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A new posterior pole protocol effectively detects retinal nerve fiber layer (RNFL) and ganglion cell layer (GCL) differences in multiple sclerosis (MS) patients, even in early stages. RNFL thickness correlates with disability, while GCL thickness relates to disease duration.

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Area of Science:

  • Ophthalmology
  • Neuroscience
  • Medical Imaging

Background:

  • Multiple Sclerosis (MS) is a chronic neurological disease affecting the central nervous system.
  • Retinal nerve fiber layer (RNFL) and ganglion cell layer (GCL) thinning are potential biomarkers for neurodegeneration in MS.
  • Early detection and monitoring of MS progression are crucial for patient management.

Purpose of the Study:

  • To evaluate a novel posterior pole protocol for detecting RNFL and GCL thickness variations in MS patients compared to healthy controls.
  • To investigate the correlation between RNFL and GCL thickness with disease duration and Expanded Disability Status Scale (EDSS) in MS patients.

Main Methods:

  • Analysis of 100 eyes from remitting-relapsing MS (RR-MS) patients and 66 eyes from healthy controls.
  • Subgroup analysis based on time since first clinical symptom onset (CSO) and conversion to clinically definite MS (CDMS).
  • Utilized optical coherence tomography (OCT) to measure RNFL and GCL thickness.

Main Results:

  • Significant differences in RNFL and GCL thickness were observed between RR-MS patients and controls.
  • Thickness differences were also noted between subgroups categorized by CSO and CDMS.
  • Moderate to strong correlations were found between RNFL/GCL thickness and CSO/CDMS, with a strong correlation between RNFL thickness and EDSS.

Conclusions:

  • The posterior pole protocol is a valuable tool for assessing MS, identifying differences even in early disease stages.
  • RNFL thickness is strongly correlated with MS-related disability (EDSS).
  • GCL thickness demonstrates a better correlation with the duration of MS.