عینک eyewear

Lazy Glasses, also known as 90 degree glasses are optical glasses that allow you to read in bed or watch TV while lying flat on your back. The perfect solution for those with limited mobility, these unique bed prism glasses are great for preventing neck cramps or eye strain. The Lazy Glasses turn your view to a downward 90 degree angle, eliminating the need for head movement.

Lie on your back with your head on a pillow, and you'll be able to read a book resting on your chest. People who wear spectacles can wear it only while they are wearing contact lenses. eResearch by Navid Ajamin -- spring 2013

You may have heard of the term ‘prism’ in your science classes or maybe just floating around in conversation. You may have seen pictures of a prism triangle with a stream of light entering one side and streams of different colors appearing on the other.

If the content of PbO is higher than 24%, it is generally called k9 crystal. If the content of PbO is less than 24%, it is not even a k9 crystal, and it can only be called k9 glass. Ultra-white glass is a kind of ultra-transparent low-iron glass, also called low-iron glass and high-transparent glass.

Prisms are commonly known to be shapes of glass or plastic that disperse light into its spectral colors, but they also alter the direction of light coming through from the other side of the prism.

Mirrored-Prism Spectacles

This ability to change the light’s pathway is important in optometry and is one of the solutions that help patients to see clearer.

A prism is a solid shape that is bound on all its sides by plane faces. There are two types of faces in a prism. The top and bottom faces are identical and are called bases. A prism is named after the shape of these bases.

A prism may fix double vision from eye misalignment when caused by: Eye muscle problems, such as myasthenia gravis, Graves' disease, or strabismus (crossed eyes or wall eyes) Neurological (brain-related) issues, such as head injuries, stroke, migraine, or tumor.