How Do You Spell DIOPTRE?

Pronunciation: [dɪˈɒptə] (IPA)

Dioptre is a term commonly used in optics to describe the measurement of the refractive power of a lens. The spelling of this word is derived from the Greek word "dioptra," which means "to see through." The correct pronunciation of "dioptre" is [daɪˈɒptri], with the stress on the first syllable. IPA phonetic transcription makes it easier to understand the pronunciation of words, especially those that are derived from foreign languages. Dioptre is spelled with an "e," not an "r," although the pronunciation may sometimes lead people to spell it with an "r."

DIOPTRE Meaning and Definition

1. A dioptre, in the field of optics and ophthalmology, is a unit of measurement used to quantify the refractive power of a lens or the focusing ability of the eye. Specifically, it measures the amount by which a lens or cornea can bend or diverge light rays. The term "dioptre" is derived from the French word "dioptrie" and is internationally recognized as the standard unit of measurement for optical power.

   One dioptre is equal to the reciprocal of the focal length in meters. Therefore, if a lens or cornea has a refractive power of +1 dioptre, it means it can converge parallel light rays into a focal point situated one meter away from the lens. Conversely, a refractive power of -1 dioptre indicates the ability to diverge light rays as if they are coming from a focal point one meter behind the lens. Lenses with higher dioptre values have stronger refractive powers – they can bend light more effectively than those with lower values.

   In ophthalmology, the term dioptre is commonly used to describe the measuring unit of lens prescriptions. Optometrists or ophthalmologists assign positive dioptre values for prescriptions required for correcting farsightedness (hyperopia) and negative dioptre values for prescriptions used to correct nearsightedness (myopia). Additionally, dioptres are also employed to evaluate the focusing ability of the eye itself, aiding in diagnosing vision disorders and determining appropriate corrective measures.

Common Misspellings for DIOPTRE

• sioptre
• xioptre
• cioptre
• fioptre
• rioptre
• eioptre
• duoptre
• djoptre
• dkoptre
• dooptre
• d9optre
• d8optre
• diiptre
• dikptre
• dilptre
• dipptre
• di0ptre
• di9ptre
• diootre

Etymology of DIOPTRE

The term "dioptre" is derived from the Greek word "dioptra" (διόπτρα), which originally referred to a surveying instrument used to measure angles and distances. The Greek word "dioptra" is a combination of "dia" (through) and "optron" (I see). Over time, the term "dioptra" began to be used in the field of optics to refer to a unit of measurement for the refractive power of lenses. It was later anglicized and spelled as "diopter" or "dioptre" in English.

Similar spelling words for DIOPTRE

• deport,
• deports,
• poetry,
• depot,
• rapture,
• tiptoed,
• rupture,
• tiptoe,
• depart,
• capture,
• dipped,
• Deported,
• torture,
• Tiptoes.