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Retinal vascular density in multiple sclerosis: a 1-year follow-up.

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Vascular density in the eyes of multiple sclerosis (MS) patients can improve over one year. This retinal vascular density change correlates with disease stability and disability progression in MS.

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Area of Science:

  • Ophthalmology
  • Neurology
  • Vascular Biology

Background:

  • Vascular pathology is a recognized risk factor for multiple sclerosis (MS).
  • Reduced vascular density (VD) in the retina is observed in MS patients using optical coherence tomography (OCT) angiography.
  • Understanding VD changes over time may offer insights into MS progression.

Purpose of the Study:

  • To prospectively evaluate changes in retinal vascular density (VD) over one year in patients with multiple sclerosis (MS).
  • To investigate the correlation between VD variations and clinical outcomes, including disability status.

Main Methods:

  • A 1-year prospective study involving 50 MS patients.
  • Spectral domain-optical coherence tomography (OCT) and OCT angiography were performed at baseline and follow-up.
  • Mixed-effect linear regression models analyzed VD changes and their association with clinical outcomes.

Main Results:

  • Parafoveal vascular density (VD) showed a statistically significant increase over the study period (P = 0.035).
  • A reduction in parafoveal VD was associated with an increase in the Expanded Disability Status Scale score (P = 0.013).

Conclusions:

  • Retinal vascular density (VD) can improve over time in multiple sclerosis (MS) patients, especially those with stable disease.
  • VD shows potential as a novel biomarker for MS, but further research is needed.
  • Future studies should include longer follow-up, early MS cases, and combination with brain atrophy markers.