trifocal glasses
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trifocal — adjective (of a pair of glasses) having lenses with three parts with different focal lengths. noun (trifocals) a pair of trifocal glasses … English new terms dictionary
trifocal lens — a lens that has three segments with different refractive powers, ordinarily with the upper for distant, the middle for intermediate, and the lower for near vision; used in trifocal glasses … Medical dictionary
Glasses — Glasses, also called eyeglasses or spectacles, are frames bearing lenses worn in front of the eyes, normally for vision correction, eye protection, or for protection from UV rays.Modern glasses are typically supported by pads on the bridge of the … Wikipedia
trifocals — a pair of trifocal glasses. → trifocal … English new terms dictionary
Themes in Blade Runner — Despite the initial appearance of an action film, Blade Runner operates on an unusually rich number of dramatic levels. [ [http://scribble.com/uwi/br 2019: Off World Archives] ] As with much of the cyberpunk genre, it owes a large debt to film… … Wikipedia
trifocals — tri·fo·cals (triґfo kəlz) trifocal glasses … Medical dictionary
Corrective lens — A bifocal corrective eyeglass lens A pair of contact le … Wikipedia
Optician — An optician uses a lensometer to check eye glasses. An optician is a person who is trained to fill prescriptions for eye correction in the field of medicine … Wikipedia
Lens — The transparent structure inside the eye that focuses light rays onto the retina (the nerve layer that lines the back of the eye, senses light and creates impulses that go through the optic nerve to the brain). The lens was named after the lentil … Medical dictionary
eye disease — Introduction any of the diseases or disorders that affect the human eye (eye, human). This article briefly describes the more common diseases of the eye and its associated structures, the methods used in examination and diagnosis, and the… … Universalium
