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. 2022 Mar;70(3):873-878.
doi: 10.4103/ijo.IJO_431_21.

Relationship between optical coherence tomography angiography and visual evoked potential in patients with multiple sclerosis

Sedat Ava  1 , Yusuf Tamam  2 , Leyla Hazar  1 , Mine Karahan  1 , Seyfettin Erdem  1 , Mehmet Emin Dursun  1 , Ugur Keklikçi  1
Affiliations

Relationship between optical coherence tomography angiography and visual evoked potential in patients with multiple sclerosis

Sedat Ava et al. Indian J Ophthalmol. 2022 Mar.

Abstract

Purpose: This study aimed to identify an easy-to-apply biomarker by correlating visual evoked potential (VEP) with optical coherence tomography angiography (OCTA) results in multiple sclerosis (MS).

Methods: Our study was planned prospectively. Patients with MS were divided into two groups, VEP prolonged group 1 and VEP normal group 2. Age-matched and gender-matched healthy individuals (group 3) were included as the control group. Vascular density (VD) of the optic nerve head (ONH) and radial peripapillary capillaries (RPCs) were measured and recorded by OCTA. The optic nerve damage of patients was measured and recorded with a VEP device.

Results: Thirty-two eyes were included in group 1, 50 eyes were included in group 2, and 51 healthy eyes were included in group 3. In terms of visual acuity, group 1 was significantly lower than the other groups (P < 0.001). Regardless of the prolongation of p100 latency in patients with MS, whole image, inside disc ONH VD and in the same sectors in RPC VD were found to be significantly lower than the control group (P < 0.05). Retinal nerve fiber layer thickness was found to be significantly lower in group 1 than in group 2 and group 3 (P < 0.05). There was a significant correlation between low ONH VD and RPC VD and prolonged VEP P100 (P < 0.05).

Conclusion: VEP measurements can be correlated with OCTA measurements in patients with MS and can be used as a biomarker to determine the degree of optic nerve damage.

Keywords: Multiple sclerosis; optical coherence tomography angiography; visual evoked potential.

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Conflict of interest statement

None

Figures

Figure 1
Figure 1
Vascular densities of the optic nerve head (ONH) were analyzed in images with a size of 3 mm × 3 mm centered on the optic disc
Figure 2
Figure 2
The radial peripapillary capillary (RPC) vessel densities were automatically measured within a 0.5-mm wide elliptical annulus extending outward from optic nerve head boundary
See this image and copyright information in PMC

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