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The number of children who need glasses to see far away objects—a condition known as myopia—is increasing and current projections suggest that by 2050, 50 percent of the world’s population will be affected.Sex Doll Silicone Women

In the 1970s, 25 percent of Americans had myopia; but just three decades later prevalence rose to 42 percent. Although genetics is responsible for some cases of myopia, scientists now believe that environment also plays a major role. Now researchers are starting to untangle the reasons for the skyrocketing rates and devise ways of slowing down and reversing a child’s declining vision—which is important for their overall quality of life and their risk for developing vision loss later in life.

“Kids are becoming nearsighted at rates that are faster than we’ve ever seen before,” says Nick Onken, an optometrist at the University of Alabama, Birmingham. “It’s faster than even genetics alone can account for.”Pussy Silicon Sex Doll

“We’ve known for decades that the more nearsighted the person is,” says Onken, “the higher the likelihood they are for losing vision when they’re older, due to conditions like retinal detachment, glaucoma, macular degeneration and cataracts.”

Myopia often starts during childhood, due to a mismatch between how fast the eye is growing and where light is focusing on the retina.

“The condition of myopia or nearsightedness is caused by the fact that the eye is too long,” says Carolyn Lederman, an ophthalmologist based in Purchase, New York. When the entire eyeball grows longer than it should, this creates a situation where the focusing components of the eye—the cornea and the lens—target light just in front of the retina, rather than on the retina, which causes far-away objects to appear blurry.Real Japan Sex Doll

As it turns out, the age at which a child first becomes myopic is often predictive of how bad their vision will end up.

“The biggest predictor of how nearsighted you’re going to be, is when you become nearsighted,” says Jeffrey Walline, an optometrist and associate dean of research at The Ohio State University. As Walline explains, the younger a child is when they first become nearsighted, the worse it will end up as, due to the length of time that the eyeball spends growing longer than it should. For most children, their vision will stabilize during their late teenage years, although for a minority of individuals, this process will last until their mid-20s.