From the Kitchen Table - R/C REPORT
By Jim Kitchen
These
tired old eyes of mine have tracked R/C model airplanes around the
sky for over twenty years now. And it's nearly sixty years of general
use. Naturally, I want to do everything possible to keep them in good
operating condition for many years to come.
It was an
article by Dr. Charles Lederer M.D. (Opthamologist), "R/C Flying
and Ultraviolet Light" in the April 1988 issue of "R/C
Report" that first alerted me to the potential dangers of ultraviolet
(UV) light rays. UV rays are suspect to causing eye problems such
as cataracts, pterygium (corneal damage), and senile macular degeneration
(retina damage). These eye problems are also associated with the
aging process, but there is evidence that UV's accelerate them and
may also affect their severity. I don't recall reading anything
about UV dangers in model magazines until I read Dr. Lederer's article,
or if I did read something, it didn't register. But this time I
immediately had my prescription sunglasses coated for UV protection,
and have worn coated sunglasses for flying ever since.
I
recently read in columns appearing in the October issue of two different
model magazines (not in "R/C Report") about Zurich USA
sunglasses. In both instances the writers were enthusiastic about
the reduced glare and the enhanced clarity with which objects were
viewed, and the maximum LTV protection afforded by these sun-glasses.
They are wrap around design which keeps the wind from getting in
your eyes while flying a model and standing sideways to the wind.
For example, our winds are usually from the north or south. I take
off into the wind and do most of my flying facing east. The temples
are vented to resist fogging. Zurich's are not available in prescriptions,
but they fit over most regular glasses including mine. I prefer
large lenses for my glasses, so if they fit mine, I am pretty sure
they will fit anybody's.
Zurich's offer a choice of natural gray, rose, or amber base lens
colors. Gray is recommended for all around activities, so this is
the color I chose. There is a mirror finish outer coating to reflect
glare, while the base lens protects your eyes from UV. The outer
coating can be in one of several solid colors, or in a single gradient.
Single gradient lenses have a heavier amount of coating on the top
two thirds with the least amount of coating on the bottom. This
blocks glare in the line of sight, but allows more light through
the bottom for better visibility of instruments, charts, gauges,
and modeling activities such as assembling your model at the flying
site or adjusting the engine before takeoff, while still providing
100% UV protection. The break between heavier and lighter coating
coincides with my bifocals, so I can easily see what I am doing
while working on my model at the field. Most of my flying buddies
are now using some form of wrap around sunglasses. They got them
through the mail or at a trade show. We compared our glasses at
the flying site and mine seem to have a noticeable improvement in
glare reduction.
While working on this column, I went flying at the Woodland Aeromodelers'
flying site near Woodland, CA. A flyer there splashed some fuel
in his eye while trying to start his engine. He rinsed his eye with
water and said it felt better, but decided to visit the hospital
emergency room as a precautionary measure. If he had been wearing
some form of eye protection, it could have saved him a lot of aggravation,
and the cost of a trip to the emergency room.