Optimizing the sampling density of a wave-front sensor in adaptive optics systems: application to scanning laser ophthalmoscopy

Marie Laslandes; Matthias Salas; Christoph K. Hitzenberger; Michael Pircher

doi:10.1117/12.2250732

21 February 2017 Optimizing the sampling density of a wave-front sensor in adaptive optics systems: application to scanning laser ophthalmoscopy

Marie Laslandes, Matthias Salas, Christoph K. Hitzenberger, Michael Pircher

Author Affiliations +

Proceedings Volume 10073, Adaptive Optics and Wavefront Control for Biological Systems III; 1007318 (2017) https://doi.org/10.1117/12.2250732
Event: SPIE BiOS, 2017, San Francisco, California, United States

Abstract

We present the optimization of an adaptive optics loop for retinal imaging. Generally, the wave-front is overdetermined compared to the number of corrector elements. The sampling of the sensor can be reduced while maintaining an efficient correction, leading to higher sensitivity, faster correction and larger dynamic range. An analytical model was developed to characterize the link between number of actuators, number of micro-lenses and correction performance. The optimized correction loop was introduced into a scanning laser ophthalmoscope. In vivo images of foveal photoreceptors were recorded and the obtained image quality is equivalent to the state of the art in retinal AO-imaging.

Conference Presentation

Citation Download Citation

Marie Laslandes, Matthias Salas, Christoph K. Hitzenberger, and Michael Pircher "Optimizing the sampling density of a wave-front sensor in adaptive optics systems: application to scanning laser ophthalmoscopy", Proc. SPIE 10073, Adaptive Optics and Wavefront Control for Biological Systems III, 1007318 (21 February 2017); https://doi.org/10.1117/12.2250732

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available