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bifocal

Saltos de línea: bi|focal
Pronunciación: /bʌɪˈfəʊk(ə)l
 
/

Definición de bifocal en inglés:

adjetivo

Denoting a lens having two parts each with a different focal length, one for distant vision and one for near vision.
Example sentences
  • The multiple vision lenses include bifocal lenses for near and distant vision.
  • Three different designs for bifocal contact lenses exist: simultaneous, concentric and alternating vision.
  • Alternatively, some people use varifocal or bifocal lenses in order to see objects clearly that are both close up and far away.

sustantivo

(bifocals) Volver al principio  
A pair of glasses with bifocal lenses.
Example sentences
  • I wear bifocals or reading glasses - can I still wear contact lenses?
  • He put on a pair of glasses with clear, thick lenses that looked like bifocals.
  • This new refractive procedure is capable of reducing or even eliminating the need for bifocals or reading glasses for certain categories of patients.

Definición de bifocal en:

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