1 - Bernell

THE AWAYA TEST FOR ANISEIKONIA
The Awaya test for Aniseikonia provides a manual method to detect and calibrate the
Aniseikonic condition. Optic tables must then be consulted in order to specify base curve and
index properly.
This test, developed by Dr Awaya of Japan, is very easy to administer and interpret. The test
uses a very clever direct comparative approach with the patient viewing pairs of adjacent
calibrated half-moon targets - one red and one green. Red/Green separates the right and left
eye images for comparison. Targets are presented in one percent increments from 0 to 24%.
A second set of targets is then presented for verification of the results. The Aniseikonic
condition can be present on any radian, and so the test should at least be administered on the
vertical and horizontal axis. Tilting the head does not invalidate the test results.
Product includes 955R Red/Green Metal Framed Glasses.
Typically patients are experiencing ‘double vision’ or headache when the difference exceeds
5% and they have often been to several eye care professionals before proper diagnosis. Some
reports show as much as 41% of postpseudophakic patients have symptoms attributable to
Aniseikonia. Correction can be achieved by specification of proper base curve and index.
RI1378R $244.95
CERIUM OVERLAYS
VISIONTHERAPY
Many practitioners first screen their patients with an overlay to determine if the cost of
tinted lenses is necessary. Colored overlays have been shown to reduce visual stress and
increase reading fluency in about 20% of school children. In order for susceptible individuals
to obtain an effective filter it is important to sample a large number of colors. The colors
of the Cerium Overlays have been selected using the Intuitive Colorimeter ® to ensure
that, as far as possible, all colors are represented by the overlays and that the transmissions
of them are approximately equal. The overlays consist of a robust transparent sheet
that has a non-reflective surface, but one that allows the print to be clearly seen. The
overlays may be superimposed on each other, but no more than two overlays should be
used any one time due to the increasing density of tint. The edges are rounded for safety.
The overlays are compared in pairs, and the best of each pair retained, the other being
replaced by another overlay. If the patient finds the choice difficult, the choice is repeated
when all overlays have been assessed. Double overlays are used if symptoms remain. It is
recommended that the Wilkins Rate of Reading Test be used to check any increase in
reading speed with the chosen overlay. Individuals who find colored overlays helpful usually
prefer colored lenses.
OVERLAY TESTING KIT: Includes Two A5 sets (20 Overlays), a pack of recording
sheets, examination targets and full instructions for assessment.
CWRT $82.95
COTS $129.95
WILKINS RATE OF READING TEST
Best
Seller
PACK OF 5 (A4) OVERLAYS
(one color, full size)
CPOV $46.95
(Comes as a testing pack with full instructions and test equipment)
The use of color to alleviate perceptual distortion when reading has been available for some years. In England, it used to be
that the College of Optometry recommended an overlay be used successfully for a school term to eliminate any possibility of
placebo effect before referral to optometrists for Colorimetry and Cerium Precision Tinted TM Lenses. It is now accepted that
patients using overlays, tested using the Wilkins Rate of Reading Test and showing a 10% or greater improvement in reading
speed during the test, do not require this period of overlay use before referral. The Wilkins Rate of Reading TM Test is not a measure
of cognitive ability or intelligence but compares the effects of reading simple words with and without overlays. The
patient is simply required to read words aloud while reading time and errors are noted. Reading speed can be measured quickly
and efficiently when randomly ordered common words are read aloud for one minute. The words are high-frequency and
therefore familiar to poor readers. The random word order means that the words cannot be guessed from context but have
to be seen to be read. The text is meaningless so readers are unaware of their errors. The text is small to increase fatigue.
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CERIUM PRECISION TINTED LENSES AND UV BLOCK
CERTINT $42.99
Enable the prescribed color found using the Intuitive Colorimeter ® to be reproduced as a tinted lens. The Precision Tinted Lenses TM are dyed to a degree of
accuracy beyond that normally found in ophthalmic tinting and are issued with a certificate of authenticity to verify this. With this patented system an almost
infinite number of different tints are available. Before 2007, US practioners who had the Intuitive Colorimeter ® had to get their lenses from England. Cerium
has now trained the Bernell staff with a spectrometer and special software which matches the 7 filters in the colorimeter. The lenses that you send will be
Precision Tinted TM to match the hue and saturation found using the Intuitive Colorimeter ® . Regular labs do not have this equipment and can not accurately
replicate colors.
Bernell can make the entire prescription for you or will Precision Tint TM lenses that you supply. We will be happy to supply you with a copy of our lab fees
or quote a price for a specific prescription. We believe our prescription pricing is very competitive. Precision Tinting TM includes a UV blocking agent.
You must have a Colorimeter Test Measurement to receive Precision Tinted TM Lenses. In tests described in references, Overlay results have proven
inaccurate for ordering Precision Tinted TM lenses. For addition information and studies about the Intuitive Colorimeter ® & Overlays, please visit
our website and view the articles located on the bottom of the home page.
FAX ORDERS TO SAVE TIME & MONEY AT (574)259-2102 OR 2103 OR GO TO www.bernell.com