PPRuNe Forums - View Single Post - Any experiences of lens replacement (cataract or otherwise)?
Old 1st May 2012, 00:05
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Zamfire
 
Join Date: Feb 2007
Location: California
Age: 60
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Broomstick -

I think you got wrong info on the Light Adjustable Lens - it is perfectly fine for night and flying; it is essentially a monofocal lens like a standard IOL, except it can be altered after insertion in a totally non-invasive way (by UV light from a very clever machine) to fine tune the power. Apart from it's "tunability" it is exactly the same as a regular monofocal.

The lenses that are discouraged for pilots are multifocals - these have concentric rings of varying power which can cause some halos or glare, though it is far from universal; some people cope fine with them, but you get nothing for free in physics and the price you pay is the loss of crispness in your vision, though you may be able to focus perfectly, you simply don't get to use all the available light.

Just thought I'd clear that up.
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