What is the most common cause of optic neuritis? What is an important exam for suspected optic neuritis?,”MS. Usually less than 45 years old. Central scotoma with colour vision deficit. RAPD. There will be a deficit

What is the most common cause of optic neuritis? What is an important exam for suspected optic neuritis?,”MS. Usually less than 45 years old. Central scotoma with colour vision deficit. RAPD. There will be a deficit

even if fundus initially appears normal.”