Introduction
The SureSight™
Vision Screener is a child friendly instrument that automatically
screens a child in less than 10 seconds. The SureSight Vision Screener
can accurately detect refractive errors using a quick, non-invasive
technology. The screening is objective, easy to administer and eliminates
the need for the child to respond. The Welch Allyn SureSight operates
by pressing a labeled button on the unit and lining up the hand
held device 14" away from the patient's eye. The instrument
is lightweight, portable and can be used on everyone from infants
to hard to test adults.
Product
Overview and Description
The Welch Allyn SureSight™
Vision Screener is a child-friendly instrument that automatically
screens vision in just seconds, addressing an eye chart's compliance
problems and making screening of young children easier for both
healthcare professionals and patients.
Welch
Allyn developed a new vision testing technology for this product
to accurately detect refractive error faster, easier, and less intrusively.
The technology is ideally suited to detect key risk factors for
amblyopia, a marked loss of visual acuity in one eye that affects
up to five percent of the U.S. population. In addition, it can be
used by school nurses and eye care practitioners to more quickly
and easily perform an objective vision screening of refraction (determination
of the eye's optical properties), for all age groups.
Research indicates that two-thirds of cases of amblyopia, or "lazy
eye," are associated with refractive error. Current testing
methods, such as eye charts and photoscreeners, can be difficult
to perform on young children. In addition, only 21 percent of U.S.
children have their vision screened before kindergarten. Unfortunately,
72 percent of children with the disorder go undetected until after
the window for effective treatment expires. However, if treatment
begins during the window -- before school age -- vision can almost
always be preserved.
Pediatricians and family physicians typically use Snellen visual
acuity (eye) charts to screen for the presence of refractive risk
factors. However, studies have shown that only 25 percent of 3 year
olds and 50 percent of 4 year olds can successfully complete this
test. In addition, performing this test on pre-school children can
take an average of five minutes or more.
Welch Allyn's method operates by pressing a button and lining up
the hand-held device 14 inches away from the patient's eye -- as
opposed to the two or fewer inches needed by autorefractors (devices
used by eye care practitioners to measure refractive error). The
new instrument has visual and audio cues that engage the child's
attention automatically -- eliminating the need for the child to
respond. The portable unit requires little time to learn, and nurses,
technicians, and other trained personnel can administer tests. The
lightweight device can be used for vision screening or objective
refraction on everyone from infants to senior citizens.
Product
Use and Procedure
 |
Set-Up: |
| Push
any button to turn the unit on |
| Position
the patient so that the test can be conducted level with the
patient's eyes. |
| Choose
the calibration mode using the child / adult button (child
mode for 6 years and under).
Hold the button until you hear a double beep and see the desired
icon on the LCD. |
| Explain
the test procedure to the patient: "Now I will check
your eyes. You will see a red light in the middle of green
blinking lights". |
| Position
yourself at eye level and square with the face of the patient. |
|
Test
Procedure: |
| Push
the GO button on the unit. |
| Watch
that the patient is fixated correctly throughout the test. |
| Position
the unit at the correct distance from the patient:
|
 |
When
the unit is too far away, you will hear slow, low-pitched
beeps. |
|
Slowly
move closer. At the correct 14" distance you will hear
a steady low tone. |
|
When
the unit is too close, you will hear quick, high-pitched beeps. |
|
The
crosshair will flash in synch with the tones. |
| Look
through the peephole and align the crosshair on the pupil
of the patient's right eye. While the unit is acquiring data,
you will hear a very high-pitched chirping sound over the
steady low tone. (If you have a steady tone without acquiring
data chirps, ask the patient if they see the red light and
scan around the pupil in a spiral until chirps begin then
hold at that location). |
| When
the test on the right eye is complete, you will hear a "tah dah"
sound. |
| Without
changing positions, or pushing any buttons, rotate the unit
to the left eye and align the crosshair over the pupil. Repeat
test on this eye. |
| At the
end of the test you will hear the "tah dah" sound again. |
| If
the unit has not gathered enough good readings from either
eye, you will hear 5 tones when the test stops. At that time
retest that eye. |
| To
stop a test at any time hold down any button until you hear
the 5 tones sound. |
|
Hints
for Successful Testing |
| Screen
in a dimly lit room. If it is too bright the pupils cannot
dilate properly, too dark and it is difficult to see. |
| Make
sure the unit is straight and level with the patient. When
testing the second eye, simply rotate the unit over since
it is already at the proper angle and distance. |
| Remind
the patient to look at the red light and monitor the fixation.
|
| Make
sure the patient's eyelids are not occluding the pupil. |
| A charged
unit can test patients for about 3 hours of continuous use. |
| To charge
the unit, place firmly into the stand. |
|
What
do those buttons do? |
 |
|
Clear
& child/adult mode |
|
"GO"
|
Unit
on — start test
Unit off — recall readings
|
|
L/R
toggle & print |
Re-test
selected eye
Print (hold button, point at printer throughout)
|
Features
and Benefits
|
No
Patient Response
- Minimal cooperation is required, making it ideal for use
with young children, special needs populations and when there
is a language barrier.
Child friendly - The SureSight's lights and sounds
engage the child's attention.
Objective - The SureSight does not rely on the
child's response. The person performing the screening does
not have to interpret a pass/fail.
Complete, precise refractive information - The
unit automatically screens common vision problems, including
near and farsightedness (myopia/hyperopia), astigmatism, and
anisometropia (unequal power between the two eyes).
Compact and portable - The unit is hand-held and
operates for three continuous hours of testing. The battery-operated
printer enables you to print out your screening results anywhere,
anytime.
Comfortable, ergonomic design - The unit weighs
two pounds and features an ergonomic grip and replaceable,
self-adjusting hand strap that accommodates all hand sizes.
Rugged construction - The SureSight features optics
and electronics that are shock mounted inside housing to protect
the unit. The sealed unit helps keep out dirt.
Screen any age - SureSight screens babies, children
and adults. You can test patients while they're wearing glasses
or contact lenses - testing for symptoms caused by the need
for a new optical prescription.
Affordable - After investing in the SureSight,
there is no recurring charge per use. |
Frequently
Asked Questions
| Q: |
During
vision screenings, I have to screen around 60 students in
a two-day period. Some of these students are difficult to
test and the screenings are very time consuming. How can the
SureSight save me time in my busy day? |
| A: |
The average
time it takes to screen a patient with the SureSight is 30
seconds. The average time it takes to screen the same student
with an eye chart is 5 minutes or more. This represents a
time savings of 4 ½ hours to screen your 60 students
over the two days. If you screen 200 patients you could save
15 hours!
|
| Q: |
What
do the S, C and D stand for on the LCD panel during a screening? |
| A: |
S is the
sphere, or power of the eye measured in diopters. Negative
numbers indicate myopia (near sightedness); positive numbers
indicate hyperopia (far sightedness). C is the cylinder, a
measure of astigmatism, or irregular focus of the eye. D is
the difference in mean spherical power between the two eyes.
|
| Q: |
Where
is there an on / off button? |
| A: |
You can
press any button to turn the unit on, and the unit automatically
turns off after 2-1/2 minutes being unused. If you desire,
you can turn the unit off by momentarily depressing all 3
buttons at once.
|
| Q: |
Is
this unit the same as an autorefractor? |
| A: |
No. There
is another unit that is called the SureSight Autorefractor,
but this unit is the SureSight Vision Screener. The autorefractor
model is available through exclusive ophthalmic distribution
and gives more comprehensive, diagnostic results. These are
necessary for eye care practitioners who are prescribing corrective
glasses or contact lenses.
|
| Q: |
The
low battery indicator popped up on my unit, how much time
do I have left on my charge? |
| A: |
This indicates
you have 15 minutes of usage remaining before your unit needs
to be charged.
|
| Q: |
Does
the unit need to be calibrated? |
| A: |
Yes. Welch
Allyn recommends calibrating the unit every 18 months. The
CAL symbol will display on the unit and printout when it is
ready to be calibrated. The unit will still be usable with
the CAL symbol displayed.
|
| Q: |
How
do I get my unit calibrated? |
| A: |
Contact
the Welch Allyn Technical Service Department to schedule your
calibration. Their phone number is (800) 561-8797.
|
| Q: |
Does
this unit test for color discrimination? |
| A: |
No. Given
the benefits of the SureSight vision screener for quickly
and accurately screening for refraction, we recommend purchasing
a color test if you are screening for color discrimination.
Click here to review information on the Goodlite Color Test.
|
| Q: |
How
old does a child have to be before being able to get screened
with the SureSight? |
| A: |
We recommend
6 months through adulthood. Before 6 months the babies eyes
are not developed enough to give an accurate screening.
|
| Q: |
Does
the SureSight check for Strabismus or assess the muscles? |
| A: |
No. The
SureSight is intended for use as a refraction screener on
preschoolers, special needs and language barrier patients,
saving time and improving accuracy for that portion of the
vision screening.
|
| Q: |
How
do I clean my SureSight Vision Screener? |
| A: |
All windows
on the unit can be cleaned with a soft cloth moistened with
70% Isopropyl Alcohol or any standard window cleaner. The
housing, grip, hand strap and stand may be cleaned with either
a dry soft cloth, or a soft cloth moistened with any of the
following: 10% bleach solution, soapy water, 70% Isopropyl
Alcohol, alcohol pads or standard window cleaner.
|
| Q: |
Where
do I find the serial number of my SureSight Vision Screener? |
| A: |
The serial
number is located on a label inside the battery door.
|
| Q: |
How
many printouts are the batteries good for? |
| A: |
Printer
batteries will print approximately 500 tests. At that time
you will need to replace your batteries.
|
| Q: |
How
many tests can I print on a printer roll of paper? |
| A: |
You can
print approximately 500 tests on one printer roll.
|
| Q: |
Where
do I buy accessories and printer paper for my SureSight? |
| A: |
You can
order them from School Health Corporation on line or call
their toll free number.
|
| Q: |
I
need to test hundreds of children at one time. What can I
do? |
| A: |
An external
battery charger can be purchased and is capable of charging
2 batteries completely in 2 hours.
|
| Q: |
Is
the SureSight a photoscreener? |
| A: |
No. The
SureSight vision screener is a screening autorefractor, a
different technology than that used in photoscreeners. Before
the development of the SureSight, autorefractors were only
available to eye care practitioners (at far higher price).
|
Technical
Specifications
| Technology:
|
Welch
Allyn proprietary autorefractor hardware/algorithm utilizing
Hartmann Shack wavefront analysis |
| Working
distance: |
14
inches (35 cm.) |
| Distance
detection: |
Automatic,
with audible and visual cues |
| Eyepiece: |
Illuminated
target for easy aiming |
| Data
acquisition time: |
2.4s/eye |
| Reliability
measure: |
Indicates
number of, and variation among measurements for the given
eye |
| Battery
voltage: |
7.2v
nominal (Lithium Ion) |
| Battery
life: |
More
than 3 hours of continuous usage |
| Low-Battery
warning: |
Indicates
10 - 15 minutes usage remains |
| Interfaces: |
Remote
infrared link to thermal printer.RS-232 interface for IBM
compatible PC for future software upgrades/data transfer to
electronic medical records. |
| Stand: |
Compact
charger and SureSight storage |
| Weight: |
Approximately
2.0 lbs. (0.9 Kg.) |
| Dimensions: |
6.5" x 7.75" x 2" |
| Class
II equipment: |
Continuous
operation. |
| Transport/Storage: |
-20°C~49°C,
10%~100% R.H. Max, 500hPa - 1060hPa Altitude |
| Operating: |
10°C~30°C,
30%~75% R.H. Max, 500hPa - 1060hPa Altitude |
| Measurement
Range: |
Sphere:
+6 to -4½ Diopters |
| Cylinder:
|
±
3 Diopters |
| Laser
safety: |
Class
1 Laser Product per CDRH 21CFR 1040.10 and 1040.11, IEC 825-1
(1996) pending and EN60825-1 (1996) pending |
| Office
illumination: |
Not
for use in direct sunlight. Indoor operation only. |
| Materials: |
This
product is latex free. |
Articles
/ Manual
Click
here to read the Contemporary Pediatrics article "Why Early Vision
Screening Matters."
The following are four different clinical studies published in the Investigative
Ophthalmology and Vision Science Journal. To review the below titles, visit
the website of the Association for Research in Vision and Opthamology at
ARVO.org.
Bobier, W.R., etal: Reducing differences between
wet and dry refractions of pre-school children. [ARVO Abstract]. Invest
Ophthalmol Vis Sci. 2001;42(4) Abstract nr 2110
Adams, R.J. etal: Noncycloplegic Autorefraction
in Infants and Young Children [ARVO Abstract]. Invest Ophthalmol Vis Sci.
2001;42(4) Abstract nr 2108
Harvey E.M, Miller J.M., Dobson, V.. Preschool
Vision Screening with a New Portable Vision Screener: Effectiveness in a
Population with a High Prevalence of Astigmatism [ARVO Abstract]. Invest
Ophthalmol Vis Sci. 2000;41(4) Abstract nr 1594.
Atodaria N.J., Harvey E.M., Miller J.M., Dobson V..
Preschool Vision Screening Using a New Photoscreener: Effectiveness in a
Population with a High Prevalence of Astigmatism [ARVO Abstract]. Invest
Ophthalmol Vis Sci. 2000;41(4) Abstract nr 1593.
To review the SureSight user manual click
here.
Click HERE
to view the results of Phase 1 of the VIP study as printed by the American
Academy of Ophthalmology. The article is titled, "Comparison of Preschool
Vision Screening Tests as Administered by liscened Eye Care Professionals
in the Vision in Preschoolers (VIP) Study".
Adobe Acrobat is required to view or print the SureSight
User Manual click the icon below to download a free copy.
Sales
Brochure / Demo Disk
If you would like to receive a SureSight demonstration video, in-office
demonstration or sales brochure, please email
us.
Warranty
|
SureSight
Instrument
Welch Allyn, Inc. warrants the SureSight instrument to be
free of original defects inmaterial and workmanship and to
perform in accordance with manufacturer's specifications for
a period of one year from the date of purchase. If this instrument
or any other component thereof is found to be defective or
at variance from the manufacturer's specifications during
the warranty period, Welch Allyn will repair, replace, or
recalibrate the instrument or component(s) at no cost to the
purchaser. This warranty only applies to instruments purchased
new from Welch Allyn or its authorized distributors or representatives.
The purchaser must return the instrument directly to Welch
Allyn or an authorized SureSight distributor or representative
and bear the cost of shipping. This warranty does not cover
breakage or failure due to tampering, misuse, neglect, accidents,
modification or shipping, and is void if the instrument is
not used in accordance with manufacturer's recommendations
or if repaired or serviced by other than Welch Allyn or a
Welch Allyn authorized representative.
NOTE: Return of the instrument registration card is required
for proof of purchase and
warranty validation, and to automatically receive free software
upgrades that may occur during the warranty period.
Service
and Warranty
Please return instruments requiring service to:
WelchAllyn
Technical Service Department
Welch Allyn, Inc.
4341 State Street Road
Skaneateles Falls, NY 13153-0220 In Canada:
Telephone: 1-800-535-6663 Telephone: 1-800-561-8797
Fax: 315-685-4653 (Technical Services) Fax: 905-890-0008
SureSight Rechargeable Battery
Welch Allyn Lithium Ion batteries are warranted by Welch Allyn
for two years from date
of manufacturing (when used in Welch Allyn instruments only).
Defective batteries will be replaced on a pro rata basis should
failure occur prior to expiration date on battery.
|
Reimbursement
Reimbursement for
use of the SureSight, when paid, averages $15 per screening under code 92015
(determination of refractive state). Some SureSight users instead use code
99173 (screening test of visual acuity, quantitative, bilateral). Welch
Allyn has available a reimbursement support service for customers who purchase
the SureSight Vision Screener. If you would like to place an order, or already
have purchased a SureSight and need additional reimbursement information
email or call School Health Corporation.
For assistance in determining payer-specific coverage, coding or payment
levels for the Welch Allyn SureSight™ Vision Screener, please call
the Welch Allyn Reimbursement Support Line at 1.800.946.1212.
For additional Reimbursement
info and a PDF you can share with others, click here: http://www.welchallyn.com/documents/Support/SM2614%20Rev%20C%20(MC4124)%20SureSight%20VS%20SS.pdf
Product
Ordering Information
| SH
Catalog # |
Product
Name |
| 52316 |
SureSight
Vision Screener |
|
