What Are the Functions of Multifocal Glasses?

Due to the increasing pressure of study and work, people spend a long time in facing electronic products, more and more people have vision problems. Some people choose progressive multifocal lenses when matching glasses. What kind of lens is this?

Do you need multifocal reading glasses?

As we grow older, the lenses of our eyes will lose their elasticity and their ability to focus will also decrease. This will lead to hyperopia, which is called presbyopia. It's very common, especially when we're over 40. You may begin to notice that you have some difficulty in reading small fonts, and you hold the book at a distance from your hand, trying to find a distance that your eyes can accept. At the same time, an idea is sprouting in your mind - should I start wearing full lens reading sunglasses or low power reading glasses?

If you start to develop these symptoms and have prescription glasses on, you should try multifocal reading glasses, which allow you to see clearly at any distance. Progressive multifocal lenses allow you to work on multiple tasks at the same time, reducing stress on your eyes when you focus on different distances.

Although presbyopia is a normal change that happens in our eyes, it can be a sensitive topic because it is an inevitable sign that we are getting older. Anyway, we all want to look young and energetic. Maybe ordinary reading glasses can't improve the style, but you can consider wearing vintage half-moon reading glasses or custom reading glasses.

Functions of progressive multifocal lenses

The lens looks like a monocular lens, and there is no demarcation line of degree change. It not only looks beautiful, but also protects the wearer's age privacy. So, we don't have to worry about divulging age secrets because of wearing progressive multifocal glasses.

As the change of lens power is gradual, there will be no image jumping. Progressive multifocal glasses are comfortable to wear and easy to adapt to, which is easy to accept.

The degree is gradual, and the substitution of accommodation increases gradually according to the shortening of visual proximity. Therefore, there is no fluctuation of adjustment and it is not easy to cause visual fatigue.

Clear vision can be obtained from all distances within the visual range. Progressive computer reading glasses and sightline multifocal computer reading glasses can meet the needs of long distance, short distance and medium distance at the same time, which brings good news to teachers, doctors, music workers and computer operators. Because these people not only need to see far and near objects, but also can see objects in the middle such as a blackboard, piano score and computer screen most of the time. This is not possible with any lenses other than progressive multifocal lenses.

At present, ophthalmologists at home and abroad have unanimously advocated that teenagers should wear low degree convex lenses when reading and writing to reduce the access adjustment, so as to alleviate or prevent the occurrence and development of myopia, which endows progressive multifocal lenses with new significance and mission. Physiology found that the excessive use of eye accommodation function can form pseudo myopia, and continuous development can produce the result of longitudinal axial lengthening and induce true myopia. Therefore, foster grant multifocal glasses and multifocal computer glasses are good choices for teenagers.

Progressive lens external luminosity can be artificially added to make the eyeball relax. The ever-changing lens luminosity replaces the original "adjustment force", blocks the vicious cycle of eye axis lengthening, makes the eyeball not easy to fatigue, and slows down the development of myopia.