Focus

Focus Contact Lenses

Focus contact lenses are one of the major brands of contact lenses on the market today. Contact lenses from Focus can be a great way to improve your eye sight without the need for eyeglasses.

When eyeglasses were invented, it was possible for millions of people to see more clearly. Then when contact lenses were made—even the Focus contact lenses—corrective lenses that could be placed directly on the eye ball made it possible for people to see more clearly without anyone even knowing that they needed any help in seeing. Many people had a lot of different opinions about contact lenses when they were first rising to prominence in the 1980s and 1990s.

Focus Contact Lens

Many people viewed contact lenses as a major improvement over glasses. But many people decided they were merely an ego-gratifying cosmetic device that keeps you from having to wear glasses. The truth may be somewhere in the middle. Contact lenses were created, as it is said, by Leonardo da Vinci, when he stuck his head in a large bowl of water and realized that liquid pressing against his eye cleared his distorted vision. He wrote this discovery down in one of his notebooks.

Some three hundred years later, an English physicist replaced the bowl of water with a water-filled tube and placed a lens at one end of it. He saw a sharp image and it was a more practical discovery. Contact lenses were later created made out of glass. And then the next generation of contact lenses arrived in the late 1940s and 1950s, when plastic, small, round contacts could be placed right on top of your eyeballs.

Focus Toric Contact Lens

When people were trying to put together the modern contacts—including the Focus contacts—researchers tried different materials to make contact lenses more comfortable by tapering and smoothing the edges. Doctors and contact lens makers figured out that while large and heavy lenses caused eye and eyelid irritation, the major source of eye pain from wearing contact lenses was oxygen starvation. The lenses blocked the normal supply of air to the cornea. The less air that the cornea received, the more pain people were in. As researchers continued looking into contact lenses, they realized that small amounts of oxygen are normally dissolved in tears. And because the cornea is constantly lubricated by tears and since contact lenses actually float on a thin layer of tears, these scientists realized that the best way to ease the discomfort would be to find a way to let more tears come into contact with the cornea.