Encyclopedia - Glasses: Encyclopedia - Glasses
Glasses, spectacles, or eyeglasses are frames bearing lenses worn in front of the human eyes, sometimes for purely aesthetic reasons but ...   » Read the article

Encyclopedia - Glasses: Encyclopedia Ii - Glasses - History
Glasses were possibly invented in northern Italy, most likely in the late 1280s. The identity of the original inventor is unknown, althou...   » Read the article

Encyclopedia - Glasses: Encyclopedia Ii - Glasses - Variation In Glasses
Glasses can be very simple. Magnifying lenses for reading that are used to treat mild hypermetropia and presbyopia can be bought off the ...   » Read the article

Encyclopedia - Glasses: Encyclopedia Ii - Glasses - Glasses As A Fashion Accessory
Glasses are often regarded as unattractive, and many people prefer to wear contact lenses for that reason. Contact lenses also provide mu...   » Read the article

Encyclopedia - Glasses: Encyclopedia Ii - Glasses - Sunglasses
Main article: Sunglasses Sunglasses may be made with either prescription or non-prescription (i.e. plano) lenses that are darkened to pro...   » Read the article

Encyclopedia - Glasses: Encyclopedia Ii - Glasses - Safety Glasses
Safety glasses are usually made with shatter-resistant plastic lenses to protect the eye from flying debris. Although safety lenses may b...   » Read the article

Encyclopedia - Glasses: Encyclopedia Ii - Glasses - Special Glasses
The illusion of three dimensions on a two dimensional surface can be created by providing each eye with different visual information. Cla...   » Read the article