Title :
In-vivo measurement of the retinal movements using Fourier domain low coherence interferometry
Author :
Singh, K. ; Dion, C. ; Costantino, S. ; Wajszilber, M. ; Lesk, M.R. ; Ozaki, T.
Author_Institution :
INRS- EMT, Univ. du Quebec, Varennes, QC, Canada
Abstract :
We describe a new instrument developed for the study and diagnosis of glaucoma. This device is based on Fourier domain low coherence interferometry for in vivo measurement of the retinal movements, to assess in real-time the biomechanical properties of the eye. By measuring the displacement of the retina in a live rat, we show that the instrument has a spatial resolution of 200 nm at 200 Hz sampling rate. We found that the amplitude of the retinal movement due to cardiac pulsation is 15 mum. The system has the potential to become a useful clinical tool for evaluating the biomechanical properties of the eye.
Keywords :
Fourier transform optics; bio-optics; biomechanics; biomedical measurement; cardiology; diseases; eye; light interferometry; Fourier domain low coherence interferometry; biomechanics; cardiac pulsation; frequency 200 Hz; glaucoma diagnosis; in-vivo measurement; real-time assessment; retinal displacement; retinal movement; Biomedical optical imaging; Displacement measurement; In vivo; Instruments; Lenses; Mirrors; Optical devices; Optical interferometry; Optical signal processing; Retina; (170.4460) Ophthalmic optics and devices; (170.4500) Optical coherence tomography;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
