Polarized Glasses and Chartpotter

[Eddie]

I need prescription sunglasses to read a chartplotter but have heard that you cannot read the plotter in the cockpit with polarized lenses. The chartplotter is garmin . Any suggestions, color lenses that are better, go non polarized ? How do you handle this? Thanks

[ConradG]

This must have to do with the chart plotter screen being polarized?? There are some high end private jet windows that use two polarized screens for windows-when turned one way they are black when turned right angles, you can see through. Perhaps you can read it when lying down sideways??

[AnchorageGuy]

Eddie, we can't read ours with polarized glasses, so I have a pair of regular prescription sunglasses on the bridge. I find I very seldom use the polarized glasses on the boat any more.

[noelex 77]

It depends on the axis of polarization of the Garmin screen. Most are OK, but not all. If you tilt your head it will solve the problem if the screen is unreadable, but this is not practical long term.
All polarized glasses prescription and non prescription will perform identically, so you can test the screen with a cheap non prescription Polaroid pair.
Polarization is a big help seeing under the surface of the water so it is worth getting if possible.
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