TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

BACK PERIPHERAL OPTIC ZONE RADIUS [1 record]

Record 1 2020-10-20

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Orthoses
  • Prostheses
  • The Eye
Universal entry(ies)
rn
symbol, see observation
DEF

The radius of curvature of a back peripheral optic zone of a multifocal contact lens.

OBS

In the symbol, the letter "r" is italicized and the letter "n," which is written in subscript (rn), is to be replaced by either the number "1" or "2."

OBS

Glasses and contact lenses are considered to be either visual orthotic devices or visual prosthetic devices.

OBS

back peripheral optic zone radius: term and definition standardized by the International Organization for Standardization (ISO) in 2006.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Orthèses
  • Prothèses
  • Oeil
Entrée(s) universelle(s)
rn
symbol, see observation
DEF

Rayon de courbure d'une zone optique périphérique postérieure d'une lentille de contact multifocale.

OBS

Dans le symbole, la lettre «r» s'écrit en italique, et la lettre «n», qui s'écrit en indice (rn), doit être remplacée soit par le chiffre «1» ou «2».

OBS

Les lunettes et les lentilles de contact sont considérées comme étant soit des orthèses visuelles, soit des prothèses visuelles.

OBS

rayon de la zone optique périphérique postérieure : terme et définition normalisés par l'Organisation internationale de normalisation (ISO) en 2006.

Spanish

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