Glasses is a notion that refers to glasses whose attachment is made behind the head or taking advantage of the structure of the ears . Glasses, meanwhile, are optical instruments that include two lenses to improve the vision of the person who uses them.
Typically, the term is used in the plural: glasses . It is important to keep in mind that, in colloquial language , glasses , glasses and lenses are concepts that are used as synonyms, although each of them predominates in different Spanish-speaking regions.
For example: “Where have I left my glasses? I want to read the newspaper and I can't find them” , “My mother gave me sunglasses for my birthday” , “Take off your glasses to play soccer: otherwise you may get hurt” .
Glasses consist of a frame or frame that holds the lenses. The frame has two temples that rest on the ears and an arch that is located over the nose. In this way, the lenses are right in front of the user's eyes, who can correct vision defects, such as astigmatism or myopia .
Glasses frames were originally produced from steel or iron. Over time, manufacturers began to use resins. Currently, it is common to use titanium or aluminum alloys. As for lenses, we can find them made of glass , plastic polymers or polycarbonate .
Beyond glasses whose lenses allow the correction of vision defects, there are also other types of glasses. The sunglasses feature dark lenses to block ultraviolet rays and protect your eyes from sunlight. There are also protective glasses that are used in certain jobs and even in the field of sports.
Sunglasses are one of the most common accessories in hot weather, although in certain parts of the world they are worn all year round. It is a product that is very useful in summer to prevent sunlight from hindering our movement on public roads, but it also serves to protect our eyes when we are outdoors. During summer beach vacations, for example, most people use them.
Cleaning glasses is an activity that takes time to master, especially because at first it is not easy to leave them absolutely stain-free and this generates discomfort that can lead to headaches or interference with a treatment. There are several products designed specifically for this task, although it is also possible to carry it out without them.
One of the most common products is sold in spray form, in small bottles whose content is a liquid that cleans the lenses of glasses without leaving residue that could cause scratches. These sprays are usually sold together with microfiber cloths, ideal for spreading the liquid and then drying the crystals for a good finish.
It is important not to spray too much liquid on the glasses, to avoid creating a "paste." Finding the sweet spot takes time. There is also a product that, instead of a sprayer, consists of a bottle with a sponge in the spout that we must moisten and then pass over each of the lenses. The final step is always to dry the glasses with the microfiber cloth until not a single stain is visible.
An alternative to these products is to use tap water and hand soap , although in areas with a lot of limescale this can cause marks on the glass.