I’m not really sure but I think it’s vitamins
The lens helps the eye to focus on images.
"The Lens. The lens is composed of transparent, flexible tissue and is located directly behind the iris and the pupil. It is the second part of your eye, after the cornea, that helps to focus light and images on your retina."
Here are a couple of things that could be done if a tornado headed his/her way :
- If they decided to stayed at home, go to a more solid concrete such as basement, and avoid windows.
- If they're in outdoor area, avoid area that have many trees and many vehicles
- but overall, The best way is to find a tornado shelter which is specifically built to survive the tornado and gather all the family members in there
