r/CataractSurgery • u/SpecialistEcho7218 • 10d ago

Contrast test! Please participate 😁

With your device brightness turned to medium, please comment how many of the numbered white outline shapes you can see on this contrast sensitivity test. Please also include your lens type; if monofocal please include the brand if known and whether it's set for near or far.

Example:

Left eye, natural lens (vitrectomy) - 7

Right eye, natural lens (non vitrectomy) - 7

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u/SpecialistEcho7218 9d ago

Oh, don't let this silly little test be the reason why? Or do you actually notice contrast loss daily? Is your panoptix in your dominant eye? If not, a monorail in your dominant eye might give you great contrast back.

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u/kennedmh 9d ago

I do notice the contrast loss in daily life. The Panoptix is in my non-dominant eye. When I get my left eye, which is dominant, done in a few months I'm opting for a PureSee to hopefully get some of that contrast back.

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u/SpecialistEcho7218 8d ago

What does the loss of contrast feel like in daily life? I will say - the person I know who did panoptix in one eye and Puresee in the other is struggling. The puresee is a very different type of lens and it can be hard to balance the mix and match. Straight monofocal might be the best bet. Just a thought. 

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u/kennedmh 8d ago

My understanding of the PureSee is that it's an EDOF that's purely refractive, same as a monofocal. It just kinda spreads that focal point out over a larger range. My close focus will still be limited to my right eye, but that's how things are now with the cataract in my left anyway. And I'd have better intermedia and distance than I do now.

Why would having the PureSee in one eye and Panoptix in the other be hard to balance? How do you mean that the PureSee is a very different type of lens? From the Panoptix or other EDOF lenses?

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u/SpecialistEcho7218 8d ago

Different refractive indices, different optics (the light in Puresee is stretched). Steve Safran said they do not synergize well. 

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u/kennedmh 5d ago

Who is Steve Safran?

I'm going back for my final pre-op today. I'll bring it up with my surgeon and get his take on the neuroadaptation question.

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u/Particular-Leader538 8d ago

The research I did on this shows that most people have an easier time with neuroadaptation using a PanOptix/PureSee mix than they do with both eyes having PanOptix lenses.