Definition of bifocals

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WebNov 28, 2024 · Bifocals are a type of multifocal lens, but there are other types that may work better for you. While there are many great reasons to try multifocal contact lenses, there are some downsides to consider too. Price can be a factor as well. Ultimately, the best way to decide whether to get multifocal contact lenses is to work with your eye doctor. Webbifocals definition: 1. glasses with lenses that are divided into two parts. The upper half is for looking at things far…. Learn more.

Bifocal definition of bifocal by Medical dictionary

Webbifocal glasses: [ bi´fo-kal ] of a lens, having two areas with different refractive powers. bifocal glasses eyeglasses in which each lens is made up of two segments of different refractive powers, or strength. Generally, the upper part of the lens is used for ordinary or distant vision, and the smaller, lower section for near vision, for ... Webbifocals: 1 n eyeglasses having two focal lengths, one for near vision and the other for far vision Type of: eyeglasses , glasses , specs , spectacles optical instrument consisting of … digital coherent optics

BIFOCAL definition in the Cambridge English Dictionary

WebWhat Are Bifocal Lenses? Bifocal lenses have been around since the late 18th century and were created when Benjamin Franklin cut two lenses in half (each with different corrective powers) and glued them together. Modern-day bifocal lenses are still made up of two parts. Webbifocal meaning: 1. used to refer to lenses that are divided into two parts. The upper half is for looking at things…. Learn more. WebFeb 27, 2024 · Bifocals and trifocals have visible lines, but the line in a round-seg bifocal tends to be less noticeable than the lines in flat-top … forrest gump where to watch

BIFOCAL Synonyms: 7 Synonyms & Antonyms for BIFOCAL

Bifocals - Wikipedia

WebThe meaning of BIFOCAL is having two focal lengths. How to use bifocal in a sentence. ... Share the Definition of bifocal on Twitter Twitter. Kids Definition. bifocal. 1 of 2 … Webbifocal. 1. Having two focal lengths. 2. Having one section that corrects for distant vision and another that corrects for near vision, as an eyeglass lens. 3. Having two distinct … digital coherent optical systems pdfWebApr 11, 2024 · Bifocals have the prescription for distant vision at the top of the lens and the prescription for near vision at the bottom. This enables them to correct for both a refractive error and presbyopia. This is unlike lenticular glasses, which have all of the power placed in the center of the lenses. SEE RELATED: Bifocal sunglasses digital coin backed by silver

"WebDefinitions. bifocals rate. (Noun) Eyeglasses with two lenses; usually one is for reading and the other for distance viewing. bifocals rate. (Noun) two focals. bifocals rate. " - Definition of bifocals

Definition of bifocals

WebNov 11, 2008 · bifocals / ( baɪˈfəʊkəlz) / See synonyms for bifocals on Thesaurus.com pl n a pair of spectacles with bifocal lenses There are grammar debates that never die; and … WebProgressive lenses are an update on bifocal and trifocal lenses. Both of these more traditional types of glasses have telltale lines in the lenses. Progressives have a …

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WebBritannica Dictionary definition of BIFOCAL. of eyeglasses. : divided into two parts that help a person to see things that are nearby and things that are far away. bifocal lenses/glasses. WebMay 10, 2024 · Bifocal prescriptions cost an additional $29 over the cost of glasses. Each lens comes with a 14-day fit and style warranty for a one-time replacement or refund, …

Webbifocal lens: [ lenz ] 1. a piece of glass or other transparent material so shaped as to converge or scatter light rays. See also glasses . 2. the transparent, biconvex body separating the posterior chamber and the vitreous body of the eye; it refracts (bends) light rays so that they are focused on the retina . Called also crystalline lens . ... WebJan 5, 2024 · Bifocals are special lenses that allow you to see more clearly when you look down to read. When you look up, you can see items that are farther away more clearly. Are there different types of...

WebNov 30, 2024 · No unsightly bifocal line. Progressive lenses offer the benefits of a multifocal lens without a multifocal line. And since there’s a gradual shift in lens strength with a … WebJun 25, 2024 · Bifocal lenses have only two powers: one for seeing across the room and the other for seeing up close. Objects in between, like a computer screen or items on a supermarket shelf, often remain blurry with bifocals. Choose a frame that's big enough to include all viewing zones.

Webnoun Eyeglasses with bifocal lenses. Webster's New World Spectacles that have corrective lenses of two different powers; used by people who need both distance and reading glasses. Wiktionary Advertisement Origin of Bifocals From bi- + focal (see focus), coined in 1824 by John Isaac Hawkins, inventor of trifocals.

Webbifocal: [ bi´fo-kal ] of a lens, having two areas with different refractive powers. bifocal glasses eyeglasses in which each lens is made up of two segments of different refractive … digital coherent optics transceiverWebBifocal definition: having two different focuses Meaning, pronunciation, translations and examples forrest gump what is my destiny sceneWebNov 11, 2008 · Bifocals definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Look it up now! forrest gump where to watch freeWebDefine bifocals. bifocals synonyms, bifocals pronunciation, bifocals translation, English dictionary definition of bifocals. adj. 1. Having two focal lengths. 2. Having one section … digitalcollection zhaw physiotherapieWebbifocal: 2. (of an eyeglass or contact lens) having two portions, one for near and one for far vision. forrest gump when i was tired i sleptWebBIFOCAL meaning: divided into two parts that help a person to see things that are nearby and things that are far away The Britannica Dictionary mobile search Home digital coin money counterWebBifocals are glasses with lenses made in two halves. The top part is for looking at things some distance away, and the bottom part is for reading and looking at things that are … digital coin deep learning training