Adjust the nose pad
The height of the nose pad is adjusted by first holding the glasses with one hand and holding the nose pad with pliers with the other. Then the pliers are lifted up and the nose pad is moved down until the glasses are in the correct position on the face. The asymmetrical adjustment method is to first hold the frame of the eyeglasses with one hand, the other hand clamps the nasal plate with pliers. Then twist it in the direction of the correct tray position so that the surface of the tray is in contact with the two sides of the nose. Wrap one side of the lens of the glasses to be operated with a cloth first to prevent the screwdriver from slipping and scraping the lens during the operation. Don't scratch your glasses by adjusting your nose pad.
When were the first glasses invented?
No one knows when the first pair of glasses were invented, but we do know that the grinding techniques for making simple magnifying glasses have been around since 1000 AD, especially in regions where glasses were already produced (including northern Italy). The earliest artwork of glasses appears in the Treviso Cathedral fresco painted by Tommaso de Modena in 1352. There is reliable evidence that eyeglasses were invented in Italy in the late 13th century. The first pair we think of as eyeglasses appeared in Italian pizza in the late 12th century and looked more like two small magnifying glasses (made of raised glass) riveted together at the top of the handle. In 1266, The English Franciscan Monk Roger Bacon wrote about the scientific principles of corrective lenses, but there is no evidence that he applied this knowledge to the manufacture of eyeglasses.
With a half-frame design, the retro round glasses can be paired with a very thin metal frame, indicating the literary and elegant temperament. The frame with only the upper part of the lenses circle covering the lens integrates lightness and steadiness, highlighting the sense of fashion, not only shows the wisdom of business elites but the natural and free affinity. They are not heavy and relatively firm. It is suitable for different kinds of occasions. It can be used for business occasions, leisure occasions, and parties. It is stylish and composed, reflecting the quality of life.
Large round-frame glasses
Big round-frame glasses have large lenses, very dark frames. When you put it on, it makes you look good. Scientific design, let wear natural and comfortable, and you won't have a heavy feeling, with no pressure. When you wear a round frame, there is a kind of retro feeling. Round-frame glasses have an advantage, that is, they can modify the face line, looking small and shapely.
Disadvantages of Progressive Lens
There are deformation areas under the left and right sides of the lens, which make the image blurry and irregular. It takes 1-3 weeks to get used to it. In addition, it has a narrower field of view in the near and middle distances, and long-term concentration on the narrow focal point can easily make the eyes tired. Suitable for people who need to alternate between distant, medium, and near vision.
However, with the development of science and technology, more and more progressive multifocal glasses have emerged that have a wider field of view, more comfortable wearing, and better meet the needs of eyes. Nowadays, the use rate of progressive lenses among middle-aged and elderly people abroad is quite high. Single-lens and double-lens reading glasses are gradually being replaced by progressive multifocal glasses.
Identify reliable online stores
Online stores division of labor has customer service, processing, packaging, warehousing, after-sales service, operation, art, etc. For processing accuracy, although the equipment is now much higher than before, as long as it is artificial, there will be errors. Even with the highest Essilor automatic grinding machine at present, it is possible to produce errors when the center point and the suction cup are manually operated. After processing is completed, a responsible shop will recheck the number. If the error is large, it must be reconfigured. The formal glasses mall can ensure that the true lens and this is the basic point of a good pair of glasses. Find reputable brands that are proven and believed by most consumers. The online shops should have perfect pre-sale and after-sales service. Professional pre-sale service can give professional guidance.
Understand the basic knowledge of prescription of glasses
The prescription mainly includes the refractive status of the eye, degree of correction required, pupil distance, and the purpose of using the lens. Nowadays, there are many brands and varieties of glasses. Glasses are usually classified according to the material, structure, and use of the lens. Most of the glasses in the prescription are classified by structure. Nowadays, single vision glasses and multi-focal glasses are mainly used, and multi-focal glasses include bifocal glasses, three-lens glasses, and progressive multifocal lenses.