MSFinals-0892

A 25-year-old law student presents with visual loss in the right eye, accompanied by a constant headache for the past three months. She also reports not having had her menstrual cycle for six months. Upon examination, her visual acuity in the affected eye is 6/24, with slight constriction of both temporal visual fields. However, there are no other neurological deficits present. The patient is stable, without fever or hemodynamic abnormalities. What is the likely diagnosis?