Ads
related to: amazon reading glasses 4.0 or higher price
Search results
Results from the WOW.Com Content Network
Man with glasses. A woman with glasses. Glasses, also known as eyeglasses or spectacles, are vision eyewear with clear or tinted lenses mounted in a frame that holds them in front of a person's eyes, typically utilizing a bridge over the nose and hinged arms, known as temples or temple pieces, that rest over the ears for support.
Higher-quality optical-grade glass materials exist (e.g. Borosilicate crown glasses such as BK7 ( n d = 1.51680 , V d = 64.17 , D = 2.51 g/cm³ ), which is commonly used in telescopes and binoculars, and fluorite crown glasses such as the best optical quality low dispersion glass currently in production, N-FK58 made by the German company Schott ...
Amazon.com, Inc., [1] doing business as Amazon (/ ˈ æ m ə z ɒ n /, AM-ə-zon; UK also / ˈ æ m ə z ə n /, AM-ə-zən), is an American multinational technology company engaged in e-commerce, cloud computing, online advertising, digital streaming, and artificial intelligence. [5]
Google Glass, or simply Glass, is a discontinued brand of smart glasses developed by Google's X Development (formerly Google X), [9] with a mission of producing a ubiquitous computer. [1] Google Glass displays information to the wearer using a head-up display. [10] Wearers communicate with the Internet via natural language voice commands. [11] [12]
Using a phoropter to determine a prescription for eyeglasses. An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist, that specifies the value of all parameters the prescriber has deemed necessary to construct and/or dispense corrective lenses appropriate for a patient.
Adaptation to the small field of view offered by the reading segment of bifocals can take some time, as the user learns to move either the head or the reading material rather than the eyes. Computer monitors are generally placed directly in front of users and can lead to muscle fatigue due to the unusual straight and constant movement of the ...
Ads
related to: amazon reading glasses 4.0 or higher price