Without Optometry: Optometry do not need to wear glasses holes and avoid damage to the eyes due to refraction lens wear is not accurate caused. Just school, , writing, watching wearing. Relaxation with the use of better: with the eye to adjust other systematic approach to relax better. Unsuitable width can be adjusted: If the glasses width discomfort, can the ends were a little hot water after heat shaping can. Regardless of whether you're short or long-sighted, your vision will become clearer with pinhole glasses. Just the same as your regular glasses, e.g. for , working on the computer or going for a walk in the woods. Suitable for both short and long-distance. The cause of eye strain can often not be remedied with glasses or contact lenses. The pinhole glasses can be anyone and do not need to be specially fitted by an optician.