iandol on tue 4 sep 01
Dear John Baymore,
There are a lot of health issues hidden in this discussion. It may not =
be realised but our eyes focus differing spectral wavelengths at =
differing distances. So Infra Red tends to focus inside the layers of =
the retina while Ultraviolet focuses in front of the retina in the =
vitreous humour. So one damages the nerve endings while the other can =
leave scars which persist as "Floaters" which move across one's visula =
field.
Yes. Cove all bases. Wear Welding Goggles. They are not as expensive as =
those fancy Neowhatsit coloured fashion statements.
All the best,
Ivor Lewis, Redhill, South Australia
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