NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Polarising Filters
From: Ken Muldrew
Date: 2007 Nov 26, 10:21 -0700
From: Ken Muldrew
Date: 2007 Nov 26, 10:21 -0700
On 24 Nov 2007 at 0:29, George Huxtable wrote: > I recall having read, but don't recall where, that simple local heating, > from the Sun image falling on the retina, is a cause of lasting damage to > the retina by short-term ablation. That is, it fries a hole in it. Can > anyone offer more information about that? I have attached a short article from Ophthalmic Physiology & Optics from 2001 in which damage from the sun is discussed. It's not too large at 58k so hopefully this won't be too much of a burden on those who are not interested. The executive summary is that naked eye damage is photochemical, not related to heat denaturation. Ken Muldrew. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~--- The following section of this message contains a file attachment prepared for transmission using the Internet MIME message format. If you are using Pegasus Mail, or any other MIME-compliant system, you should be able to save it or view it from within your mailer. If you cannot, please ask your system administrator for assistance. ---- File information ----------- File: eclipse blindness.pdf Date: 26 Nov 2007, 10:13 Size: 58487 bytes. Type: Unknown