Can the use of a Sextant cause eye damage?

[capriole]

Since they had no sun shades, that is why those pirates wore eye patches.

[AKA-None]

Everyone does know that cameras and phones have it filters right? This I know from astrophotography. You pay extra to change the filter. I have a selection of various filters for use on the telescope

[hodgmo]

As a point of reference, this is the sextant navigation system that was used in lifeboats during WWII:

https://photos.app.goo.gl/ThkGJmn7siAFUJHM8

The kit included a multi-year, condensed almanac, and was geared for noon sights (because they're usually the easiest). Note the simple filter selection (2 ea index and horizon).

It looks like the low-end Davis but is much better built (I have both), and, after getting used to the vernier scale, it works well, especially for sun shots. I've taken dozens of sun sights with it, and no eye problems so far!