Mnemonic for Superior Orbital Fissure Contents

Superior Orbital Fissure is an important topic for Ophthalmalogy exams as well as competitive exams like USMLE, PLAB and NEET. We have some useful mnemonics to remember the contents of SOF.

Mnemonic for all structures passing through the superior orbital fissure (superior to inferior) include:

  • Long Fissures Seem To Store Only Nerves, Instead Of Arteries, Including Ophthalmic Veins

Mnemonics for the nerves passing through the superior orbital fissure include:

  • Lazy French Tarts Sit Nakedly In Anticipation
  • Live Frankly To See Absolutely No Insult
  • Live Free To See No Insult At All

Mnemonics

Long Fissures Seem To Store Only Nerves, Instead Of Arteries, Including Ophthalmic Veins

The order of the contents passing through the superior orbital fissure form superior to inferior:

  • L: lacrimal nerve (branch of CN V1)
  • F: frontal nerve (branch of CN V1)
  • S: superior ophthalmic vein (tributary to cavernous sinus)
  • T: trochlear nerve (CN IV)
  • SO: superior division of the oculomotor nerve (CN III)
  • N: nasociliary nerve (branch of CN V1)
  • IO: inferior division of the oculomotor nerve (CN III)
  • A: abducens nerve (CN VI)
  • IOV: inferior ophthalmic vein (tributary to both cavernous sinus and pterygoid venous plexus)
Lazy French Tarts Sit Nakedly In Anticipation 

The order of the nerves passing through the superior orbital fissure from superior to inferior:

  • L: lacrimal nerve (branch of CN V1)
  • F: frontal nerve (branch of CN V1)
  • T: trochlear nerve (CN IV)
  • S: superior division of the oculomotor nerve (CN III)
  • N: nasociliary nerve (branch of CN V1)
  • I: inferior division of the oculomotor nerve (CN III)
  • A: abducens nerve (CN VI)
Superior Orbital Fissure
Live Frankly To See Absolutely No Insult

Note: not in order as abducens nerve is most inferior:

  • L: lacrimal nerve (branch of CN V1)
  • F: frontal nerve (branch of CN V1)
  • T: trochlear nerve (CN IV)
  • S: superior division of the oculomotor nerve (CN III)
  • A: abducens nerve (CN VI)
  • N: nasociliary nerve (branch of CN V1)
  • I: inferior division of the oculomotor nerve (CN III)
Live Free To See No Insult At All

Note: not in order

  • L: lacrimal nerve (branch of CN V1)
  • F: frontal nerve (branch of CN V1)
  • T: trochlear nerve (CN IV)
  • S: superior division of the oculomotor nerve (CN III)
  • N: nasociliary nerve (branch of CN V1)
  • I: inferior division of the oculomotor nerve (CN III)
  • At All: abducens nerve (CN VI)

Hope those Mnemonics helped. If you have better mnemonics for the same, do share in the comments below.

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