Origin
Sphenoid bone
Insertion
Posterior sclera – superolateral surface
Blood supply
Ophthalmic artery
Nerve supply
Trochlear nerve
Action
The muscle moves the eye towards and away from the nose and also helps in depression of eyes (eyes looking downwards towards mouth).
Disease/Injury
Any injury or trauma to head can cause paralysis of superior oblique muscle. In this palsy, usually the patient experiences double vision.
Muscle Exercise
Do the alternate near and far exercise for double vision. Hold a pen in front of nose about 15 cm away. Focus on the object for 5 seconds continuously and then look far away at 20 feet to an object for 5 seconds. Now, look back to the object near nose. Repeat the process 20 times at least twice a day.
Interesting fact
NA
