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Computer vision syndrome. Computer vision syndrome (CVS) is a condition resulting from focusing the eyes on a computer or other display device for protracted, uninterrupted periods of time and the eye's muscles being unable to recover from the constant tension required to maintain focus on a close object.
Description and purpose. Chicken eyeglasses were often made from celluloid or aluminum [5] and typically consisted of "two oval panels that fit over the upper beak of the chicken. A pin is put through the nostril to hold the oval pieces in place." [2] Different designs were produced that attached to the chicken's head in different ways.
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 ...
The fitted sheet has head and foot side indicators, as well as deep pockets that fit mattresses eight to 16 inches thick. The set comes in sizes from twin to California king.
The good news just keeps on rolling in! Wayfair's extended their Way Day sale for two more days. This will give you access to up to 80% off everything and anything you can think of for your home.
Micropsia is a condition affecting human visual perception in which objects are perceived to be smaller than they actually are. Micropsia can be caused by optical factors (such as wearing glasses), by distortion of images in the eye (such as optically, via swelling of the cornea or from changes in the shape of the retina such as from retinal edema, macular degeneration, or central serous ...
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Man wearing a 1998 EyeTap, Digital Eye Glass. [1] Smartglasses or smart glasses are eye or head-worn wearable computers. Many smartglasses include displays that add information alongside or to what the wearer sees. [1][2][3] Alternatively, smartglasses are sometimes defined as glasses that are able to change their optical properties, such as ...
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