honeywell safety products - addapainclinicmeddevicedepot.com/pdfs/titmusvseyechart.pdf · honeywell...
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1 HSP Lead Team – Jan. 17th, 2011 HONEYWELL - CONFIDENTIAL 1 HONEYWELL - CONFIDENTIAL
Honeywell Safety Products (formerly Sperian)
Titmus VSeries Vision Screeners
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2 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
•Overview
- Introduction
- Importance of Vision Screening
-What is vision screening?
-Titmus instruments evolution
-Titmus VSeries – Features & Benefits
-Family of Titmus VSeries
-Vision Screening Tests
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3 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
• Importance of Vision Screening - To detect conditions that may result in blindness
- Eyes transfer 90% of all information to brain
- Impaired vision can cause learning, emotional and
behavioral problems in children
- Children are often not aware of impairment
- Vision problems affect 1 in 20 preschoolers and 1 in 4
school-age children (Prevent Blindness America, 2000)
- How many of you go for annual eye checks?
- Vision Screening is an Efficient, Practical and
Economical process to detect possible problems
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4 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
•What is Vision Screening?
Some of the major aspects of vision screening are:
- Visual Acuity Sharpness of the eye
- Binocular Vision Both eyes working together
- Depth Perception Distance of objects from one
another in 3D
- Color Perception Ability to differentiate colors
- Muscle Balance Alignment of eyes in
horizontal/vertical plane
also known as PHORIA
- Peripheral Vision Ability to see from “corner of the eye”
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5 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
•What is different from a wallchart?
Wall chart only checks for acuity, what about other
functions:
- Color: obvious reasons
- Depth: try pouring water in a glass with one eye
closed
- Muscle Balance: possible visual fatigue
- Fusion: detect double vision
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6 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
•What is a Vision Screener?
- ONE instrument with a variety of screening tests
- Device with controlled test distance for FAR / NEAR
vision, hence precision and accuracy
- Simple to learn and user-friendly
- Can complete a comprehensive tests in 5 minutes or
less
- Many more tests and better control as compared to a
wall chart
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7 HSP Lead Team – Jan. 17th, 2011 HONEYWELL - CONFIDENTIAL 7 HONEYWELL - CONFIDENTIAL
Titmus Vision Screeners
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8 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
•Evolution, TITMUS Vision Screener
1959
OV7
1985
TII
1994
T2
2006
TITMUSiSeries
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9 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
•Evolution, TITMUS Vision Screener
Titmus VSeries
2010
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10 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
•Features & Benefits - Compact and Portable
Features an in-built handle for ease of transport
Includes a carrying case with wheels
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11 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
•Features & Benefits - Ergonomics
Ensures patient is in a comfortable position for
testing, whether seated or standing – needed for
efficient and accurate testing
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12 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
•Features & Benefits - Membrane Control Panel
Instrument controls located at your fingertips
Ease of placement – helps where space is limited
Indicators for ease of testing
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13 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
•Features & Benefits - Fluorescent Light Source
Improves slide illumination, replicates actual daylight conditions and provides true color testing
Light will give years of extended service (10000 hours)
Membrane Panel indicates when to replace light
- Foam Headrest
Soft headrest to ensure correct head position
Easy to clean
- Head Sensor
Electronic check to ensure correct head position
Patient can’t see tests, if head is incorrectly positioned
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14 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
•Family of instruments – Model comparison
Model Titmus V4 Titmus V2
Membrane Control Panel •
Built-In Membrane Switches •
Electronic Pointing System
Ergonomics (Height Adjustment) • •
New Fluorescent Light Source • •
Portability • •
Soft Foam Headrest • •
Head Positioning Sensor •
Peripheral Vision Testing • •
Test Slide Advance/Reverse Control Panel Manual
Night Vision Testing •
Carrying Case Optional Optional
Standard Accessories • •
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15 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
•Family of instruments – Model comparison
Model Titmus V4 Titmus V2
Suggested Resale Price $3055.00 $2645.00
Product similar to
TitmusiSeries
Titmusi400 Titmusi250
Product similar to Model 2 2a w/perimeter 2s w/perimeter
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16 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
•Why replace your old vision screener?
- Advantages over the earlier Models
- Older units might have faded Test Slides, especially color
test
- Pointing – Object-at-a-Time™, Line-at-a-Time™
- Built-in Portability
- Ergonomics – proper position while testing
- Membrane panel for ease of testing
- Fluorescent Light Source – long life (do not have to
change bulbs often)
- Electronic sensing of correct head position
- Foam Headrest – no more head rest tissues (paper)
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17 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
•Reasons to purchase a vision screener? - Are you doing vision screening? If no, why you should-
vision changes with age
do you know if a person is suited for a job
drivers - test for depth, color, Federal std
computer users - are they being affected
random pick 10 people: @ 3-4 will fail
people don’t get their eyes checked yearly
- If you are screening for vision, but only using a wall chart -
This only checks for acuity, what about other functions:
color: obvious reasons
depth: try pouring water in a glass with one eye closed
muscle balance: possible visual fatigue
fusion: detect double vision
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18 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
•Competitive comparison
Feature Titmus Stereo
Weight 12 lbs 15 lbs
Floor space needed 1.25 sq ft 2 sq ft
Portability Smaller compact shape
makes it very portable,
built-in carrying handle
Larger shape makes it
bulky, in-built carrying
handle
Ergonomics (Height Adjustment) Horizontal to 50+
degrees. Fits both
children & adults
Only a few degrees of
motion. Hence difficult
to test children
Number of tests 16
Same tests can be
used for FAR and
NEAR vision testing
(8 tests x 2)
12
Different tests for FAR
and NEAR vision
Warranty 2 years 1 year
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19 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
•Competitive comparison (continued)
Feature Titmus Stereo
Pointing System Patented electronic
system for line-at-a-
time, object-at-a-time
(Titmus V3 only)
Manual using a
pointer, door needs to
be opened that allows
stray light to enter
Light source True white light source,
hence ideal for color
testing
LED light source,
hence requires color
correction
Head Positioning Sensor Non-contact infra-red
sensor, hence less
chance of failure
Push-button switch,
hence susceptible to
failure
Soft Foam Headrest Provides a comfortable
surface for testing
No such headrest
Power supply In-built into the
instrument
External to the
instrument
Electrical Standards Meets UL, CSA and CE
(most stringent of all)
Meets UL
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20 HSP Lead Team – Jan. 17th, 2011 HONEYWELL - CONFIDENTIAL 20 HONEYWELL - CONFIDENTIAL
Vision Screening Tests
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21 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
• Visual Acuity
• Sharpness of the vision at different
distances
• Most Common Vision Defect
• Near Sightedness is called ‘myopia’ (One
cannot see distant objects sharply)
• Far Sightedness is called ‘hyperopia’ (One
cannot see near objects sharply)
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22 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
• Visual Acuity Test (Adults)
- Using Letters
- Using Landolt rings (Landolt, TNO, G37)
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23 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
• Visual Acuity Test (Children)
- Using Letters, “E” pointing in different directions
- Using Symbols (LEA, Allen Preschool, Michigan
Preschool)
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24 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
• Binocular vision
• Coordinated use of both eyes i.e. ability
of the two eyes to work together to
form a fused image in the brain from
two separate images.
• Defect Causes ‘Double Image’
(Diplopia)
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25 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
Binocular Vision Test
NO binoc
vision, can
see with left
eye only
Possible
esophoria
Possible
exophoria
Normal Vision
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26 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
• Stereo Depth Perception
• Ability to perceive depth in 3D
space i.e. ability of eyes to judge
distances and relationship of
objects in space
• Defect causes misjudgment of
distances and depths
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27 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
• Depth Perception Test (for children)
- Symbols on the slide are easily identified by children
- Consists of a Random Dot Stereogram (RDS)
- First time an RDS has been used inside an instrument
- No special glasses needed to view the slides
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28 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
• Color Perception
• Ability of eyes to judge colors
correctly
• Defect causes confusion in
identifying different colors
• Difficulty to decipher color
coded material
• Genetic and Acquired deficiency
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29 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
• Color Perception Test
- For adults - Ishihara plates with numbers
- For children - Color plates with “E” pointing in different
directions
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30 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
• Muscle Balance or Phoria
• Misalignment of Eye in Horizontal
Plane - Lateral Phoria
• Misalignment of Eye in Vertical
Plane - Vertical Phoria
• Strabismus
• Visual Fatigue
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31 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
• Lateral Phoria Test
- Test muscle balance in
horizontal plane
- Measures in 1 prism diopter
steps
• Vertical Phoria Test
- Test muscle balance in
vertical plane
- Measures in 0.5 prism
diopter steps
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32 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
• Combined Phoria Test
- Measures both lateral &
vertical phoria
- Quick pass/fail
determination
- Ball-in-box
- New improved version for
more information and
simplicity of test
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33 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
55° 70°
85°
0° 30
°
• Peripheral Vision
• The ability to perceive objects
outside of the direct line of
vision or the part of vision that
occurs outside the very center
of gaze
• Also referred as Visual Field
Defect
• Eye can detect motion at a
wide angle, colors at a narrow
angle, and detailed shapes at a
surprisingly narrow angle
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34 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
55°
70°
85°
0° 30
°
• Peripheral Vision
• Ensure fixation using any slide
inside instrument
• Horizontal only, 55 / 70 / 85 /
Nasal
• Total angle tested / eye = Max.
of (55, 70 or 85) + Nasal (45)
• Maximum angle we can test =
85 + 45 = 130 degrees
• Example = Person saw 55 & 70,
did not see 85, also saw nasal
(45), hence total = 70 + 45 = 115
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35 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
• Intermediate / Plus Lenses
- Plus Lens for testing children’s vision:
+1.00, +1.50, +1.75 and +2.25
- Plus Lenses for excessive farsightedness test (one of the
test for amblyopia or lazy eye)
- Intermediate Lens to test vision at following distances
19, 22, 26, 32 and 40 inches (50, 57, 67, 80 and 100 cm)
- Intermediate Lens to test at “actual working distance”
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36 HSP Lead Team – Jan. 17th, 2011 HONEYWELL - CONFIDENTIAL 36 HONEYWELL - CONFIDENTIAL
Maintenance & Service
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37 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
• Product Maintenance
• Recommended Service Schedule - AFTER EACH PATIENT OR AS REQUIRED
Clean/disinfect the headrest foam
Clean the front surface of the unit - DAILY
Inspect Instrument
Clean front test lens - WEEKLY
Clean outside of instrument - MONTHLY
Clean test slides - PARTS TO BE REPLACED
Replace Light Module: Light module is expected to last 5 years or more, based on usage.
No calibration of instrument required
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38 Titmus V4_V2, rev. 050412 HONEYWELL - CONFIDENTIAL
• Warranty
- 2-year manufacturer’s warranty from date of shipping
from our manufacturing facility
• Spare Parts
- Spare parts for current models will be available for a
period of five (5) years from the date of purchase, until
the model is discontinued.
- Spare parts for discontinued models will be available for
a period of five (5) years from the date of discontinuance.
Beyond the five (5) year period, spare parts will be
discontinued or available based on stock.