1. Katz Sand I. Classification, diagnosis, and differential diagnosis of multiple sclerosis. <em>Curr Opin Neurol</em>. 2015;28(3):193-205.
2. Britze J, Frederiksen JL. Optical coherence tomography in multiple sclerosis. <em>Eye (London, England)</em>. 2018;32(5):884-888. doi:10.1038/s41433-017-0010-2
3. Lanzillo R, Cennamo G, Criscuolo C, et al. Optical coherence tomography angiography retinal vascular network assessment in multiple sclerosis. <em>Multiple Sclerosis</em>. 2018;24(13):1706-1714. doi:10.1177/ 1352458517729463
4. Naumovska M, Sheikh R, Bengtsson B, Malmsjö M, Hammar B. Visual outcome is similar in optic neuritis patients treated with oral and i.v. high-dose methylprednisolone: a retrospective study on 56 patients. <em>BMC Neurology</em>. 2018;18(1):160. doi:10.1186/s12883-018-1165-6
5. Petzold A, Fraser CL, Abegg M, et al. Diagnosis and classification of optic neuritis. <em>Lancet Neurol</em>. 2022;21(12):1120-1134. doi:10.1016/s1474-4422(22)00200-9
6. Trip SA, Schlottmann PG, Jones SJ, et al. Optic nerve atrophy and retinal nerve fibre layer thinning following optic neuritis: evidence that axonal loss is a substrate of MRI-detected atrophy. <em>Neuroimage</em>. 2006; 31(1):286-293. doi:10.1016/j.neuroimage.2005.11.051
7. Cheng H, Laron M, Schiffman JS, Tang RA, Frishman LJ. The relationship between visual field and retinal nerve fiber layer measurements in patients with multiple sclerosis. <em>Invest Ophthalmol Vis Sci</em>. 2007;48(12):5798-5805.
8. Khalil DH, Said MM, Abdelhakim MASE, Labeeb DM. OCT and visual field changes as useful markers for follow-up of axonal loss in multiple sclerosis in Egyptian patients. <em>Ocul Immunol Inflamm</em>. 2017; 25(3):315-322.
9. Cennamo G, Romano MR, Vecchio EC, et al. Anatomical and functional retinal changes in multiple sclerosis. <em>Eye</em>. 2016;30(3):456-462. doi:10.1038/eye.2015.256
10. Plumb J, McQuaid S, Mirakhur M, Kirk J. Abnormal endothelial tight junctions in active lesions and normal-appearing white matter in multiple sclerosis. <em>Brain Pathol</em>. 2002;12(2):154-169. doi:10.1111/j.1750- 3639.2002.tb00430.x
11. Wang X, Jia Y, Spain R, et al. Optical coherence tomography angiography of optic nerve head and parafovea in multiple sclerosis. <em>Br J Ophthalmol</em>. 2014;98(10):1368-1373. doi:10.1136/bjophthalmol-2013- 304547
12. Ulusoy MO, Horasanlı B, Işık Ulusoy S. Optical coherence tomography angiography findings of multiple sclerosis with or without optic neuritis. <em>Neurol Res</em>. 2020;42(4):319-326. doi:10.1080/01616412.2020. 1726585
13. Farci R, Carta A, Cocco E, Frau J, Fossarello M, Diaz G. Optical coherence tomography angiography in multiple sclerosis: a cross-sectional study. <em>PLoS One</em>. 2020;15(7):e0236090. doi:10.1371/journal.pone.0236090
14. Mohammadi S, Gouravani M, Salehi MA, et al. Optical coherence tomography angiography measurements in multiple sclerosis: a systematic review and meta-analysis. <em>J Neuroinflammation</em>. 2023;20(1): 85. doi:10.1186/s12974-023-02763-4
15. Caprio M, Russo C, Giugliano A, Ragucci M, Mancini M. Vascular disease in patients with multiple sclerosis: a review. <em>J Vasc Med Surg</em>. 2016;4(2):746-753.
16. Akarsu C, Tan FU, Kendi T. Color Doppler imaging in optic neuritis with multiple sclerosis. <em>Graefes Arch Clin Exp Ophthalmol</em>. 2004; 242(12):990-994. doi:10.1007/s00417-004-0948-1