CPT® Code 67345

Chemodenervation of extraocular muscles is a specialized medical procedure that involves the precise injection of botulinum toxin type A (BTA) into one or more of the eye muscles. This technique is primarily utilized to temporarily paralyze these muscles, which is particularly beneficial in the treatment of paralytic strabismus, a condition characterized by misalignment of the eyes due to muscle imbalance. The procedure aims to restore proper eye alignment by targeting the unopposed antagonist muscle of the paralyzed muscle, effectively inducing paralysis in that muscle as well, thereby correcting the strabismus. The administration of the botulinum toxin is performed under the guidance of electromyographic (EMG) control, ensuring accurate placement of the injection. This method enhances the precision of the procedure, as it allows for real-time monitoring of muscle activity during the injection process. The use of local anesthetics and the application of an eye speculum are standard practices to ensure patient comfort and facilitate access to the eye muscles during the procedure. Overall, chemodenervation of extraocular muscles is a critical intervention in ophthalmology, providing a non-surgical option for managing specific types of strabismus.