title: Farris-Tang retractor in optic nerve sheath decompression surgery.
abstract: OBJECTIVE
  Our purpose is to introduce the use of the Farris-Tang retractor in optic nerve sheath decompression surgery.
  
  
  METHODS
  The procedure of optic nerve sheath fenestration was reviewed at our tertiary care teaching hospital, including the use of the Farris-Tang retractor.
  
  
  RESULTS
  Pseudotumor cerebri is a syndrome of increased intracranial pressure without a clear cause. Surgical treatment can be effective in cases in which medical therapy has failed and disc swelling with visual field loss progresses. Optic nerve sheath decompression surgery (ONDS) involves cutting slits or windows in the optic nerve sheath to allow cerebrospinal fluid to escape, reducing the pressure around the optic nerve. We introduce the Farris-Tang retractor, a retractor that allows for excellent visualization of the optic nerve sheath during this surgery, facilitating the fenestration of the sheath and visualization of the subsequent cerebrospinal fluid egress. Utilizing a medial conjunctival approach, the Farris-Tang retractor allows for easy retraction of the medial orbital tissue and reduces the incidence of orbital fat protrusion through Tenon's capsule.
  
  
  CONCLUSIONS
  The Farris-Tang retractor allows safe, easy, and effective access to the optic nerve with good visualization in optic nerve sheath decompression surgery. This, in turn, allows for greater surgical efficiency and positive patient outcomes.
authors.affiliation: Department of Ophthalmology, University of Kansas, School of Medicine, Kansas City, Kansas, USA.
authors.forename: Jennifer A
authors.initials: JA
authors.lastname: Spiegel
authors.affiliation: Department of Ophthalmology, University of Kansas, School of Medicine, Kansas City, Kansas, USA.
authors.forename: Jason A
authors.initials: JA
authors.lastname: Sokol
authors.affiliation: Department of Ophthalmology, University of Kansas, School of Medicine, Kansas City, Kansas, USA.
authors.forename: Thomas J
authors.initials: TJ
authors.lastname: Whittaker
authors.affiliation: University of Missouri—Kansas City School of Medicine, Kansas City, Missouri, USA.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Bernard
authors.affiliation: Department of Ophthalmology Dean McGee Eye Institute, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA.
authors.forename: Bradley K
authors.initials: BK
authors.lastname: Farris
mesh_terms: D002555:Cerebrospinal Fluid / Q000502:physiology; D019299:Decompression, Surgical / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D007427:Intracranial Pressure; D009186:Myelin Sheath; D013508:Ophthalmologic Surgical Procedures / Q000295:instrumentation*; D009900:Optic Nerve / Q000503:physiopathology / Q000601:surgery*; D011559:Pseudotumor Cerebri / Q000503:physiopathology / Q000601:surgery*; D013536:Suture Techniques; D014792:Visual Acuity / Q000502:physiology
keywords: Farris-Tang; Farris-Tang retractor; ONDS; optic nerve decompression surgery