Vertically Oriented Upper Eyelid Nerve Fibers: A Clinical, Anatomical and Immunohistochemical Study

摘要: Vertically oriented suborbicular nerve fibers are frequently encountered during upper eyelid surgery. It has not been well established whether these terminal motor branches of the facial (VII) or sensory ophthalmic (V-1). To investigate origin fibers, three different techniques were used: (1) intraoperative stimulation; (2) cadaver dissection; and (3) immunohistochemical analysis. The results all investigative methods in agreement conclusively demonstrate that represent (V-1) (VII). Anatomical dissection showed to do travel solely within fascial plane, but also course preorbicular plane orbicularis muscle itself. innervate oculi from undersurface a horizontal orientation. Clinical correlation findings is discussed.