in identifying the patients endangered with an early loss of useful visual acuity because of paracentral scotoma.
A better outcome was noted in parafoveal CNVMs but patients would notice a paracentral scotoma. This treatment was nevertheless shown to be better than the natural history of wet AMD in the Macular Photocoagulation Study.
Rarely, if a lesion should damage the tip of one occipital lobe, the patient may complain of reading difficulties (despite no apparent macular abnormality) and Amsler grid testing or a central 10-2 threshold programme with Humphrey automated perimetry may reveal a small homonymous paracentral scotoma (Figure 3 1).
Within the macula, retinal architecture was most intact at the fovea, consistent with the sparing of central visual acuities relative to the surrounding paracentral scotomas. The choroid was normal in thickness, except for an anticipated amount of thinning in case 1 related to high myopia.
The use of OCT angiography and en face SD-OCT imaging as an adjunct test to map out correlative paracentral scotomas during follow-up allowed us to evaluate cilioretinal artery occlusion in the best way due to obtaining satisfactory images of the normal retinal vascular networks and areas of nonperfusion and congestion at various retinal levels.
(11) showed in their study that more than half of the patients developed paracentral scotomas after ILM peeling.
Central and paracentral scotomas were noted on Amsler grid testing, worse in the right eye, and confirmed with Humphrey visual field testing (Figure 1).
Early glaucomatous field defects most often take the form of localised relative paracentral scotomas. Defects in the nasal field are particularly common, and sensitivity differences across the nasal horizontal meridian are often diagnostically useful.
In turn, this should reduce scarring and paracentral scotomas that may arise after treatment [27].
This can include unilateral optic nerve lesions, paracentral scotomas, congruous and incongruous homonymous hemianopias and quadrantanopias, as well as altitudinal defects.
This effect could shift the visual field and potentially mask small central or paracentral scotomas. If a lens holder is misaligned, a portion of the peripheral points may be depressed, possibly leading to a defect mimicking a nasal step.