The direction of pull of the muscles forms a 23Â° angle relative to the visual axis in the primary position, giving rise to secondary and tertiary functions. The secondary action of vertical rectus muscles is torsion. The superior rectus is an incyclotorter, and the inferior rectus is an excyclotorter.
-Marcia. Dear Marcia, Eyelash growth serums generally contain either a prostaglandin derivative, like prescription Latisse, or over-the-counter Revitalash; peptides, like Jan Marini Growth Serum; or vitamins, like Peter Thomas Roth Lashes to Die For.
Eating a healthy diet rich in protein and vitamins helps eyelash hair grow. Good foods to help your eyelashes grow include fish, eggs, beans and yogurt. Soy protein is also beneficial for simulating eyelash growth. Eyelid Massage. Massaging your eyelids gently can increase blood flow and may stimulate growth of lashes.