1. Confirm and quantifies the edema of the optic nerve head. 2. Quantifies RNFL thickness, which correlates with VF parameters, VER and VA in the acute phase.Detect subclinical damage of RNFL in patients diagnosed of MS (subclinical death of ganglion cell axons). 3. Detect subclinical changes of GCIPL thickness 4.OCT is more sensible tan perimetry to detect MS- ON

RNFL: Retinal Nerve Fiber Layer; VF: Visual Field; VER: Visual Evoked Response; VA: Visual Acuity; GCIPL: Ganglion Cell-Inner Plexiform Layer

Table 3: Applications of optic coherence tomography (OCT) in multiple sclerosis- like optic neuritis (MS-ON).