The lens fell out of my new sunglasses, so I got my money back.
Nowadays, many people with poor eyesight can have their vision restored through corrective lens surgery using a laser beam.
I scratched the lens of my sunglasses when I was cleaning them.
You can now correct your
eyesight with a laser procedure which changes the pressure on the lens in your eye.
You should put the wide-angle lens on your camera so that you can get everyone in the picture.
He wears sunglasses with mirror lenses, so you can't see his eyes.
A naturalist dissected a salmon
at Goldstream Park, and she took a lens out of its eye for us to look at. It was like a perfect little glass ball.
Ayn Rand wrote that words are a lens to focus one's mind.
In 1609, Galileo obtained some lenses and built a telescope.
Modern telescopes generally use mirrors
rather than lenses.
A housefly has big compound eyes, each of which has 4,000 tiny lenses.
A horse focuses its eye by changing the angle of its head, not by changing the shape of the lens of the eye, as humans do.
The composition of the lens of a human eye is 65 percent water and 35 percent protein.
The lens of the eye continues to grow throughout a person's life.
Marco Polo reported seeing many pairs of eyeglasses worn by the Chinese as early as 1275, 500 years before lens making was possible in the West.
Leonardo da Vinci was the first to suggest using contact lenses to see, back in 1508.
Of all colors, gray lenses in sunglasses best protect the eyes against the sun's rays.
Neither fish nor insects have eyelids; their eyes are protected by a hardened lens.
Find someone who wears contact lenses.