Three-dimensional optical coherence tomography at 1050 nm versus 800 nm in retinal pathologies: enhanced performance and choroidal penetration in cataract patients.

摘要: Frequency domain optical coherence tomography (FD-OCT), based on an all-reflective high-speed InGaAs spectrometer, operating in the 1050 nm wavelength region for retinal diagnostics, enables high-speed, volumetric imaging of pathologies with greater penetration into choroidal tissue is compared to conventional 800 three-dimensional (3-D) ophthalmic FD-OCT systems. Furthermore, lower scattering at this significantly improves performance cataract patients, thereby widening clinical applicability OCT. The two spectrometer-based 3-D OCT systems respect their performance, one 150 bandwidth (approximately 3 microm effective axial resolution) and other 70 7 resolution). Results achieved reveal, first time, decisive improvements image quality patients clinically significant cataract.