The magnifying glass is the way humans understand the world.
A great invention
More than 1,000 years ago, people have ground clear crystals or clear gemstones into "lenses" that magnify images, also known as convex lenses.
Because of this, the magnifying glass has gradually become a good helper in our lives. In particular, many middle-aged and elderly friends, after discovering that they are presbyopia, do not choose to wear reading glasses when reading books, newspapers, and mobile phones, but use magnifying glasses instead.
Can a magnifying glass replace reading glasses?
Ophthalmologists bluntly said: Not advisable!Although magnifying glasses and reading glasses are convex lenses, they have a magnifying effect on objects. But magnifying glasses and reading glasses are two different concepts entirely.
Reading glasses are used to see objects at close range, and to prevent presbyopia from deepening. The magnifying glass is equivalent to 1000-2000 degree reading glasses, long-term use of the magnifying glass not only can not solve the problem of dazzling eyes, but also cause visual fatigue, deepen the presbyopia power, and then with reading glasses it is difficult to find the right power.
That is, you cannot replace reading glasses with a magnifying glass. If you really can't help it, you can only use a magnifying glass to help temporarily when the reading glasses are not there.
Presbyopia. It is a sign of aging eyes.
The ability of the lens in the human eye to adjust weakens with age, starting at about 40 to 45 years of age, and difficulty in reading or working at close range, this physiological weakening due to age is called presbyopia, commonly known as presbyopia.
There are 4 signs of presbyopia in the early stages:
You can see clearly from afar, but you can't see clearly when you see close;
Reading requires more illumination;
Those who unconsciously move a little farther away when looking at mobile phones or computers, or wear glasses for myopia, should take off their glasses.
After looking for a long time, it is easy to feel dizzy, swollen, tearful, headache, itchy eyes and other symptoms of visual fatigue.
If you meet the following points, presbyopia may have found you, and it is recommended to consult an ophthalmologist for examination and consultation, and take timely measures.
Don't panic with presbyopia.
Please do this.
1- Optometry at the hospital.
Many people suffer from reading glasses and resist wearing reading glasses. However, if the vision is blurred for a long time, it may cause dizziness and eye swelling, so it is necessary to do a comprehensive examination as soon as possible to rule out cataracts, glaucoma and some fundus diseases, and then refraction to determine the prescription of glasses.
2- Reasonable choice.
Reading glasses are selected according to personal eye conditions, for presbyopia and other vision problems such as myopia, astigmatism or farsightedness, it is not clear to see far and near, you can consider more convenient multifocal progressive lenses, one step to solve the problem of seeing near and far, it is very convenient to use, but it may take a period of time to adapt to the first wearing.
3- Replace in time.
The degree of presbyopia will also deepen with age, in addition, the lens will also have a certain lifespan, such as scratches, aging, will also cause blurred vision and other phenomena, so after presbyopia optometry glasses, you also need to regularly review and maintain your glasses, and according to the change of presbyopia power, change the appropriate glasses in time.
Change to an intraocular lens.
Say goodbye to glasses once and for all.
With the development of social life, everyone's requirements for visual quality are getting higher and higher, for those who are not Xi to wearing glasses, and even for some patients with occupational needs, trifocal intraocular lens replacement is the preferred method.
The principle of surgery is similar to that of cataract surgery - the lens in the human eye is surgically removed and a trifocal intraocular lens is implanted that mimics the zoom function of the human eye. The surgery takes a short time and only takes a few minutes to complete, which is equivalent to replacing the "lens" of the eye.
The trifocal intraocular lens can meet the needs of far, medium and near vision at the same time, and have excellent full vision after surgery, ensuring that patients can enjoy a good life in an all-round way after surgery, such as reading books, reading newspapers, playing computers, driving, traveling, etc. [1], and no longer have to worry about wearing glasses!It can also solve eye problems such as presbyopia, cataracts, and high myopia at the same time, and can be easily solved with one operation, so that you can truly enjoy a high-quality life.