T&T: Polarized Sunglasses and LCD Displays

Albin43SDtr Albin43SDtr@comcast.net
Fri Oct 20 13:09:51 EDT 2006


Rich and All,

>I recently got a new pair of prescription sunglasses with polarized
>lenses.  Tilt my head one way and I can't read the monochrome compass
>LCD display, tilt the other way, and the color chart
>plotter/radar/fathometer go black.  .....  Should I loose the sunglasses?

I have to use dark polarized prescription sunglasses whenever I am 
out in the bright sunlight, or even on a bright cloudy day, probably 
as a result of being snow-blinded when I was a kid.

I feel that the advantages far, far outweigh any disadvantages. You 
can see the bottom in shoal water much easier, as well as fish :) . I 
have LCD screens for the upper radar display, fishfinder, and some 
other stuff. Yes, if I tilt my head enough, the screens go dark, so I 
simply don't tilt it when looking at the screens. It shouldn't take 
long to get used to it.

The glasses I got are bifocal, with the lower lens cut so I can see 
the instrument panel, radar and charts clearly at about 24". Doctor 
thought I was nuts until I explained it to him. They are not too good 
for reading. I can read with them - by holding the material at arm's 
length. I tried trifocals and found it too hard to keep focused 
within the smaller bands when on the boat. I have non-prescription 
dark polarized reading glasses, too.

My wife found some plain dark polarized sunglasses that have a 
reading lens cut in the lower part. She does not wear glasses for 
distant vision, but does for reading, so these are perfect for her, 
as the glare is dramatically cut and she does not have to constantly 
put on and remove two pairs of glasses in order to check a chart or whatever.

JMVHO YMMV

Take care and be safe.

Wayne
M/V Celestial
Albin43 Sundeck 


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