For some, glasses are a means of vision correction, while others wear them as a fashion accessory. Sometimes they were used by workers of certain professions back in ancient times, and this is proven by some interesting historical facts.
What interesting things can you say about glasses?
This seemingly simple accessory has a fairly rich history, which is associated with many historical figures.
When were glasses invented?
The Arabs are considered the first inventors. The remedy was elementary and completely different from what we are used to seeing. The Arab scientist Ibn al-Haytham described the structure of the eye and its ability to see better using a spherical piece of glass or translucent stone.
But in the version in which we are accustomed to seeing them, the first, according to the Pisans, invented by monk Alessandro della Spina in the 13th–14th centuries. The Florentines, in turn, claim that the first was the monk Salvino d'Armato in the same time period. They were originally intended for people with farsightedness.
Glasses for myopia were invented in the 16th century.. Historians compare this event with the invention of printing and the spread of literacy. The expensive accessory was first worn by the ruling circles: kings, electors, popes. In the seventeenth century they were brought to Russia: they were used by Patriarch Nikon and Tsars Mikhail Fedorovich and Alexei Mikhailovich.
It is noteworthy that At first they were fastened with an elastic band, and in the 18th century, Edward Scarlett invented the temples that we still use today.
Unusual Uses for Glasses
- In the 19th century, Swiss scientists patented glasses against seasickness. Liquid is poured between two glasses, which creates the appearance of a horizon. This illusion regulates the functioning of the vestibular apparatus.
- Today, the introduction of specialized glasses has begun among machinists and drivers. A sensor is built into the frame that monitors the blinking of the employee. As soon as a deceleration is detected, a sound signal is automatically given.
- In Europe and the USA, special educational glasses are used, which simulate alcohol intoxication. They are worn during physical education lessons and the student must perform simple coordination exercises. This invention makes schoolchildren think about the consequences of drinking alcohol.
- Some poultry farms in Denmark use glasses for cocks. According to farmers, in this way the animals' visual acuity decreases and they fight less.
Glasses in psychology
A person who uses glasses as a means of vision correction visually looks smarter and is more trustworthy.
Due to the fact that glasses can hide emotions and thoughts, they were mandatory for judges in Ancient China.
Sunglasses
The inventors of sunglasses are the Eskimos, residents of the Far North. Thin holes were cut into the wooden plate. This is a device was intended to protect against the blinding shine of snow.
The first batch on an industrial scale was produced by order of Napoleon in the 18th century. The Emperor included them in the mandatory equipment of the army for the Egyptian expedition. More than 200 thousand pieces were produced. Soldiers who refused to wear them later developed cataracts.
But this is not the only case where the military uses the accessory. Chinese soldiers practice night operations during the day. To give a sense of reality, soldiers are given sunglasses.. At the same time, management can track all errors when performing actions.
But in America they included in the equipment of police and military. The accessory is made of impact-resistant materials, and also gives authority to the appearance. In addition, the accessory helps to hide the emotions of employees.
Today, many residents of sunny countries use them not only for protection from the sun, but also to prevent the early appearance of wrinkles.
Interesting facts about glasses
In 2004, Errold Jessaran, an employee of the Dutch company Jess Optiek, invented the world's largest glasses. Their width is about 2 m, and the diameter of each lens is 68 cm. For a long time, the glasses were sold at auctions, but it is still unknown whether a buyer has been found.
Switzerland also decided to stand out. They released a model called Jewel Sunglasses. It is recognized as the most expensive. Its price is 408 thousand dollars.
For eye health
To ensure that glasses do not become a means of vision correction, but only a fashion accessory, it is necessary to regularly check your vision and also take proper care of them.
Blueberries and blackberries have a beneficial effect on vision. Thanks to these berries you can maintain visual acuity. However, just tasty berries are not enough. Scientists have proven that Indigo color has a beneficial effect. It is recommended to look at this color for at least 15 minutes a day. Regular intake of vitamin C reduces the risk of developing various eye diseases, for example, cataracts.
The existence of the accessory proves the fact that people at all times have been concerned about their eyesight, which tends to deteriorate. Modern fashion allows you not to experience embarrassment or discomfort; moreover, this accessory sometimes becomes an integral part of the image.
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