scholarly journals Reflective mirror-based line-scan adaptive optics OCT for imaging retinal structure and function

2021 ◽  
Vol 12 (9) ◽  
pp. 5865
Author(s):  
Vimal Prabhu Pandiyan ◽  
Xiaoyun Jiang ◽  
James A. Kuchenbecker ◽  
Ramkumar Sabesan

2021 ◽  
Author(s):  
Vimal Prabhu Pandiyan ◽  
Xiaoyun Jiang ◽  
James A Kuchenbecker ◽  
Ramkumar Sabesan

Line-scan OCT, incorporated with adaptive optics (AO), offers high resolution, speed and sensitivity for imaging retinal structure and function in vivo. Here, we introduce its implementation with reflective mirror-based afocal telescopes, optimized for imaging light-induced retinal activity (optoretinography) and weak retinal reflections at the cellular scale. A non-planar optical design was followed based on previous recommendations with key differences specific to a line-scan geometry. The three beam paths fundamental to an OCT system -illumination/sample, detection, and reference - were modeled in Zemax optical design software to yield theoretically diffraction-limited performance over a 2.2 deg. field-of-view and 1.5 D vergence range at the eye's pupil. The performance for imaging retinal structure was exemplified by cellular-scale visualization of retinal ganglion cells, macrophages, foveal cones, and rods in human observers. The performance for functional imaging was exemplified by resolving the light-evoked optical changes in foveal cone photoreceptors where the spatial resolution was sufficient for cone spectral classification at an eccentricity 0.3 deg. from the foveal center. This enabled the first in vivo demonstration of reduced S-cone (short-wavelength cone) density in the human foveola, thus far observed only in ex vivo histological preparations. Together, the feasibility for high resolution imaging of retinal structure and function demonstrated here holds significant potential for basic science and translational applications.



Author(s):  
Vimal Prabhu Pandiyan ◽  
Aiden M. Bertelli ◽  
James Kuchenbecker ◽  
Kevin C. Boyle ◽  
Tong Ling ◽  
...  






2015 ◽  
Vol 56 (6) ◽  
pp. 3945 ◽  
Author(s):  
Nazli Demirkaya ◽  
Sophie Cohen ◽  
Ferdinand W. N. M. Wit ◽  
Michael D. Abramoff ◽  
Reinier O. Schlingemann ◽  
...  


Ophthalmology ◽  
2014 ◽  
Vol 121 (1) ◽  
pp. 234-245 ◽  
Author(s):  
Venki Sundaram ◽  
Caroline Wilde ◽  
Jonathan Aboshiha ◽  
Jill Cowing ◽  
Colin Han ◽  
...  


2018 ◽  
Vol 27 (18) ◽  
pp. 3137-3153 ◽  
Author(s):  
Peter M Quinn ◽  
C Henrique Alves ◽  
Jan Klooster ◽  
Jan Wijnholds


PLoS ONE ◽  
2019 ◽  
Vol 14 (12) ◽  
pp. e0226097 ◽  
Author(s):  
Jun Funatsu ◽  
Yusuke Murakami ◽  
Shunji Nakatake ◽  
Masato Akiyama ◽  
Kohta Fujiwara ◽  
...  


2020 ◽  
Vol 61 (5) ◽  
pp. 25
Author(s):  
Daniella B. Victorino ◽  
Jonah J. Scott-McKean ◽  
Mark W. Johnson ◽  
Alberto C. S. Costa


2012 ◽  
Vol 23 (4) ◽  
pp. 356-366 ◽  
Author(s):  
Haoyu Mao ◽  
Marina S. Gorbatyuk ◽  
Brian Rossmiller ◽  
William W. Hauswirth ◽  
Alfred S. Lewin


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