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    Re: Eyesight dangers using telescopes
    From: Henry Halboth
    Date: 2009 Jun 30, 08:45 -0700

    Hi all,

     

    Ken has asked two relatively simple questions, and has asked for simple yea or nay answers thereto. I can only speak form personal experience, however, and based thereon am pleased to accommodate him.

     

    The answer to both questions is a resounding NO!

     

    This answer is based on some 70 years of peering though sextant telescopes, binoculars, field glasses, and ordinary telescopes to 30 x. I use, and always have used my right eye for the sextant and regular telescopes and, of course, both (I think) for binoculars. For almost 30-years, I performed these activities on a daily basis in the artic, antarctic, and tropics, taking at least 8-sun sights per day (weather permitting) and continuously scanning the horizon with binoculars – during the war years frequently looking directly into the sun in search of attacking aircraft. Today, I suffer no eye problems, and my sight is as good, if not better, than most of my contemporaries (such of them as are left), and both eyes are equally healthy.

     

    Now, by the by, and somewhat off topic, I also smoked cigarettes for over 50-years (I did quit about 20-years ago) and do not now suffer with lung cancer, emphysema, asthma, sob, heart disease, or any combination thereof. I do not, however, advocate smoking, anymore than I do staring at the sun with an unprotected eye.

     

    While in the Confessional, I do admit to an occasional cramping of my right hand and fingers. Could this be occasioned by overuse in gripping the sextant therein? But then again, this also my whip hand, and might well be do to excessive flogging of dead horses.

     

    Has anyone considered heredity (genes) in connection with a predilection to eye damage?

     

    Regards,

     

    Henry

    --- On Tue, 6/30/09, Geoffrey Kolbe <geoffreykolbe@compuserve.com> wrote:


    From: Geoffrey Kolbe <geoffreykolbe@compuserve.com>
    Subject: [NavList 8895] Re: Eyesight dangers using telescopes
    To: NavList@fer3.com
    Date: Tuesday, June 30, 2009, 10:58 AM


    Hello Greg

    My body is a temple. I neither smoke the noxious weed nor do I drink
    the evil brew of the Devil! (Well, not too often...) ;-)

    This is the first "blind spot" from which I have suffered. I hope it
    will be the last. I too am over 50 and I sure don't feel old!
    However, I expect I will have to accept that the warranty has expired
    on most of my body parts and performance will not be as it was...

    Geoffrey

    At 08:10 30/06/2009, you wrote:

    >Geoffrey,
    >
    >Since we are airing out eye stories I will confess that I have had
    >blind spots come and go over the years (not on the fovea). Now that
    >I'm over fifty I can now blame being old as a
    >cause ;-)



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