L is for Lens (Device)
A lens is a device that changes the way light bends. When you look through a lens things look different to when you don't look through the lens.Lenses can be used to make things seem closer than they are, or in spectacles to correct poor vision.
L is for Lens (Eye)
The lens is a small clear part inside your eye. It helps your eye focus on things you are looking at.The lens changes shape to focus light onto the retina, which sends signals to your brain.