Can Lamina Cribrosa Indicate Optic Neuritis in Multiple Sclerosis?

Area of Science:

• Ophthalmology
• Neurology
• Medical Imaging

Background:

• Multiple sclerosis (MS) is a demyelinating disease affecting the central nervous system.
• Optic nerve involvement is common in MS, leading to visual impairment.
• Visual evoked potentials (VEPs) are used to assess optic nerve function.

Purpose of the Study:

• To investigate the association between lamina cribrosa thickness (LCT) and depth (LCD) and VEPs in MS patients.
• To determine if structural changes in the lamina cribrosa correlate with functional visual deficits in MS.
• To explore potential biomarkers for optic neuritis in MS.

Main Methods:

• Prospective, cross-sectional study involving 75 participants (25 MS with VEP pathology, 25 MS without VEP pathology, 25 healthy controls).
• Spectral domain optical coherence tomography (SD-OCT) was used to measure LCT, LCD, and retinal nerve fiber layer (RNFL) thickness.
• VEP testing was performed to assess visual pathway function.

Main Results:

• Mean LCT was significantly lower in MS patients with VEP pathology compared to healthy controls (P=0.012).
• A trend towards lower LCT was observed in MS patients with VEP pathology compared to MS patients without VEP pathology (P=0.148).
• A weak positive correlation was found between LCT and RNFL thickness in inferior, nasal, and temporal quadrants.

Conclusions:

• The lamina cribrosa is thinner in MS patients exhibiting VEP pathology.
• LCT may serve as a potential indicator for optic neuritis in patients with multiple sclerosis.
• Further research is warranted to validate LCT as a biomarker for MS-related optic nerve damage.