Stereoscopic
Eye Exercise
a.)
Two pennies are placed upon a table top at the individual's normal
reading distance and slightly toward the non-dominant eye side.
Initially, the two pennies (heads up) are placed about one inch
(2.5 cm) or less apart.
The index finger
is then placed centrally upon an imaginary bottom line between
the
two pennies. The finger nail should always be up to prevent
arc effect. A small black dot is marked onto the tip of the
finger
nail. While looking at the black dot, the finger is slowly moved
in a straight line toward the nose tip until three pennies form
(Figure 2).
b.) After establishing
skillful ease in the formation of three fused pennies, the finger
is slowly drawn away so that the three pennies are held fused without
use of the index finger. Initially, the three fused pennies may
be held for only a brief moment. After a short practice period,
they are readily held as long as desired. Although a variable for
each, the three pennies generally form near 4-6 inches (10-15
cm)
from the table top.
Those experiencing
difficulty forming the third penny, when the two pennies are too
close together, may easily correct this problem by allowing these
individuals to form the third penny when the two pennies are at
a comforable distance apart. The pennies width is then gradually
narrowed before attempting the later required widest penny width
position.
c.) After establishing
facility with stereoscopic fusion, each penny is scanned and
pointed
to individually without loss of the three fused pennies. Scanning
is then progressed to pointing beneath each of the three pennies,
as they form upon the table top.
d.) The distance
between the pennies is gradually widened to slightly exceed
the
distance of a newspaper column, magazine column, about 3 inches
(8 cm), or the width of four fingers.
The finger is
held nail upward in order to produce a straight line movement toward
the tip of the nose. Holding the finger with the fingernail downward
tends to produce an arc and penny fusion is more difficult. An occasional
individual will form the third fused penny outside of the two original
pennies. However, this does not appear to distract from the fusion
exercise and stereoscopic reading may be carried out as scheduled.
The two pennies are then gradually widened to about the width of
a newspaper column. Holding the finger straight downward, rather
than flat, produces a gun barrel effect and stereoscopic difficulty
with forming the third penny.
After easily
forming the three pennies with use of the finger, they must now
be held with the finger retracted. Each of the three formed pennies,
with finger retracted, is pointed at with a finger placed on the
table top. This produces a scanning exercise while pointing to each
of the three formed pennies. Scanning with pointing should be easily
held for a minimum of four or five scanning counts of 1,2,3,1,2,3
etc...
e.) Four Penny
Diamond. Only after the two pennies are fused into three at
newspaper
column width are four pennies utilized. The four pennies exercise
is utilized as a check on the ability to perform three penny
stereopsis.
Since there is no way to ensure formation of the three pennies,
the four pennies are used for confirmation. With a little experience,
it is possible to observe those forming the three pennies and recognize
failure to form the third penny. But, use of the four pennies
readily
demonstrates this stereoscopic ability and reading is only started
following its testing use.
Four pennies
are laid upon the table top in a diamond formation (Figure
3). The finger is placed at the bottom edge of the central,
horizontal, two pennies. These two pennies are now stereoscopically
made into three. A simple question is asked. "How many pennies
are there at the top and bottom and how may are there altogether?"
This should prompt the answer of two at the top and two on the
bottom, as well as a total of seven (Figure
4).
An occasional individual will relate that only one penny is seen
at the top or bottom. They are either incapable of three penny
fusion
or penny alignment is not a close diamond formation. Too great
a distance between the four pennies allows for fusion as three
along the sides. They may see a total of seven,
however. The four penny diamond is a simple check on the actual
formation
of
the three pennies from two. The seven formed pennies can not be
accomplished without formation of the three central pennies. A
rare occurrence is the individual that forms only three vertical
pennies
because of mental suppression.
Often access
to two pennies is not possible while others feel that the use
of
two pennies is demeaning or proclaims inferiority to surrounding
peers. Because of personal feelings or penny inaccessibility,
the
use of two fingers is a suggested alternative. The second and fifth
fingers are extended while the third and fourth fingers are
bent
under the palm. Three finger nails are then formed from the second
and fifth fingers. These three formed fingernails may then be
surreptitiously
scanned similar to the pennies.
Simply, two
pennies are placed about one inch (2.5 cm) apart and slightly
toward
the non-dominant eye side. The index finger is placed between the
pennies on an imaginary line connecting the bottom edge of the
two
pennies. A black dot is placed at the tip of the fingernail. This
finger is slowly moved upward in a straight line toward the
tip of
the nose until three pennies form. The finger is removed and the
three pennies are scanned and counted back and forth on the
table
top beneath, the pennies.
| Stereoscopic
Eye Exercise | Figure 1 | Figure
2 | Figure 3 | Figure
4 | Reading Method |
|