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Dispersion = Abbe Number or Constringency Value and Nu Value

- Point -  Dispersion is categorized by Abbe Number or as it is also known by Constringency Value or Nu Value. - Point Word- Dispersion Abbe Number Constringency Value Nu Value - Explanation -  Dispersion refers to the state in which light is scattered or spread out. It refers to the separation of the constituent colors of light, like a rainbow.  Abbe Number is an optical property that describes how much a transparent material scatters light. It is a measure of chromatic dispersion. A higher Abbe Number indicates less dispersion and less chromatic aberration.
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Aniseikonia


- Point -

 Aniseikonia - Dissimilar image size from eye to eye due to uneven magnification.



- Point Word-

  • Aniseikonia

  • Uneven magnification

  • Dissimilar image size



- Explanation -


When looking at an object, the size of the image formed on the retina varies depending on the type of lens to be corrected and the size of the diopter. This is called Aniseikonia.

 When looking at an object, the size of the image formed on the retina varies depending on the type of lens to be corrected and the size of the diopter. This is called Aniseikonia.



Aniseikonia Cliveland Clinic link


Aniseikonia Wikipedia link






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