What material is good for reading glasses_What material is good for reading glasses

What material is good for reading glasses_What material is good for reading glasses

As people age, their eyesight begins to gradually deteriorate, and it is easy to develop presbyopia. If presbyopia occurs, they need to wear reading glasses, otherwise it will affect their normal life, and the degree of presbyopia will become more and more severe. Wearing reading glasses is the same as wearing ordinary myopia glasses, but many elderly people don’t know much when it comes to choosing the material of their glasses. So, what material is best for reading glasses? Let’s take a closer look below.

Reading glasses are mainly optical products used to supplement the vision of middle-aged and elderly people. In addition to meeting the psychological age of the wearers, the frames are generally made of metal. Most of them are made of aviation material beryllium copper alloy, which is twice as corrosion-resistant, wear-resistant and impact-resistant as ordinary metal materials, and is more than 35% lighter.

The rubber cover of the frame can be made of a material with a better texture, preferably one that has no allergic reaction to the skin, and at the same time effectively prevents slipping, etc. The nose pads can be made of silicone, combined with the principles of integrated ergonomics, to achieve a perfect fit.

The best material for reading glasses lenses is resin, which can effectively filter out ultraviolet rays, infrared rays, and glare. For middle-aged and elderly people, the eyes' adjustment and resistance are relatively poor. Only by filtering out harmful strong light and protecting the eyes can we prevent the occurrence of eye diseases such as senile cataracts and macular degeneration.

In addition, the degree of presbyopia is different from that of myopia, so there is no need to wear lenses with too high a degree. However, compared with lenses made of other materials, resin lenses have the best refractive index, light transmittance, UV protection and other glare capabilities.

Reading lenses are generally coated or designed as aspherical lenses, which are lighter and thinner than ordinary spherical lenses, provide clearer vision and a wider field of view, ensuring that patients have no obstacles when reading or working.

No matter what material you choose for reading glasses, when measuring the refractive power, you should first determine the distance power, and then calculate the power of the reading glasses based on your age, occupation, and lifestyle, to avoid symptoms such as head swelling, headache, dizziness, and vertigo during wearing. At the same time, when buying reading glasses, you should choose a regular eyewear store to get them fitted.

Note: The elderly need to go to the eyewear store themselves and follow the doctor’s instructions to get glasses. Glass lenses are thick and fragile but wear-resistant; resin lenses are thin and easy to scratch.

<<:  White bubbles grow on the turtle's head

>>:  How to wear glasses for myopia and presbyopia

Recommend

How to restore a shrunken shirt

Everyone should have a shirt in their wardrobe. A...

What causes dark circles under eyes?

If the eye circles are dark, many friends’ first ...

The difference between Houttuynia cordata and Houttuynia cordata

Many people don’t know about Houttuynia cordata, ...

What are lung calcification points

Our body functions will be damaged if infected. O...

3 necessary diagnostic items for patients with esophageal cancer

Esophageal cancer is a common malignant tumor tha...

How to treat varicose veins in the calves?

Many people have suffered from varicose veins in ...

How should patients with bile duct cancer exercise

In recent years, with the increasing incidence of...

How to treat a 4 cm pituitary tumor

How to treat a 4 cm pituitary tumor? A pituitary ...

How to make your nose straighter without plastic surgery, must-know makeup tips

Women all hope that their noses can be higher and...

What to do if you get a bump on your head

The human head can be injured if one is not caref...

What is the fastest and most effective way to get rid of sun spots?

The sun is stronger in summer and winter, and peo...

How to maintain after hamartoma is cured

In normal times, developing hygienic habits, an o...

Can I have sex when I have a cold?

There are many things you should not do when you ...

What to do if you have premature ovarian pain?

Modern women are under great work pressure. Some ...

What examinations should be done to prevent colorectal cancer

What kind of examinations should we do to prevent...