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.
LatisseÂ® â Lash Growth. LatisseÂ® is a product for anyone wishing to improve the appearance of their eyelashes. LatisseÂ® (Bimatoprost topical solution 0.03%) provides a new and safe option for growing longer, thicker and/or darker lashes. View our LatisseÂ® Before & After pictures now! View our LatisseÂ® Before & After pictures now! Topical application of LatisseÂ® is for the upper lashes only and optimal results are achieved in 16 weeks. After cleansing the skin at night, apply one drop of the LatisseÂ® to the first brush and swipe over the upper lash line. Dispose of the applicator after one use and then repeat for the opposite upper eyelid using a new sterile applicator.