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.
Dept of Daft: Vitamin E for Eyelash Growth. There are certain areas where modern science has herbal folk remedies beat. Accelerating eyelash growth is one of them. While looking into natural eyelash growth products, I came across a number of proponents of vitamin E as a treatment for strengthening, thickening, and even lengthening lashes. These people claim that rubbing vitamin E oil into your eyelids and onto your eyelashes at bedtime will help to promote normal lash growth. After researching this method of eyelash enhancement (I didn't want to try it myself for reasons stated below), I came to realize that vitamin E for lashes is decidedly daft.