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Distances - as opposed to reading etc.
There are three main reasons people need glasses for distance vision.
Primarily Myopia (shortsightedness)is the cause for most people and this is because optically light converges not on the retina but falls short therefore a concave lens is required to placed in front of the eye in order to obtain the clear image.
Astigmatism is where vision is best described as skewed owing to the shape of the eyeball this condition affects both near and distance vision and can be very tiresome.
Finally hyperopia- (longsightedness) is NOT as many people believe "simply the opposite of myopia(shortsightedness) Hyperopia is opposite only in the respect that the rays of light are focused behind the eye and a convex lens facilitates this.
More often than not people with hyperopia have more difficulty with near objects, but depending on the amount of hyperopia and their age (if over 45 or so) they could well require the convex lenses to see at distance.
What else can I help you with?
Is it possible for evil people to wear glasses?
all people are the same evil people can ovisly wear glasses
What percent of people wear glasses in Canada?
About 96 millions people wear glasses in the whole world About 1.6 percent!!!
Why do people who were glasses have circles under the eyes?
People wear glasses because they are either longsighted or shortsighted. People who wear glasses may have circles under the eyes because it is the imprint of the glasses.
Dose Justin Bieber like people that wear glasses?
does Justin bieber like people that wear glasses no he dosent
What is difference between reading glasses and distant glasses?
Distance glasses are made for people who are nearsighted ( people who have difficulty seeing DISTANT objects but can see close objects clearly ) reading glasses are for people who are farsighted ( people who have difficulty seeing CLOSE objects but can see distant objects clearly ) Distant glasses come in a MINUS prescription and usually when you wear them, they make everything look SMALLER Reading glasses come in a PLUS prescription and they make the world seem BIGGER
Some that starts with a g to wear?
People wear glasses. People wear gloves. People wear golf shoes.
What percentage of Americans wear contact lesnses or glasses?
All the nerds, geeks and ugly people where glasses. With a few exceptions about 20% of the people who wear glasses are not ugly or disgusting
If there are 200 people in a room and 80 wear glasses what fraction of the students wear glasses?
Two fifths...(assuming all the people are students)
Does Katie Couric wear contacts for distance as well as reading glasses?
probably
What do you call people who wear glasses?
The only formal adjective is the archaic "bespectacled." Otherwise, they are only "people who wear glasses."
Why do people at school wear these big preppy glasses?
These people at your school probably wear those glasses to look intelligent. Lots of people do that so they can impress people they want to hang out with.
What do you wear starting with a g?
Gauntlets are dress gloves. People wear glasses and a garland. People wear galoshes.
