Long-range frequency-domain optical delay line based on a spinning tilted mirror for low-cost ocular biometry.

ABSTRACT: Optical biometers are routinely used to measure intraocular distances in ophthalmic applications such as cataract surgery planning or myopia monitoring. However, due to their high cost and reduced transportability, access to them for screening and surgical planning is still limited in low-resource and remote settings. To increase patients' access to optical biometry we propose a novel low-cost frequency-domain optical delay line (FD-ODL) based on an inexpensive stepper motor spinning a tilted mirror, for integration into a time-domain (TD)-biometer, amenable to a compact footprint. In the proposed FD-ODL, the axial scan range and the A-scan rate are decoupled from one another, as the former only depends on the spinning mirror tilt angle, while the A-scan rate only depends on the motor shaf

SUBMITTER: Urizar MP 

PROVIDER: S-EPMC10898555 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature