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Why do people who were glasses often see condensation on their lenses when they walk from a cold outdoor environment into a warm house?
Wiki User
∙ 9y ago
condensation
Wiki User
∙ 9y ago
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List two uses for concave lens?
Both concave and convex lenses are used in glasses; A microscope, like a reflecting telescope, uses a concave mirror, a plane mirror, and a convex lens; A refracting telescope uses two convex lenses to magnify images in the sky; binoculars use concave lenses to improve detail.
What devices use lenses to produce a real image?
Convex lenses are used for glasses since it can bend light to provide better eyesight. Their also used for cameras, telescopes or science purposes. Also you have double convex lens in your eye.
What are two uses for a convex lens?
Concave lenses are used in glasses for people who are near-sighted. Convex lenses are used in glasses for people who are far-sighted.
What is the definition of optometry?
The definition of the word 'optometry' is The professional practice of primary eye and vision care that includes the measurement of visual refractive power and the correction of visual defects with lenses or glasses.
What do the lens do in the eye to help us see?
the lenses make objects look smaller than what they are so that people know what they look like.
Do glasses have lenses?
the glasses that you wear have lenses
Why is a pair of glasses a pair if its only one?
When you say "glasses", it is plural. A "glass" is one of the lenses. "Glasses" would refer to both of the lenses, and a "pair of glasses" doesn't mention anything about the frame, but it mentions the two lenses. The frame is the object that joins the two lenses so you don't have to wear contacts and so it can stay on your head. When you say "a pair of glasses", you are referring to the "pair of lenses", not the frame. The frame holding the two lenses makes us think that it is one object, when the word "glasses" refers only to the lenses, not the frame. That is why it is called "a pair of glasses".
Do nerd glasses have lenses?
no
Why do you have 2 glasses in spectacles?
Because you have two eyes, if you are talking about bi focal lenses then it is so that you can use a single glass both for reading and for outdoor use (looking at objects that are for.
What is the theme in lenses story?
GLASSES
I am allergic to contact lenses what can i do?
get glasses
Who grinds the lenses for glasses?
Opticians
How much are glasses without lenses?
Glasses without lenses? as in fake ones? why would you want them? U can just go to a 3d movie, get a pair of those and pop the lenses out.
What are progressive glasses?
Ones with varifocal lenses.
What was the first invention made with lenses?
glasses
What are other lenses than glasses?
Plastic
Does bill kaulitz wear conatct lenses?
No Bill or Tom doesn't have glasses or lenses.
