The goal of optic nerve sheath fenestration is to relieve the pressure on the optic nerve to preserve a patient's vision.
The cosmetic results of this surgery are typically minimal. If an incision is made through the skin a small scar may be visible, but this generally heals very well. If an eye muscle is released to access the optic nerve, it is reattached at the conclusion of the surgery. This approach may cause double vision and a red eye, both of which are usually temporary.