Yes, the pinhole glasses help improve your vision to some degree. With the scientific design, the pinhole glasses can filter the not normal light, let the light go through the holes into the cornea and make the refractive focus on the lens. Its working principle is just like that of telescope principle. People with any eyesight can wear pinhole glasses, such as with the eye fatigue, myopia, presbyopic and astigmatism presbyopia. Even cataract patients can wear pinhole glasses to improve eyesight. You may wear them at day. The continuous wearing eight hours a day may help improve your vision. And you will see the effect.
Yes, pinhole glasses really work. Pinhole glasses work like a telescope. They use small holes to filter abnormal light and gather the light and let the light into cornea and then you can see things clearly. Anyone who has bad sight can wear this pinhole glasses. Though pinhole glasses can't improve eyesight, they can prevent eyesight declining. To some extent, they can help us relive fatigue for our eyes. You can wear pinhole glasses for eight hours a day. Our eyes needs to breathe and needs to have a rest. So when you don't need them, just take them away.
Yes. I heard that Pinhole Glasses can help people with nearsighted. But i never tried. So, i am not sure. And if you never wear Pinhole Glasses, you need some times to adapt it. The first day, you can try to wear it for five minutes a day. And then, build up to to 15-20 minutes daily. Hope this can help you.
Of course, they do a good job to your eyes. As we know that unlike other prescription glasses, pinhole glasses produce an image without the pincushion effect around the edges so that they can simply allow your brain to more easily decide how to focus. Also, they are known to be useful for people who are both near- and far-sighted but you have to pay attention to something like that the worst you can do is to make your eyes tired by giving them too much exercise. So you should reduce the amount of time you spend each day exercising your eyes. Or you will damage your eyes even your sight. And there are many kinds of pinhole glasses, which have different use time. Maybe you can choose one pair which can just fit you. Maybe one month is good time. Anyway, you should not wear them too long.