• The U.S. Army has developed a prototype of "augmented reality" digital glasses designed for service dogs assigned to various combat units.
• John Lennon gave his round glasses to his butler in 1965. It is believed to be the first pair of round glasses the performer owned.
• Джон Ленън е носил контактни лещи през първите си години и е държал очилата си далеч от публиката.
• The Ocean Cleanup project is a non-governmental organization that aims to clean the Great Pacific Island of plastic by making $199 sunglasses.
• Wearing sunglasses protects against harmful UV rays. The dark filter is soothing and you don't have to squint. This, in turn, reduces the risk of eye wrinkles.
• At the 1988 Winter Olympics in Calgary, athletes from various nations and disciplines won 16 gold, 13 silver and 16 bronze medals while wearing Carrera sunglasses.

And are you wearing the right glasses?

• There is a case of conjoined twins from Canada who have a common thalamus. Thanks to this, they could hear each other's thoughts and see through each other's eyes.
• To see nocturnal predators sleep with one eye open. One half of their brain hemisphere is asleep while the other is awake.
• An ostrich's eye is bigger than its brain.
• The human eye sees only three colors: red, blue and green. The other colors are a combination of these colors.
• An ideal length of eye contact with a person you are meeting for the first time is 4 seconds. That's all it takes to determine what color his eyes are.
• Your fingerprints have 40 unique characteristics and your iris has 256. It is for this reason that retina scanning is used for security purposes.
• People say you don't have time to blink because it's the fastest muscle in the body. Blinking lasts about 100-150 milliseconds, and you can blink 5 times per second.
• A person's tears differ in composition, depending on what they are caused by (joy, sadness or external stimulus).

• The eyes fix about 50 things per second.
• We blink an average of 17 times per minute, 24,480 times per day and 8,935,200 times per year.
• We see with our brains, not our eyes. In a number of cases, when poor vision is blurred, the cause is not in the eyes, but in the visual cortex of the brain.
• The images that are sent to our brain are actually reversed.
• The newborns don't cry tears.
• The cornea of the eye may get sunburned.
• Schizophrenia can be determined with up to 98.3% accuracy with a conventional eye movement test.
• If the human eye were a digital camera, it would have 576 megapixels.
• We spend 10% of our waking hours with our eyes closed.
• The eyes use about 65% of the brain's resources. That's more than any other part of the body.
• A story about the Cyclops appeared thanks to the peoples of the Mediterranean islands who discovered the remains of extinct pygmy elephants. The elephant's skull was twice the size of a human, and the central nasal cavity was mistaken for an eye.
• Each eyelash lives for about 5 months.
• The Mayans considered squints attractive and tried to make their children squints.
• The eyes process about 36,000 bits of information per hour.
• Octopus eyes do not have a blind spot, they evolved separately from other vertebrates.
• The folds that appear in our eyes are called "floating cloudiness." This shadows the retina with tiny strands of protein inside the eye.
• Vision at astigmatic eyes It is quite different; in cases of high degrees of astigmatism, visual acuity (the measure that characterizes the resolving power of the human eye) is reduced. This reduction occurs not only due to a blurred image but also because of its distortion.

Do you know what a delight for the eyes is?

• Bees have a train in their eyes. They help them determine the direction and speed of flight.
• About 65% -85% of the blue-eyed white cats are deaf.
• During Chernobyl, a firefighter with brown eyes turned blue due to the strong radiation he received. He died two weeks later from radiation poisoning.
• Shakespeare says in Othello that jealousy is "a monster with green eyes," and in fairy tales, movies, and various mythologies, villains are usually depicted as green-eyed.
• About Leonardo da Vincivision was a means of reviving knowledge. He believed that the five senses were connected at a point behind the eye.
• Progressive lenses were first introduced in 1959. They were designed by the French engineer and optician Bernard Maitenais. He created a technology for processing an optical surface with variable refraction.
• Tsar Alexei Mikhailovich had 6 pairs of glasses, Patriarch Nikon - 8. One of them is preserved in the Patriarchal Palace of the Moscow Kremlin. It is kept in a pear-shaped silver case decorated with silver birds. The glasses are foldable.
• Catherine the Great began experiencing vision problems in 1770 and a gold-framed monocle with diamonds was commissioned for her for 1219 rubles. One of her pairs of glasses is still intact.
• The volume of the eye sockets in owls is almost entirely occupied by the body of the eyeball.
• The lens of an owl's eye is not located in a flattened eyeball, as in other birds, but in a deep horn tube.
• The eyes of owls are not spherical as they look. They are telescopic.
• It is a curious fact that some of the first records of contact lenses date back to 1508. Then Leonardo da Vinci, pushed the idea of vision correction by placing a hemisphere made of glass filled with water, on the The Cornea.