Anterior and posterior imaging with hyperparallel OCT.
Biomed Opt Express
; 14(6): 2678-2688, 2023 Jun 01.
Article
in En
| MEDLINE
| ID: mdl-37342723
ABSTRACT
Hyperparallel OCT (HP-OCT) is a parallel spectral domain imaging technology particularly well-suited to the anterior segment. It uses a 2-dimensional grid of 1008 beams to simultaneously image across a wide area of the eye. In this paper we demonstrate that sparsely sampled volumes captured at 300â
Hz can be registered without the need for active eye tracking to produce 3-dimensional (3D) volumes free from motion artefacts. The anterior volume provides complete 3D biometric information, including lens position, curvature, epithelial thickness, tilt, and axial length. We further demonstrate that, with the change of a detachable lens, we can capture high resolution anterior volumes and importantly, posterior volume images for preoperative assessment of the posterior segment. Advantageously, the retinal volumes have the same 11.2 mm Nyquist range as the anterior imaging mode.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Biomed Opt Express
Year:
2023
Document type:
Article
Affiliation country:
Australia