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Minimal help: Pinhole glasses will clear up any refractive error so your nearsightedness will improve. But the down side, other than the weird appearance, is that there is a massive drop in the total light input and a restriction in the peripheral field of view, so the pin hole glasses are a good diagnostic test but not a practical solution. ...Read more
Sometimes: If the reason for your poor vision is a refractive error (i.e., can be corrected with glasses), then many times pinhole glasses can improve vision. The reason is that the pinhole only lets one ray of light through a hole, so there is theoretically no focal point where multiple light rays converge, and thus the single ray is 'in focus' at any point along it. They don't work for cataracts, etc. ...Read moreSee 2 more doctor answers
I have seen a lot of mixed opinions on if pinhole glasses will help one's eyes, but will wearing them do any harm?
Blurry vision: Pinhole glasses, like squinting, help to refine your focus generally with distance viewing. The pinholes limit the amount of light entering your eyes and therefore are not practical way of helping your vision. The ophthalmologist uses pinhole acuity to help determine whether a refractive error exists. The pinhole glasses are harmless. Better approach is just getting a refraction for glasses. ...Read moreSee 1 more doctor answer
Yes, in the past: In fact, pinhole eyeglasses were often used a few hundred years ago. The problem with the pinhole is that it makes things appear dimmer, reduces peripheral vision, and just as with all glasses, cannot prevent or stop vision changes. A person would have better focus only while wearing the glasses, but the above side effects make pinhole glasses impractical. ...Read moreSee 1 more doctor answer
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