Is it possible to measure the topology of the eye lenses?

[hei213]

It is possible to measure the topology of the cornea.
I wonder though if the eye's lenses can have astigmatism? And if so is it possible to measure their topology in a similar fashion to the way we can measure the cornea's topology?

[JohnHaganMD]

Yes the topography of the human lens can be measured with both A-scans and B-scan technology and now OCT technology.

[hei213]

Thanks for the answer, I didn't know that OCT can measure this as well. I had OCT exams but as part of a retinal prevention checkup (due to my myopia).

[hei213]

One more thing if I may. If you check my history I asked a lot here about a blurry spot in my right eye's central vision that couldn't be explained by anything ever after a comprehensive dilated eye examination (which was more targeted towards checking my retina health and cornea's topology).
Do you think that very narrow blurry spot could be due to a lens disorder? Googling this lead me to "lenticonus", unsure if that would explain my symptoms.

[JohnHaganMD]

Lenticonus should be easy for your ophthalmologist to see with your pupils dilated.  Measuring the lens shape with OCT is a special application and requires special equipment and software.

[hei213]

Even posterior lenticonus?

[JohnHaganMD]

It is usually easy to see: LINK http://www.missionforvisionusa.org/2007/07/posterior-lenticonus.html  

[hei213]

It really is, so I guess after my visits the doctors would have found it instantly. I think then I don't have this condition but I have its hallmarks mentioned (high astigmatism, blur in central vision etc), strange. Anyway thank you for the info.

[JohnHaganMD]

You are welcome.  Have regular exams and if new problems come up or present symptoms worsen call your Eye MD ophthalmologist.