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Glasses, also known as eyeglasses and 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.
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.
Concerns have also been raised on operating motor vehicles while wearing the device. On July 31, 2013, it was reported that driving while wearing Google Glass was likely to be banned in the UK, being deemed careless driving, therefore a fixed penalty offense, following a decision by the Department for Transport. [123]
This is a list of world records in Olympic weightlifting. These records are maintained in each weight class for the snatch lift, clean and jerk lift, and the total for both lifts. The International Weightlifting Federation (IWF) restructured its weight classes in 1993, 1998 and 2018, nullifying earlier records.
Typical pair of single vision glasses. Single vision lenses correct for only one distance. If they correct for far distance, the person must accommodate to see up close. If the person cannot accommodate, they may need a separate correction for near distances, or else use a multifocal lens (see below).
Stratton wore these glasses over his right eye and covered the left with a patch during the day, and slept blindfolded at night. Initial movement was clumsy, but adjusting to the new environment took only a few days. [59] Stratton tried variations of the experiment over the next few years. First he wore the glasses for eight days, back at Berkeley.
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