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centration

centration

9.9
Putting the middle of glasses lenses in line with a person's pupils for clear vision
  • noun
  • /sɛnˈtreɪʃən/
  • Specialized
translation icon : centración
  • Proper centration of the lenses is essential for comfortable vision with new glasses.

Examples

  • Incorrect centration can cause headaches and visual discomfort for the wearer.

  • The optician double-checked the centration before finalizing the order for the spectacles.

  • The optometrist discussed centration during the eye exam.

  • Proper centration ensures the lenses align with your pupils.

  • Proper centration of the lenses is essential for comfortable vision with new glasses.

  • The optician double-checked the centration before finalizing the order for the spectacles.

  • Incorrect centration can cause headaches and visual discomfort for the wearer.

How Aligned

centration
  • Specialized
9.9
misalignment
2 6.3

Surface Forms

centration singular
centrations plural

Morphology

centration = center (semi-transparent) = center + ation

Morphologically clear as 'the process of centering', but the specialized optometric meaning (alignment of lens centers with pupils) may be unfamiliar to general learners.

Etymology

Centration comes from the root center, meaning 'middle', and in optics it means lining the lens's center with the eye's pupil so the lens is in the exact middle for clear and comfortable vision.