Sunglasses: Difference between revisions

The color of the lens can vary by style, fashion, and purpose, but for general use, [[green]], [[grey]], [[yellow]], or [[brown]] is recommended to avoid or minimize [[color perception|color distortion]] which would be dangerous when, for instance, driving a car. Grey lenses are considered neutral because they do not enhance contrast or distort colors.  Brown and green lenses cause some minimal color distortion, but have contrast-enhancing properties.  Red lenses are good for medium and lower light conditions because they are good at enhancing contrast but causes color distortion.  Orange and yellow lenses have the best contrast enhancement at depth perception but cause color distortion.  Yellow lenses are commonly used by [[golfers]] and [[shooters]] for its contrast enhancement and depth perception properties. Blue and purple lenses offer no real benefits and are mainly cosmetic. Clear lenses are used typical to protect the eyes from impact, debris, dust, or chemicals.  Some sunglasses with interchangeable lens have optional clear lenses to protect the eyes during low light or night time activities. Debate exist as to wether "blue blocking" or amber tinted lenses may have a protective effect.<ref name="AAO">American Academy of Ophthalmology. [http://www.aao.org/aao/patients/eyemd/upload/Sunglasses.pdf "Information from Your Eye M.D.: Sunglasses."] November 2003.</ref>