The outer surface has thin, lightly keratinised epithelium The vermillion border is red, because it is highly vascularised.
Over one-hundred and seventy tab versions are available here, with the most popular being Before I Forget, Duality, Wait and Bleed, Vermillion, Left Behind and Purity.
Tennis players benefit from teal lenses; skiers from vermillion.
The way you get that is by using orange, yellow, or vermillion lenses.
Done in a lens that's dubbed VE5 Vermillion, this unique hue makes it a true all-rounder.