A ferrofluidic deformable mirror for ophthalmology

J. B. Macpherson; S. Thibault; E. F. Borra; A. M. Ritcey; N. Carufel; D. Asselin; H. Jerominek; M. C. W. Campbell

doi:10.1117/12.628676

13 October 2005 A ferrofluidic deformable mirror for ophthalmology

J. B. Macpherson, S. Thibault, E. F. Borra, A. M. Ritcey, N. Carufel, D. Asselin, H. Jerominek, M. C. W. Campbell

Proceedings Volume 5969, Photonic Applications in Biosensing and Imaging; 59691C (2005) https://doi.org/10.1117/12.628676
Event: Photonics North, 2005, Toronto, Canada

Abstract

Optical aberrations reduce the imaging quality of the human eye. In addition to degrading vision, this limits our ability to illuminate small points of the retina for therapeutic, surgical or diagnostic purposes. When viewing the rear of the eye, aberrations cause structures in the fundus to appear blurred, limiting the resolution of ophthalmoscopes (diagnostic instruments used to image the eye). Adaptive optics, such as deformable mirrors may be used to compensate for aberrations, allowing the eye to work as a diffraction-limited optical element. Unfortunately, this type of correction has not been widely available for ophthalmic applications because of the expense and technical limitations of current deformable mirrors. We present preliminary design and characterisation of a deformable mirror suitable for ophthalmology. In this ferrofluidic mirror, wavefronts are reflected from a fluid whose surface shape is controlled by a magnetic field. Challenges in design are outlined, as are advantages over traditional deformable mirrors.

Citation Download Citation

J. B. Macpherson, S. Thibault, E. F. Borra, A. M. Ritcey, N. Carufel, D. Asselin, H. Jerominek, and M. C. W. Campbell "A ferrofluidic deformable mirror for ophthalmology", Proc. SPIE 5969, Photonic Applications in Biosensing and Imaging, 59691C (13 October 2005); https://doi.org/10.1117/12.628676

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