Number needed depends on the experiment
TOP APPLICATION AREAS
RESPONDENTS NEEDED
$99 to $50,000could have one!GREENLANDeveryone in That means
eye trackers in the world45,000There are at least
Medium0.5 degree
High-end0.1 degree
Low-end1.0 degree
MEASUREMENT PRECISION
Saccadicmovements
usually span 7 to 9 characters
along the line of text
Typically up to 11 inches in each direction for eye trackers to pick
up the eyes
≈ 95% of people can be tracked
with an eye tracker
MILLISECONDS 100-300
TYPICAL FIXATION DURATION LASTS
MOBILE
A C L O S E R
2 MILLION 107 MILLION 17 TIMES
A T E Y E T R A C K I N G
Eyes come in all shapes and sizes, but size does not matter
in eye tracking
RESOLUTIONThe eye has a resolution of 576 megapixels.Equivalent to 72x iPhone 6 resolution.
The world of eye tracking is fascinating and filled with advanced research, stunning discoveries and
the wonders of the human eye.
working parts light sensitive cells
Contains On average you blink
per minute
Composed of over
TheAverage Pupil is
2-4 MMin bright light to
4-8 MMin the dark
TheAverage Eye is.9 inches tall1 inch deep1 inch wide
L KSIZE DOESN’T MATTER!
Near-infrared light directed
towards pupil
Reflections in the cornea tracked by
camera
Know what people are looking at
(probably cats)
TYPES OF HARDWARE
1. 2. 3.
SACCADIC MOVEMENTS HEAD MOVEMENT TRACKABILITY
REMOTE
SAMPLINGRATE
Typical value range:
30-60Hz
Special researchequipment:
120-1200+ Hz
ACADEMIC & SCIENTIFIC
MARKETING PSYCHOLOGY MEDICAL
USABILITY PACKAGING PC & GAMING
HU
MAN
FACTORS & SIMULATION
Used in a wide variety of research
SPEEDPeak angular speed during a saccade is 900°/s.
That's 0.42 mph or 2x max speedof a Galapagos tortoise.
MUSCLES6 extraocular muscles control the eye movement.
DISTANCEThe farthest object visible to the human eye is the Andromeda Galaxy, 2.6 million light-years away.
X72
HOW EYE TRACKING WORKS
&
PRICE RANGE
THE EYE
6
Respondent positioned properly
Eyes need to be visible
Proper lighting
conditions
Keepdistractions at
a minimum
TIPS FOR GOOD DATA
t
Was this infographic an eye-opener?Take an even closer look at eye tracking:https://imotions.com/blog/eye-tracking
QUANTITATIVE: QUALITATIVE:1 or more30 is a general rule for statistical validity
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