I have been getting IVIG infusions for 5 years and have not had any issues with a swollen optic nerve. I have not seen any postings on the website regarding this.
The side effects are minimal. They have consisted of headaches, some tiredness, trouble sleeping (the days of the infusion), some irritability. My eyesight is slightly blurry and my voice gets slightly hoarse, the days of the infusion. These side effects are very manageable. If you are considering IVIG. The answer is quite simple YES.