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. 2020 Aug 31;12(9):2653. doi: 10.3390/nu12092653

Table 2.

Ophthalmologic tests to perform in case of suspected nutritional optic neuropathy.

Test
Colour vision tests
(Ishihara plates, Panel 15D test)
Dyschromatopsia
VF Central or cecocentral scotoma
VEP Reduced amplitude, normal or near normal latency
RNFL OCT RNFL thinning
ERG, OCT To exclude retinal disease
MRI To exclude compressive or demyelinating diseases

VF: Visual field; VEP: visual-evoked potentials; RNFL: retinal nerve fibre layer; OCT: optical coherence tomography; ERG: electroretinography.