Adaptica 2WIN for Vision Quick Reference Card

CAUTION
this device to sale by or on the order of a physician
US Federal law restricts
read the precautions
Before use section in the 2WIN Operator Manual.
IMPORTANT
binocular refractometer
The 2WIN is a
both eyes at the same time, at a distance of 1 meter.
hand-held battery operated
• It is ,
use
.
• Working in natural binocular conditions the 2WIN allows to evaluate simultaneously
not only refractive errors but also
diameter pupil distance
, and the
the 2 eyes in the most natural environment conditions.
• For both Sph and Cyl, measurement accuracy is ± 0.25 D in the range of ±5 D. The
cylinder axis is calculated between 1° and 180° (step 1°) with precision of ±5°.
For higher refractive errors, the 2WIN displays "high M" (myopia) or "high H"
(hyperopia). In the case the 2WIN displays "high M" or "high H" without displaying
a numerical result (N.A., not accessed measurement), we suggest using a 10 D trial
lens to offset refraction within the measurement range.
2WIN should not be confused with a table top auto refractometer (AR)
• The
ARs are designed to measure refractive errors of one eye at time, in an artificial
condition of far fixation. Please do not consider the 2WIN a small portable auto-
refractometer or two small ARs glued together!
operated in a dim light environment
• It must be
reduce accomodation.
• Please familiarize yourself with the measurement conditions and techniques of the
2WIN in order to exploit its full potential.
• For accurate over-refraction with glasses, please make sure that no stray reflexes
disturb the pupil detection; should such reflexes be present, please slightly tilt the
glasses down.
MEASUREMENT TIPS
Make sure the cylinder notation (minus or plus) is set to your preference.
Pay attention to half-closed eyes, eyelids or eyelashes masking pupils and to Strabismus
inhibiting binocular fixation.
During the measurement mode, please make sure that both eyes appear within the "live"
window; if necessary slightly tilt the 2WIN.
To refract infants, young children and any non-cooperative patients, please turn the
audible and/or the visible fixation targets ON.
Make sure the Reliability Index of the refraction measurement is higher than 5 (max. is 9).
In case of Reliability Index of 5 or less, please repeat the measurement, if possible.
Please remember that free space, non-cyclopegic refraction can vary depending on
several conditions and parameters pertaining to the binocular visual function; in some
specific patients, including accomodating children, the 2WIN measurements may vary.
QUICK REFERENCE CARD
vision analyzer.
and It measures refraction of
very light non-invasive fast
, , , and
gaze direction ocular alignment
,
accomodative balance/unbalance
to ensure sufficient pupil size and
4
CENTER EYES WITHIN THE BLUE RECTANGLE
MODIFY THE DISTANCE TO FOCUS
5
.
easy to
9
pupil
,
ENSURE THAT THE TOP BAR IS
6 6 6
between
PERMANENTLY GREEN
CHECK EXAM RESULTS
6 6 8
9 PRINT/SAVE TO SD MEMORY
EXAM PROCEDURE
.
The patient shall sit comfortably in a suitable exam room; infants should sit in an adult's
lap. A uniform dim light enviroment is necessary. A stable measurement distance of 1
meter is also important.
Turn the 2WIN on by pressing the ON/OFF button for 1 sec. and wait until the
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stand-by screen appears.
Instruct the patient to keep his/her eyes wide open, clear of eyelids or eyelashes,
and to fixate the center of the camera (a small central LED). Hold the 2WIN
2
horizontally with both hands, approximately at the same height of the patient's
eyes, and at a distance of 1 meter.
Press and hold the START button to enter the focusing phase.
3 4
Center the eye/eyes of the patient in the active display within the blue rectangle
(measurement area) - the message "FOCUSING" will appear.
Adjust the distance to focus the image until the top bar is green. When the top bar
5
is PERMANENTLY green release the BUTTON S1/S2 – the message "MEASURING"
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will appear. Stay firmly in the condition in which the upper bar is green until the
message DATA PROCESSING appears on the display.
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After Data Processing measurement results will be displayed.
Adaptica Srl - via San Marco 9/H 35129 - Padova (Italy)
1 2
TURN ON/OFF ASK THE PATIENT TO STARE
3
PUSH AND HOLD TO START EXAMINATION
RELEASE TO START MEASUREMENT
Settings menu navigation
Toggle eye
Toggle attention feature (sound/light)
*Refer to the Operator Manual for all functions
For further information:
ph. +39 049 773968 - fax +39 049 773968
Document Revision 1.2 - 2014
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