Eye testing device
AssigneeHeads Stockholm AB
InventorsHans-Peter Kurz, Bjorn A. Helland-Hansen
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Abstract
The present disclosure relates to a method and a corresponding device (1) for providing an eye metric. The device comprises a display unit (3), producing a visual stimulus (7) to an eye, a feedback unit (9) measuring a response to the stimulus, and an analysing unit (11), outputting a metric result. The device is configured to produce a recurring bleaching impulse together with the stimulus wherein the bleaching impulse is repeated with a frequency greater than 0.3 Hz. This serves to keep the cones of the eye's retina in a saturated state, and the produced metric may be useful in apparatuses for eye evaluation.
Claims13
A device for providing an eye metric, the device comprising a display unit, producing a visual stimulus to an eye, a feedback unit measuring a response to the stimulus and an analysing unit, outputting a metric result, characterized by the device being configured to produce a recurring bleaching impulse together with the stimulus wherein the bleaching impulse is repeated with a frequency greater than 0.3 Hz,
- wherein the display unit is configured to produce a moving stimulus, the frequency with which the bleaching impulse is repeated increases, the eye-tracking unit is configured to detect the eye following and subsequently loosing visual contact with the stimulus, and the analysing unit is configured to provide a metric result based on the bleaching frequency at the time when loss of visual contact was detected.
A method for providing an eye metric in a device comprising a display unit, producing a visual stimulus to an eye, a feedback unit measuring a response to the stimulus, and an analysing unit, outputting a metric result, characterized by a recurring bleaching impulse is produced together with the stimulus wherein the bleaching impulse is repeated with a frequency greater than 0.3 Hz,
- wherein the display unit is configured to produce a moving stimulus, the frequency with which the bleaching impulse is repeated increases, the eye-tracking unit is configured to detect the eye following and subsequently loosing visual contact with the stimulus, and the analysing unit is configured to provide a metric result based on the bleaching frequency at the time when loss of visual contact was detected.
Dependencies are inferred from the claim text.