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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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Antimetropia


- Point -

  Antimetropia - Condition characterized by Rx's with opposite signs eye to eye

      (- in one + in the other)



- Point Word-

  • Antimetropia

  • Condition characterized by Rx's with opposite signs eye to eye

  • - in one + in the other



- Explanation -

  

Antimetropia means different eyes. One eye is Hyperopia and the other is Myopia. In order to correct refractive errors, a + lens is needed for Hyperopia eyes and a - lens is needed for Myopia eyes.


 Antimetropia means different eyes. One eye is Hyperopia and the other is Myopia. In order to correct refractive errors, a + lens is needed for Hyperopia eyes and a - lens is needed for Myopia eyes.





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