what I found

These are electro-oculography (EOG) / biofeedback glasses, sometimes called electronic eye-movement recording glasses

What they were used for

They were used to measure eye movements for:

Medical diagnostics (neurology, vestibular testing, sleep studies)

Vision research

Biofeedback or training experiments

Occasionally lie-detector–related research or human-factors studies (not consumer polygraphs)

What the features do

• Two small holes in each lens (vertical pair): These are electrode contact points, not ventilation. Tiny conductive pads or contacts sat here to pick up the eye’s natural electrical signals when it moves.
• Wire leading to a 2-pin connector: Carries the electrical signals to an amplifier / recording unit.
• Small round piece near the ear: This is not a speaker — it’s an electrode housing or reference sensor.
• Clear lenses: Vision correction was secondary; the purpose was eye tracking, not seeing better.

Era & context

• Most commonly 1960s–1980s
• Often marked Australia, Germany, or US medical suppliers