Lenses are used in many modern day optical devices ... in order to understand how
these devices work, a person must have sufficient knowledge about lenses, even if
that person doesn't need eyeglasses ...
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".
Opticians
A two dimensional shape with six sides, such as the lens for Jim's glasses, is called a hexagon. Another common example of a hexagon is a stop sign.
He wears glasses in real life and sometimes appreciates the rest from contact lenses!
Yes. Very.
the glasses that you wear have lenses
Glasses are important to society because they help improve people's eyesight. The lenses are custom made to a person's eye's.
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".
no
Contact Lenses are very important..they have given confidence to the people..who have low esteem due to glasses..
get glasses
Opticians
GLASSES
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.
No, you can't wear glasses during the vision portion of a driving exam. That's the reason for the test... to see if you require corrective lenses while driving.
glasses
Plastic