SYSTEM AND METHOD FOR DETERMINING BIOMETRIC PROPERTIES OF AN EYE

摘要

In certain embodiments, determining biometric properties of an eye includes emitting a measuring light beam. The measuring light beam is guided towards the eye for a plurality of scans. For each scan, the measuring light beam enters the cornea in a first lateral region and reaches the retina of the eye in a second lateral region along a corresponding beam path. The beam paths are different from each other. The measuring light beam back-reflected from the eye for each scan is interferometrically analyzed to provide corresponding OCT data. At least one of the following is determined according to the OCT data: at least one distance from a surface of the retina to a surface of the cornea or to a surface of the lens of the eye.

主权项

1. System for determining biometric properties of an eye or parts of the eye, comprising:
an OCT device configured to emit a measuring light beam; a beam guiding device configured to guide the measuring light beam; and a control and analysis device configured to control the beam guiding device to guide the measuring light beam towards the eye for a plurality of scans such that for each scan the measuring light beam enters the cornea in a first lateral region and reaches the retina of the eye in a second lateral region along a corresponding beam path, the second lateral region including the fovea of the retina, the beam paths being different from each other; the OCT device is further configured to interferometrically analyze the measuring light beam back-reflected from the eye for each scan to provide corresponding OCT data; and wherein the control and analysis device is further configured to determine on basis of the OCT data for each scan of the plurality of scans at least one distance from a surface of the retina to a surface of the cornea or to a surface of the lens of the eye.