dioptry Antonyms

No Synonyms and anytonyms found

Meaning of dioptry

Webster

dioptry (n.)

A dioptre.

dioptry Sentence Examples

  1. The dioptry (D) is a unit of measure for the refractive power of a lens.
  2. The power of a lens is measured in diopters, which are the reciprocal of the focal length in meters.
  3. A positive diopter indicates a converging lens, while a negative diopter indicates a diverging lens.
  4. The higher the diopter value, the stronger the lens.
  5. Diopters are used to measure the refractive power of eyeglasses, contact lenses, and intraocular lenses.
  6. People with nearsightedness (myopia) need glasses or contact lenses with negative diopters to correct their vision.
  7. People with farsightedness (hyperopia) need glasses or contact lenses with positive diopters to correct their vision.
  8. Astigmatism is a condition in which the cornea is not perfectly round, resulting in a need for glasses or contact lenses with cylindrical diopters.
  9. Presbyopia is a condition in which the lens of the eye gradually loses its ability to focus, resulting in a need for reading glasses or bifocals with positive diopters.
  10. Dioptry is also used in ophthalmology to measure the power of intraocular lenses implanted during cataract surgery.

FAQs About the word dioptry

A dioptre.

No synonyms found.

No antonyms found.

The dioptry (D) is a unit of measure for the refractive power of a lens.

The power of a lens is measured in diopters, which are the reciprocal of the focal length in meters.

A positive diopter indicates a converging lens, while a negative diopter indicates a diverging lens.

The higher the diopter value, the stronger the lens.