Eyelid Motion Monitor

System Status

By: Alon Berger Maor Itzhak

07.11.2014

1. Glasses Review• Problems Encountered• Consequences

2. Points To Ponder

Outline

Glasses too heavy◦ Problem: Patient is uncomfortable◦ Consequences:

Results are irrelevant (patient not on usual behavior) Glasses too low (signal undetected on low sensors)

◦ Solution: Helmet

Glasses Review

Glasses still bit too low◦ Problem: Magnet passes sensor height◦ Consequence: “Horns”

Glasses Review

Glasses Review

Glasses too low◦ Problem: Magnet passes sensor height◦ Consequence: “Horns”

◦ Solution: Nosepiece adjustment

Glasses Review

Glasses too far◦ Problem: Signal too weak!◦ Consequence: Can’t detect blinks

Glasses Review

Glasses Review

Glasses too far◦ Problem: Signal too weak!◦ Consequence: can’t detect blinks

◦ Solution 1: Temple strengthening Highly unpleasant

◦ Solution 2: Ski strap Great improvement Still uncomfortable in long sessions Hard to calibrate

Glasses Review

Measurements

Glasses Review

Exp 1 Exp 2 Exp 3

Real results 55 134 72

Uppersensor

# 2 69 131 71

# 6 58 136 79

Bottomsensor

# 4 53 121 71

# 8 50 163 63

Sidesensor

# 3 58 124 73

# 5 55 131 72

# 7 95 239 89

Frequency [Hz] 0.09 0.2048 0.1095

New platform, comfortable to the patient is required!

Eye movement vs. Blinks◦ What’s the difference?

Points To Ponder

Partial blinks◦ First results are positive, but were “an accident”◦ Need a volunteer with special abilities!

Points To Ponder

For now, we’re stuck with horns…

With better glasses – the potential is huge!

We’re at home stretch… ◦ Better glasses◦ Bigger database

Points To Ponder