What causes you to need bifocals?
In the previous article, we discussed “What Causes Myopia?”. In this article, let’s talk about “What causes you to need bifocals?”.
When do you need bifocal glasses?
Since the body changes about once every seven years, sometime in your 30s and 40s, you may notice that your ability to see near or far may no longer be working properly. This may be the time to pick up your reading glasses at your local drugstore. The changes that come with age make it difficult to see things up close. However, if you have these signs, it's quite normal to experience presbyopia as you get older. If you have worn corrective lenses, it is necessary to put on bifocal glasses.
What situation suggests you need bifocals?
You move away from your face as you read menus, books, and magazines. You get a headache or eye strain when you do close tasks. Your vision is blurry when you wake up, or things get blurry as time goes on. As you're driving, you notice that when you look down at the speedometer, it's kind of out of focus. You carry more than one pair of glasses with you every day.
Bifocal glasses can help ease eye problems in teenagers.
Younger children may need prescription bifocals due to nearsightedness. The disease is a refractive problem in the eyes that causes nearsightedness from birth. These people can't see anything that is far away, but they have no problem reading a book or looking at something close. However, they often have strabismus and have headaches with their vision problems. Bifocals help them see near and far with the same clarity.
Bifocal glasses can help alleviate eye problems in middle-aged and elderly people.
Whether it gets harder and harder to see close things as you get older or you're always having trouble seeing things far away, bifocals can help restore your vision to a relatively normal level and allow you to enjoy sight again. The upper half lens of bifocal glasses is used to see far, and the lower half lens is used to see near. At present, there are progressive bifocal reading glasses on the market. You can see far and nearby wearing a pair of glasses.
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