EyeCheck - PowerPoint PPT Presentation

Loading...

PPT – EyeCheck PowerPoint presentation | free to download - id: 682a5e-YWYwN



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

EyeCheck

Description:

SELECTING A SCREENING TOOL What criteria should be taken into consideration when selecting a ... Under Ground Metro Spain ... Law Enforcement, Aviation, ... – PowerPoint PPT presentation

Number of Views:2
Avg rating:3.0/5.0
Slides: 46
Provided by: FreeDownloadPowerPoi
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: EyeCheck


1
EyeCheck Pupillometery WELCOME PRESENTED TO
AngloGold Ashanti (Pty) Ltd
  • Presented by Imelda Neate
  • June 17th, 2009

2
COMPANY INTRODUCTION
  • Africa DTA (Pty) Ltd
  • Australia DTA (Pty) Ltd
  • New Zealand DTP (Pty) Ltd
  • Europe EyeCheck Europe

3
PRODUCTS AND SERVICES
  • Diagnostic testing equipment
  • In-vitro test kits (on-site)
  • Substance of Abuse Tests
  • Cardiac Markers
  • Infectious Disease tests
  • Tumour Marker Tests
  • Devices
  • EyeCheck
  • Fit for Duty programs
  • Fatigue management
  • Substance of Abuse

4
PRODUCTS AND SERVICES II
  • Testing Service
  • On-site testing service using qualified Testing
    Officers
  • Laboratory confirmation testing
  • Legal services
  • Workplace policy together with Deloitte legal
  • Training courses
  • Testing Officer
  • Education and awareness

5
WHAT IS PUPILLOMETERY?
  • Imaging - relevant
  • Scattered light absolute
  • The reaction or reflex of the human pupil
  • to light and its characteristics provides
  • invaluable information and insight to the
  • brain sensory and motor function.

Pupillometry is the measuring of pupil dynamics
by means of a light
6
PUPIL PHYSIOLOGY
  • Impairment is controlled by the Central Nervous
    System (CNS)

The parasympathetic nervous system Relaxed slows
down the electrical system of the body
The sympathetic nervous system speeds up the
electrical system of the body
The two systems working together keeps the body
in balance
7
PUPIL REACTION
  • Depending on the strength of the light source,
    the pupil contracts and dilates.

8
PUPILLOMETERY
PUPIL CARD Police officers who are highly
trained in detecting and recognizing impairment
caused by substances, examines arrestees pupils
for size and response patterns.
GENERAL MEDICAL PRACTICE Pen lights are usually
used on pupils in medical offices to assess CNS
function for response and size patterns.
9
THE PUPIL CARD
10
PUPIL SIZE CHANGE
  • Is there a difference between pupil size change?

Less Response !
11
SELECTING A SCREENING TOOL
  • What criteria should be taken into consideration
    when selecting a screening tool?

12
SELECTION CRITERIA
  • High sensitivity and specificity
  • Strong positive and negative predictive values
  • Medically accepted practice
  • Simple and practical to use
  • Low unit cost
  • Capacity to detect impairment

13
CURRENT AVAILABLE TESTING METHODS
  • Measurement of signs using DRE-type protocols
  • Saliva testing
  • Urine testing
  • Blood testing
  • Observation of general signs of impairment

14
CONS OF CURRENT TESTING METHOFS
  • Expense
  • Time consuming
  • Invasive
  • Body Fluid exposure
  • Tests are limited by cut off levels
  • In some case impairment not detected

15
THE EyeCheck PUPILLOMETER
  • MCJ Inc. The USA

16
THE EyeCheck PUPILLOMETER II
  • Optical instrument that measures absolute pupil
    dynamics by a light stimulus
  • Hand held, weighing 1.1 kgs
  • Software driven from a lap top or tower
  • Screens for human impairment
  • Pass/Fail indicator

17
INPUT PRINCIPLE
  • An optical beam is input into the eye
  • The eye focuses the beam onto the retina where it
    is scattered

Pupil
Retina
Input IR Beam
Scattered Beam
Output collimated beam
18
INPUT PRINCIPLE II
  • Some of the scattered light returns from the eye
    in an optical beam
  • The optical power is measured over a period of
    time

Pupil
Retina
Input IR Beam
Scattered Beam
Output collimated beam
19
INPUT PRINCIPLE III
  • The optical power, measured over a period of
    time, provides the measurements relating to
    pupillary dynamics

Pupil
Retina
Input IR Beam
Scattered Beam
Output collimated beam
20
EyeCheck TESTING PROCEDURE
  • EyeCheck determines alignment of the test
    subjects pupil looking at the target
  • 30 second dark adaptation
  • A flash of light (100 milliseconds) occurs
    causing the pupil to respond
  • EyeCheck scans and measures the response for
    three (3) seconds
  • Only one scan is taken
  • Results are instant

21
TEST PROCEDURE - OPTICAL PATTERN
The user is instructed to focus on the cross in
the middle whilst still being able to see the
complete circle eye alignment the user can
blink
22
TEST PROCEDURE DARK ADAPTION
23
TEST PROCEDURE DO NOT BLINK
The user will see a small short flash of light
appear
24
TEST PROCEDURE USER BLINK
Within a few seconds, the user will be able to
blink again
25
TEST PROCEDURE - SCAN RESULTS
26
TEST PROCEDURE PASS / FAIL RESULT
27
CURRENT TESTING SOFTWARE AVAILABLE
  • Substances
  • Alcohol and drugs including narcotics
  • Fatigue
  • Bio-Chemicals
  • Diabetes
  • Deception

28
SOFTWARE BEING DEVELOPED
  • HIV
  • Malaria
  • Dengue Fever
  • Chikungunya Fever
  • Alzheimers

29
WORKING DEFINITION OF DRUGS
  • Any substance which, when taken into the human
    body, can impair the ability of the person to
    operate a motor vehicle or function properly.

Source US National Highway Transportation Safety
Administration
30
NORMAL RESPONSE CURVE
31
RESPONSE CURVE BAC 0.10
32
RESPONSE CURVE - BENZODIAZEPINES
Such as Valium
33
RESPONSE CURVE - MARIJUANA
34
RESPONSE CURVE NARCOTIC ANALGESICS
35
DEFINITION OF FATIGUE
  • Fatigue
  • A condition characterized by a lessened capacity
    for work and reduced efficiency of
    accomplishment. Fatigue can be acute and come on
    suddenly or chronic and persist.

36
FATIGUE AND SUBSTANCES
  • Fatigue sufferers are susceptible to increase
    their intake of
  • Alcohol
  • Drugs
  • Medication (cross counter and prescribed)
  • Leads to further stresses on the body, increases
    the fatigue levels and can also lead to substance
    dependence (addiction)

37
MANAGING FATIGUE IN THE WORKPLACE
  • Management program
  • Testing
  • Monitoring

38
MANAGING AND MONITORING
  • Fatigue Management program
  • Continues monitoring
  • Testing
  • Adjusting

39
MEXICO SUCCESS GRUPO TRANSPAIS
  • Tampico Monterrey Tampico. (1042 km. Round
    Trip)
  • Start on September 9th.
  • Total Drivers Tested 159.
  • Total Kms. drived 1,012,122

FATIGUED
FATIGUED
FATIGUED
Drivers Tested 58 Kms drived 333,740
Drivers Tested 55 Kms drived 340,282
Drivers Tested 46 Kms drived 338,100
40
MEXICO SUCCESS GRUPO TRANSPAIS II
  • Tampico Reynosa Tampico. (1012 Kms. Round
    Trip)
  • Start on Octuber 20th
  • Total Drivers Tested 213
  • Total Kms. drived 1,357,410

Drivers Tested 72 Kms drived 452,767
Drivers Tested 76 Kms drived 460,719
Drivers Tested 65 Kms drived 443,924
41
MEXICO SUCCESS GRUPO TRANSPAIS III
  • Tampico Matamoros Tampico. (1000 Kms. Round
    Trip)
  • Start on Octuber 20th
  • Total Drivers Tested 246
  • Total Kms. drived 1,147,580

FATIGUED
FATIGUED
FATIGUED
Drivers Tested 107 Kms drived 388,570
Drivers Tested 63 Kms drived 388,080
Drivers Tested 76 Kms drived 370,930
42
SOME OF EyeCheck END USERS
  • USA
  • Law Enforcement,
  • Probation,
  • Prisons,
  • Industry
  • Australia..
  • Law Enforcement,
  • Mines,
  • Sugar Industry
  • Mexico..
  • Transportation
  • Denmark
  • Military
  • United Kingdom..
  • Under Ground Metro
  • Spain...
  • Law Enforcement,
  • Aviation,
  • Drug Rehab.

43
STUDIES - Illinois State Police Study December
2003 CONCLUSION
  • EyeCheck? Pupillometry can measure a
    physiological sign of impairment. It will not
    determine if a person was impaired several days
    ago and now has recovered to normal. Conversely,
    the use of urine tests may indicate the presence
    of a drug or substance, but not impairment at
    that time.
  • EyeCheck? Pupillometry has demonstrated its
    usefulness as a tool in screening for impairment
    . Overall, it appears to be a valid and cost
    effective tool for its intended purpose . It
    requires minimal training to operate, is
    portable, and is adaptable to a variety of
    testing and screening programs.
  • Dr. Jack Richman, Board member IACP, TAP

44
FURTHER STUDIES AND REPORTS
  • Refer to handouts

45
THANK YOU
  • www.eyecheck.co.za
  • www.drugtesting.co.za
About PowerShow.com