Los Angeles herald., 1910-11-27
WRONG EYE GLASSES
BY DIR. G. G. LOGAN

l can say without fear O. cot o.
versy that it is possible gradually to
accustom the average eye to Almost
any of the strongest slAs-es in tie
trial spectacle case, but to do so wou II
be dong the eye almost ir.eparabls
injury. The easiest thing to make in
this world is a mis- AXE, but | d. not
want mistakes made on my eyes or
on my chi.dren's eyes. Do you? Any
one who reads this article anu who
never has had the eyes examined by
a competent physician max ny a sp--
cialty of the eye should do SO a. once.
Any one having eye trouble should
have their eyes carefully e-.amined at
least once a year and poole past 40
years of age should change Sir glass;
es every two or three years, as the
eyes change very lapidly tor ose
work after that age.
Proper glasses should relieve, not
increase, pain or discomfort in the
eyes. Comparatively few cases Of eye
trouble as they are commonly met with
can be cured by glasses alone.
The eye in it's construction very
closely represents a Photographic cam
era. Impressions of light are re eived
through the pupil corresponding to
the shutter of the came a, fcc- sed on
the retina by the aid or the crystal
line lense Corresponding to tie lease
of the camera), and then trans a tilted
by the optic nerve to the sight cent r
in the brain, forming the completed
photograph.
The normal eye is nearly round. A
near-sighted eye is elongated or egg
shaped. A far-signted eye Is fiatte.. ed
or turnip shaped. An astigmatic eye
only sees objects in one meridian, or
imperfectly. The faculty or pow~r of
the unaided eye to sc objects within
a few inches of the eyes as well as at
a considerable distance is called ac-
commodation.
The relation between TIE uli and
the opticlan should be CORE IL Iondingly
the same as between the physician and
the druggist though many of tie best
oculists look after the grinding of their
lenses personally and deliver their own
glasses, as many physicians firm sh
their own medicines. Almost every
person knows that eye glasses are worn
to enable the wea er to see to be. ter
advantage or to rel-ve nerve strain
many people who think the use Of
glasses is confined to he ping 9 aged
to see to read and the near-sighted
t. see at a greater stance than they
otherwise could. Many who really
need glasses are prevented by false
pride or prejudice; still others are dis
posed to think that they can choo g
their own glasses just as accurately
as an experienced specia ist. It mu
be remembered that the g asses we
can see best with for a period of
five or ten minutes are not the glasses
for use in the majority of cases, and
the ready-made spectacles never fit
perfectly because all eyes are more
or less astigmatic (aatter on one me-
ridian than On the otEe~) and the
glasses should be ground 81 ghtly
thicker in that particu ar meri rilian. 1t
might be the 80 or $50 degree 81 i'd
ian or anywhere between the two.
One of the causes of blindness and
diseased eyes is that so many people
wear glasses too strong, and here is
the reason for it. Too stroag lens s
remove all or a great part of the work
muscles from the eyes. We all know
what the effect would be if tie mus
cles of the leg or arm Should not be
used for any length of time-they
would atrorhy or generate, and 1t is
just so with the accommodation mus
cles of the eye. If they have no work
to perform they become useless. II
they have too much work to do they
become paralyzed or worn out The
object of the specialist is to st ike a
fappy meoium.
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