Difference between Diopter and Dioptre

What is the difference between Diopter and Dioptre?

Diopter as a noun is a unit of measure of the power of a lens or mirror, equal to the reciprocal of its focal length in meters. myopia is diagnosed and measured in diopters. while Dioptre as a noun is a unit of measure of the power of a lens or mirror, equal to the reciprocal of its focal length in meters. myopia is diagnosed and measured in diopters.

Diopter

Part of speech: noun

Definition: A unit of measure of the power of a lens or mirror, equal to the reciprocal of its focal length in meters. Myopia is diagnosed and measured in diopters. Any lens system, such as a telescope A theodolite or similar surveyor's angle measuring device An alhidade A surgical speculum An instrument for drawing the skull by projections.

Dioptre

Part of speech: noun

Definition: A unit of measure of the power of a lens or mirror, equal to the reciprocal of its focal length in meters. Myopia is diagnosed and measured in diopters.

We hope you now know whether to use Diopter or Dioptre in your sentence.

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