Advanced Aviation Technology

www.aatl.net

AAT-EyeCheck

Screening for Drugs

Kim O’Neil

Advanced Aviation Technology Ltd. Tel. +44 1483 811 311

Advanced Aviation Technology

www.aatl.net

Presentation

• What is EyeCheck?

• Application areas

• How does it work?

• Underlying technology

• Screening Methods, Results & Issues

• Benefits

Advanced Aviation Technology

www.aatl.net

What is EyeCheck?

• EyeCheck™ Pupillometer – Analyses Eye Pupil Response– Employing simple medical principles– Straightforward measurement techniques– Rapid, two minute test…...

• Application to:– Measurement of fatigue– Detection of drugs.

Advanced Aviation Technology

www.aatl.net

What is EyeCheck?

Advanced Aviation Technology

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What is EyeCheck?

EyeCheck:– Non-invasive – Non-Gender specific

– Instant results and analysis

– Eliminates privacy issues

– No baseline necessary

– Medically peer reviewed

– Easy-to-use, minimal training required

Advanced Aviation Technology

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Why Test?Drugs:

• Illegal drug use widespread in society

• Prescription drugs a problem too

• Impairment, Accidents, poor decision making

• Disfunctional behaviour, stress, irritation

• Major risk in many responsible professions:– Pilots, ATC, Doctors, Police, Security etc. etc.– Especially when under stress

Advanced Aviation Technology

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Why Test?

Fatigue an interrelated problem too:

• Lack of sleep

• Disrupted sleep patterns

• Stress, overwork, Illness…..

17-19 hrs without sleep - Equivalent to 0.05 BAC

[Williamson AM, FeyerA-M. 2000. “Moderate sleep deprivation produces impairments in cognitive and motor performance equivalent to legally prescribed levels of alcohol intoxication.” Occupational and Environmental Medicine57:649-55.

Dawson, D. and K. Reid. 1997. “Fatigue, Alcohol and Performance Impairment.” Nature388 (July 17): 235.]

Advanced Aviation Technology

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Application Areas

• Measuring impairment

• Impairment and human performance

• Impact of shift patterns (fatigue)

• Safety monitoring of personnel

• Sleep hygiene, stress

• Detection of drugs (pre-screening)

Advanced Aviation Technology

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Application Areas

• Roads, Trains, Boats, Planes• Pilots, cabin crew, maintenance, ATC, drivers• On duty, in transit, on standby• Airlines, airports, rail, maritime, road transport• Police, private security• Public safety, clubs• Research

Advanced Aviation Technology

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How Does it Work?

• Easy to use…

• Simply look into the unit:

• A light flashes, the pupil reacts to stimuli, causing constriction followed by re-dilation.

• Eyecheck measures, records and evaluates this response….. (include subject data, age)

Advanced Aviation Technology

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How Does it Work?

• The eye is allowed to adapt to dark (30 secs)– EyeCheck measures initial pupil diameter

• A brief flash of light:– measures reflex amplitude, rate of constriction

– final minimum pupil diameter, time to min. dia.

• EyeCheck measures real-time eye dynamics– infrared optics, collects IR light scattered by eye– 10-2 mm accuracy, 10 samples per second

Advanced Aviation Technology

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Underlying Technology

IP D S O

C V

M P D

T T M

F P D

P u p ilD ia m .

T im e

Advanced Aviation Technology

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Underlying Technology

• Able to take other measurements:– “Fatigue waves”

– Oscillation of the pupil over time

– Detailed performance of pupil over time

• Supports studies of human performance– Impact of fatigue/narcotics on performance

– Baseline task performance against fatigue/drugs

– Sleep hygiene

Advanced Aviation Technology

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Normal Response

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Benzodiazipine (Valium)

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Barbiturate

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Narcotic Analgesic (Codeine)

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Cannabis

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Metamphetamine

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Cocaine

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Inhalant

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Methods, Results, Issues

• Simple to apply, reliable and accurate– based on solid medical principles & practical use– well documented literature available

• Not recommended for:– under 16’s, over 50’s– pregnant women– under medication– recent eye surgery

Advanced Aviation Technology

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Benefits

• Lightweight, portable, user friendly

• Non-invasive

• Can sample large numbers quickly

• Records & analyses subject data, results

• S/W analysis programs supplied

• Adaptable for many purposes, environments

• “Breathalyzer” for drug impairment

Advanced Aviation Technology

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Summary

• Easy to Use, Portable, Minimal Training

• Rapid, Accurate, Reliable, Adaptable

• Rapid pre-screen for all narcotics

• Whole workforce testing possible

• Performance improvement

• Fitness-for-duty testing

Advanced Aviation Technology

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Benefits of Screening

• Enhanced operating environment

• Improved reliability, performance, productivity

• Reduces incidents, accidents, risk

• Reduces loss, reduces costs

• Improves morale

• Strong deterrence for substance abuse

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The End!

Thank You for Listening!

Kim O’Neil

Advanced Aviation Technology Ltd.Tel. +44 1483 811 311