why do older people need reading glasses
As a matter of fact, with the growth of age, most old people will find themselves have difficulty in close work such as reading or sewing. It is called presbyopia. Most people will develop presbyopia around the age of 40, or even yonger. It's a natural aging process. The older we are, the weaker the process of metabolism is, and the poorer vision we will have. To saves the energy for the older people to see the near things,
is the effective way. However, if someone who are going to be wearing them for blurred vision, it is worth it to get an professional eye exam. They are expensive but worth it in consideration of your eyes. This is the reason why reading glasses are often applied for old people. Yeah, you are right. Many people more than 40 years old have to wear reading glasses when they want to do some reading. Because the kind of old man suffered the far sighted. According to the professional experts, when we want to see some staff in the distance, the tiny muscles will push and pull on our lens to change its shape, which will change its overall refractive power.
Then, as the people are aging, the lens becomes stiffer, which will result in making it harder for the tinny muscle to change its shape. Consequently, the eyes can not have a full range of focus that will let the people see less clearly. At this time, the people have to rely on the reading glasses to do the focusing for us. Of course, if you find you have the mentioned above problem, you can ask the reading glasses to help you out. However, if you have been already with glasses for nearsighted, you can also wear the bifocals or progressive addition lenses. Good luck. When people get older, their eyes will become presbyopia. They will find it difficult to see things near. And the main role of the reading glasses is to help people see things near clearly. That is why a lot of old people wear reading glasses when they read newspapers or other things.
The aging will make the eyesight become worse. That is the natural progress for human development. As people are getting older, their lenses in the eyes are getting stiff. When they have reached their mid-life, their eye lenses are stiff enough to prevent them from concentrating on close things. This condition is called presbyopia. However, they can still see the object far away from them clearly. So they need a pair of to assist them to focus on near objects on the retina. There are two types of reading glasses: full frames and half-eyes. The full frames are helpful for the wearers who focus on close objects for a long time. The reading glasses wearers can see close objects as well as distant ones through half-eyes. People who have never worn glasses before should start with reading glasses instead of bifocals or no-line progressive lenses. reading glasses, also called, are mainly intended for people who get presbyopia that is common among the group of middle aged people.
Presbyopia is a normal physiological phenomenon, not a eye disease, and it does not only happen to the elderly, either. When people get forty years old or more, their crystalline lenses will gradually get hardening fibres, and the ciliaris gradually get paralysis, which make the human eyes unable to effectively adjust the shape of the eyeballs. Therefore, the only way to see clearly the things in a near distance is to adjust the distance between the eyes and the objects by wear a pair of reading glasses. This kind of eye condition is called presbyopia. And there is another important thing to pay attention to is that the original prescription of the reading glasses will be not enough any more with the increasing age. Therefore, a pair of reading glasses can not be worn for all the time, and it is necessary to regularly take eye examinations to make sure the exact prescription of the eyes.
Otherwise wearing the wrong reading glasses can bring much inconvenience to the life and accelerate the speed of the eye aging. Well, yes, actually old people have to wear reading glasses to have reading. And we can say that they get presbyopia, which is a condition, caused by aging. When old people get this kind of disease, it will be difficult to read small words at close distances or to work on the computer for long periods of time. Of course, the most common reason why people get presbyopia, it can be related to aging. According to some researches, age-related changes will occur within the proteins in the lens, and then, it will make the lens harder and less elastic over time. That is why when we get older, the presbyopia will occur and it may become worse. And then, reading glasses are needed to have reading.
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