Home > Terms > English, UK (UE) > Astigmatic power lens

Astigmatic power lens

Lens bringing a paraxial pencil of parallel light to two separate line foci mutually at right angles and hence having vertex power in only the two principal meridians.

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  • Part of Speech: noun
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  • Blossary:
  • Industry/Domain: Eyewear
  • Category: Optometry
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Related terms

astigmatic power lens
Eyewear; Optometry

Lens bringing a paraxial pencil of parallel light to two separate line foci mutually at right angles and hence having vertex power in only the two principal meridians.

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optical centre
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For practical purposes, the intersection of the optical axis with the front surface a lens.

ophthalmoscope
Optometry; Optometry

An optical instrument used to examine the external and internal parts of the eye, particularly the media and the fundus.

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