The Seeing Machine
Read the illustrated essay →
01 · Optics
Focus
01
Focus
02
Movement
03
Wiring
Labels
Presets
Young eye
Myope −4 D
Hyperope +3 D
Age 60, reading
Object distance
Age
Axial length
Pupil
Prescribe glasses
Off-axis point
On the fovea
Experiment
Follow cursor
H-test
Saccades
Pursuit
Vergence
Target distance
Pursuit frequency
Cranial nerve palsy
Right eye
III
IV
VI
Left eye
III
IV
VI
What the patient sees
red-glass test
Eye position
R
L
target
Stimulus
Probe
Full-field flash
Off
Colour axons by
Eye of origin
Visual hemifield
Lesion
Place your own lesion
r
3 mm
Visual fields
computed from surviving axons
Left eye
Right eye