Do Pinhole Glasses Help Improve Vision?
Pinhole glasses are typically eyeglasses with lenses that are full of a grid of tiny holes. They help your eyes focus by shielding your vision from indirect rays of light. By letting less light into your eye, some people can see more clearly. Pinhole glasses are also called stenopeic glasses.
Pinhole glasses have several uses. Some people use them as a treatment for myopia, also known as nearsightedness. Other people wear them to improve astigmatism.
Some people strongly feel that pinhole glasses work for these conditions
“Eye doctors, both ophthalmologists and optometrists, for many decades have used pinhole glasses clinically to help determine certain things with a patient’s eyes in clinical practice,”
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How do pinhole glasses work?
Pinhole glasses help shield the eye from indirect rays of light. The tiny pinhole-sized perforations restrict the amount of light that enters your pupils.
Less light eliminates diverging rays and reduces what doctors call the ‘blur circle’ on the back of your retina (the layer in the back of the eye that senses light), giving you extra clarity when wearing the glasses.
When a person wears pinhole glasses, the effect on the wearer is similar to that of squinting.
Since only a narrow beam of light enters the eye, it prevents vision distortion, resulting in a clearer image.
Myopia affects nearly 30 percent of people in the United States, estimates the American Optometric Association. People who have myopia have difficulty seeing clearly because of the shape of their eyes.
Pinhole glasses could improve your vision, Putting on pinhole glasses can restrict the amount of light that enters your pupils. This reduces the field of what doctors call the “blur circle” on the back of your retina. This gives your vision extra clarity when you have the glasses on.
Some Eye doctors think that wearing pinhole glasses for a set amount of time each day can improve your overall vision over time, especially if you’re nearsighted or farsighted. 
Pinhole glasses may help people who have astigmatism to see better,
Astigmatism keeps the rays of light that your eyes take in from meeting at a common focus. Pinhole glasses reduce the amount of light your eyes take in. 
Pinhole glasses are advertised as a way to decrease eyestrain.
If you experience glare from working in front of a screen all day, you may think about using pinhole glasses to reduce glare. 
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