scholarly journals Curved-field optical coherence tomography: large-field imaging of human corneal cells and nerves

Optica ◽  
2020 ◽  
Vol 7 (8) ◽  
pp. 872
Author(s):  
Viacheslav Mazlin ◽  
Kristina Irsch ◽  
Michel Paques ◽  
Jose-Alain Sahel ◽  
Mathias Fink ◽  
...  
The Analyst ◽  
2020 ◽  
Vol 145 (4) ◽  
pp. 1445-1456 ◽  
Author(s):  
Fabian Placzek ◽  
Eliana Cordero Bautista ◽  
Simon Kretschmer ◽  
Lara M. Wurster ◽  
Florian Knorr ◽  
...  

Characterization of bladder biopsies, using a combined fiber optic probe-based optical coherence tomography and Raman spectroscopy imaging system that allows a large field-of-view imaging and detection and grading of cancerous bladder lesions.


2020 ◽  
Vol 245 (4) ◽  
pp. 342-347 ◽  
Author(s):  
Arash Dadkhah ◽  
Shuliang Jiao

We have developed a multimodal imaging system, which integrated optical resolution photoacoustic microscopy, optical coherence tomography, optical coherence tomography angiography, and confocal fluorescence microscopy in one platform. The system is able to image complementary features of a biological sample by combining different contrast mechanisms. We achieved fast imaging and large field of view by combining optical scanning with mechanical scanning, similar to our previous publication. We have demonstrated the capability of the multimodal imaging system by imaging a mouse ear in vivo. Impact statement Photoacoustic microscopy-based multimodal imaging technology can provide high-resolution complementary information for biological tissues in vivo. It will potentially bring significant impact on the research and diagnosis of diseases by providing combined structural and functional information.


2020 ◽  
Vol 11 (12) ◽  
pp. 6881
Author(s):  
Florian Schwarzhans ◽  
Sylvia Desissaire ◽  
Stefan Steiner ◽  
Michael Pircher ◽  
Christoph K. Hitzenberger ◽  
...  

2018 ◽  
Vol 29 (4) ◽  
pp. 444-452 ◽  
Author(s):  
Vinod Kumar ◽  
Devesh Kumawat ◽  
Ruchir Tewari ◽  
Pradeep Venkatesh

Objective: To describe the ultra-wide field imaging features of pigmented para-venous retino-choroidal atrophy. Design: Retrospective review at a tertiary care centre. Participants: Eight eyes of five patients with pigmented para-venous retino-choroidal atrophy who presented to our retina clinic over last 2 years. Methods: Retrospective review of ultra-wide field pseudo-colour and short wave autofluorescence imaging was performed. In vivo histology of the macula and areas of retino-choroidal atrophy was studied with swept source optical coherence tomography (SS-OCT). Results: The median age was 40 years (range: 22–67 years). Best corrected visual acuity ranged from perception of light to 20/20. The para-venous retino-choroidal atrophy and pigment clumping not only involved the major arcade vessels but also extended into the peripapillary area and retinal periphery. The affected areas demonstrated hypoautofluorescence with sharp hyperautofluorescent borders. Macular atrophy, epiretinal membrane and optic disc pallor were noted in two eyes each. In all cases, the affected pigmentary area had disorganization of inner retinal layers, disruption of outer retinal layers and retinal pigment epithelium and markedly thinned out choroid on swept source optical coherence tomography. Concurrent involvement with retinitis pigmentosa in the fellow eye was noted in two patients. Conclusion: Ultra-wide field imaging of pigmented para-venous retino-choroidal atrophy sheds light onto the widespread retino-choroidal abnormalities. Concurrent disc and macular involvement may jeopardize the visual function. Pigmented para-venous retino-choroidal atrophy may be considered as a self-limited form of retinitis pigmentosa.


2021 ◽  
Author(s):  
Yong Huang ◽  
Xiaochen Li ◽  
Junyu Liu ◽  
Zhengyu Qiao ◽  
Jingsi Chen ◽  
...  

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