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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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Aphakes can benefit greatly by using a progressive variable focus lens.


- Point -

 Aphakes can benefit greatly by using a progressive variable focus lens.



- Point Word-

  • Aphakes

  • progressive variable focus lens (IOL ; Intraocular Lens)



- Explanation -

  

Aphakia can implant IOL. There are several types of IOL. There are monofocal, bifocal, and progressive variable focus lenses. The lens should be selected according to the patient's habits and living environment. The main work type, working distance, and even the lighting of the living environment should be checked.

 Aphakia can implant IOL. There are several types of IOL. There are monofocal, bifocal, and progressive variable focus lenses. The lens should be selected according to the patient's habits and living environment. The main work type, working distance, and even the lighting of the living environment should be checked.





There are several types of IOL lenses. The image above shows the structural features and types of IOLs.

Image above : You can check the shape and type of intraocular lens.

Credit : ScienceDirect, ScienceDirect website   link

 

 There are several types of IOL lenses. The image above shows the structural features and types of IOLs.





There are many types of progressive variable focus lenses. Each lens has different diopters for distance, intermediate distance, and near distance, and different focal lengths. Accordingly, each lens has its own unique advantages. The appropriate lens should be determined based on the patient's lifestyle and environment.

Image above : There are many different types of progressive variable focus lenses.

Credit : Seelife.net, Hopewell Lamvertville website   link


 There are many types of progressive variable focus lenses. Each lens has different diopters for distance, intermediate distance, and near distance, and different focal lengths. Accordingly, each lens has its own unique advantages. The appropriate lens should be determined based on the patient's lifestyle and environment.






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