View Preauricular Sinus Surgery Complications Gif. Visual loss has been reported after sinus. As with any surgical procedure, endoscopic sinus surgery has associated risks.
Here is a link to an article i found very informational, it actually provides instructions on how to remove the sinus tract and possible complications of surgery.
Is preauricular sinus discharge your major concern? Resecting branchial cysts, fistulae and sinuses. During endoscopic sinus surgery, a doctor uses an endoscope to view the inner cavities of the nose (a and b). Frequency of preauricular sinus differs depending the population: