Effectiveness of Time Domain and Spectral Domain Optical Coh | 46576

Revista de esclerosis múltiple

ISSN - 2376-0389


Effectiveness of Time Domain and Spectral Domain Optical Coherence Tomograph to Evaluate Eyes with And Without Optic Neuritis in Multiple Sclerosi Patients

Iester M, Cordano C, Costa A, D’Alessandro E, Panizzi A, Bisio F,  Masala A, Landi L, Traverso CE, Ferreras A, Mancardi GL and Uccelli A

Purpose: To compare the macular assessment and retinal nerve fiber layer (RNFL) thickness by using two different optical coherence tomographies (OCTs): a time domain (TD) and a spectral domain (SD) OCT, in multiple sclerosis (MS) patients with and without unilateral optic neuritis (ON).

Methods: We enrolled 34 patients (13 males and 21 females): 18 without previous episodes of ON and16 with a previous monolateral episode of ON occurred at least 3 months prior to examination. Patients underwent ophthalmological examination, TD OCT and SD OCT scans. We compared the outcomes of eyes with and without ON by using Student’s t test.

Results: In the affected eye group a reduction of the average RNFL was found using TD OCT (reduction of 22.8%) with the difference between the two groups being statistically significant (p<0.05) in almost all the investigated retina areas. Similar results were found when eyes were analysed with SD OCT, also when the ganglion cell layer (GCC) was considered: a reduction of 18.1% of GCC average thickness was found. No significant difference was found when the outer retina was considered.

Conclusions: In MS patients both OCT systems were able to detect a difference between eyes with an outcome of optic neuritis and those without optic neuritis.