Stenopeic contact lenses have a totally transparent substrate and only a small hole through which concentrates the sun's rays and which can be seen. These contact lenses can help in aniridia:/glossary/aniridia.html, albinism and extensive defects of the iris, which is the size of the aperture, which regulates the access of light into the eye , thus allowing vision.
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We would love to help but, unfortunately, we don't sell this product. I hope you will manage to find it asap.