One can wear these pinhole glasses while watching TV or reading instantly makes it easier for your eyes to focus with less strain. Great for those who are nearsighted, farsighted, have cataracts, astigmatism or struggle to read small print. They can often replace more expensive prescription eyeglasses.
Perfect vision in the unaided eye requires the eye lens to focus light rays from diverse angles into a single pinpoint directly on the retina at the back of the eye. For sufferers of refractive eye disorders, where the eye lens is too weak or the cornea or eyeball is misshapen, divergent light rays become focused in front of or behind the retina, casting an unfocused image onto the retina itself. This unfocused area of light is known as the 'blur circle'.
Pinhole glasses work by reducing the diversity of angles from which light rays can enter the eyes, allowing only direct light rays within a narrow angular path to strike the cornea.
The lenses of pinhole glasses are perforated with an array of equally spaced minute holes. In contrast the average diameter of the pupil in normal daylight conditions is about 4mm. Each pinhole allows only direct rays through, and it is the amalgamation of these direct rays that make up a concentrated beam of light that enters the pupil. When this restricted light beam passes through the pupil and into the eye lens, the effects of any refractive eye disorders are reduced as the 'blur circle' on the retina is proportionally smaller. The resulting visual image is one of increased clarity, definition and brightness.
So to be frank if you want a better and healthy future then it's better to adopt the glasses and become a part of the health conscious community. For people who have been diagnosed with myopia, hyperopia, presbyopia, astigmatism or cataracts,
pinhole glasses offer instant relief through better vision. You'll really notice the difference when focusing in the middle to long distance, such as when watching TV or reading from a classroom blackboard.
Young people who are very far-sighted and need to refine their visual acuity unaided, should certainly not consider pinhole glasses, or for that matter, any other visual aid to assist their eyesight. It is important for sufferers of this condition to naturally overcome their far-sightedness by giving them every opportunity to build strength into their ciliary eye muscles. This will enable them to reduce their far-sightedness down to more manageable levels.
Mike has been writing and publishing articles about health products. He recently came across a website on
pinhole glasses which gave information about this old technique of using pinhole glasses for eyesight correction. Here's an article about
pinhole glasses.