Measurement of intraocular distances in human eyes by using Fourier domain low-coherence interferometry

We introduce a system for rapidly measuring the intraocular distances of human eyes in vivo with high sensitivity by using Fourier domain low-coherence interferometry. The system mainly consisting of a rapid focus displacement unit and a reference arm which has a variable optical path length. This system is capable of providing a complete biometrical assessment of a human eye in a single measurement procedure, including cornea thickness, anterior chamber depth, lens thickness, and axial length. The system is experimentally verified by measuring the four parameters of a human eye in vivo.

[1]  Michael Pircher,et al.  High sensitive measurement of the human axial eye length in vivo with Fourier domain low coherence interferometry. , 2008, Optics express.

[2]  Colm McAlinden,et al.  Subjective quality of vision before and after cataract surgery. , 2012, Archives of ophthalmology.

[3]  Adolf Friedrich Fercher,et al.  Measurement of Intraocular Optical Distances Using Partially Coherent Laser Light , 1991 .

[4]  A. Fercher,et al.  Measurement of intraocular distances by backscattering spectral interferometry , 1995 .

[5]  Fan Lu,et al.  Scheimpflug–Placido topographer and optical low‐coherence reflectometry biometer: Repeatability and agreement , 2012, Journal of cataract and refractive surgery.

[6]  Colm McAlinden,et al.  Multifocal intraocular lens with a surface‐embedded near section: Short‐term clinical outcomes , 2011, Journal of cataract and refractive surgery.

[7]  Frank Krummenauer,et al.  Reproducibility of optical biometry using partial coherence interferometry: intraobserver and interobserver reliability , 2001, Journal of cataract and refractive surgery.

[8]  Adolf Friedrich Fercher,et al.  Ophthalmic Laser Interferometry , 1986, Other Conferences.

[9]  B. Bouma,et al.  Improved signal-to-noise ratio in spectral-domain compared with time-domain optical coherence tomography. , 2003, Optics letters.

[10]  Benjamin A. Rockwell,et al.  A procedure for laser hazard classification under the Z136.1-2000 American National Standard for Safe Use of Lasers , 2002 .

[11]  Tanya Horsley,et al.  The consequences of waiting for cataract surgery: a systematic review , 2007, Canadian Medical Association Journal.

[12]  A. Fercher,et al.  Performance of fourier domain vs. time domain optical coherence tomography. , 2003, Optics express.

[13]  János Németh,et al.  Optical and ultrasound measurement of axial length and anterior chamber depth for intraocular lens power calculation , 2003, Journal of cataract and refractive surgery.