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Scientists have been creating perfect contact lenses

You probably know those people who have two pairs of glasses: one for close, others for distance, the fact is that they suffer from age-related farsightedness or presbyopia. As you understand, using two glasses is inconvenient. In this regard, ophthalmologists have developed and produced glasses with bifocal lenses that allow you to perfectly see at different distances. However, wearing glasses is not always comfortable, for example, with some active activities, sports, and also in winter, when they fog up. Therefore, there are multifocal contact lenses that allow you to see at any distance. The device of such lenses is simple. They have three zones of vision: for the distance, at medium distances and for near. That is, when a person needs to look at something close, the eye adjusts and uses the zone for close range, and in the distance for long range. It takes time for the eyes to adapt to wearing such lenses.


However, scientists decided to step further and, possibly, in a few years, multifocal glasses and contact lenses will remain in the past. American scientists are in the process of developing contact lenses that can automatically adjust so that a person can see well at the distance he needs.

Such contact lenses are supposed to have a complex structure based on a variety of microscopic sensors embedded along the edge of the lens of elastic material, which will allow you to see even in low light. The development of these lenses of scientists was pushed by the device of the eyes of fish Nile elephant. The retina of her eyes has several cup-shaped dimples, the side walls of which reflect light well. Thanks to this arrangement of the retina, the Nile elephant sees perfectly even in troubled waters.

Based on this knowledge, scientists have developed a small device (it will be mounted in a lens) with a thousand light collectors made of aluminum, which reflect the incident light on the side walls. At the moment, testing of the invention is being conducted on a mechanical model of the eye. And now the lens is able to focus on objects with a size of 20 micrometers, this is a width approximately equal to human hair.

Scientists call the approximate timelines for the release of such contact lenses on the market, they range from five to ten years, since this is a complex project. The inventors have yet to create a power source for the lens to work, most likely it will be a miniature solar battery.

Scientists hope that their development will help many people not to experience the inconvenience of wearing glasses with hyperopia.


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