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Tong J, Phu J, Alonso-Caneiro D, Kugelman J, Khuu S, Agar A, Coroneo M, Kalloniatis M. Exploring the relationship between 24-2 visual field and widefield optical coherence tomography data across healthy, glaucoma suspect and glaucoma eyes. Ophthalmic Physiol Opt 2024. [PMID: 39056571 DOI: 10.1111/opo.13368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 07/08/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024]
Abstract
PURPOSE To utilise ganglion cell-inner plexiform layer (GCIPL) measurements acquired using widefield optical coherence tomography (OCT) scans spanning 55° × 45° to explore the link between co-localised structural parameters and clinical visual field (VF) data. METHODS Widefield OCT scans acquired from 311 healthy, 268 glaucoma suspect and 269 glaucoma eyes were segmented to generate GCIPL thickness measurements. Estimated ganglion cell (GC) counts, calculated from GCIPL measurements, were plotted against 24-2 SITA Faster visual field (VF) thresholds, and regression models were computed with data categorised by diagnosis and VF status. Classification of locations as VF defective or non-defective using GCIPL parameters computed across eccentricity- and hemifield-dependent clusters was assessed by analysing areas under receiver operating characteristic curves (AUROCCs). Sensitivities and specificities were calculated per diagnostic category. RESULTS Segmented linear regression models between GC counts and VF thresholds demonstrated higher variability in VF defective locations relative to non-defective locations (mean absolute error 6.10-9.93 dB and 1.43-1.91 dB, respectively). AUROCCs from cluster-wide GCIPL parameters were similar across methods centrally (p = 0.06-0.84) but significantly greater peripherally, especially when considering classification of more central locations (p < 0.0001). Across diagnoses, cluster-wide GCIPL parameters demonstrated variable sensitivities and specificities (0.36-0.93 and 0.65-0.98, respectively), with the highest specificities observed across healthy eyes (0.73-0.98). CONCLUSIONS Quantitative prediction of VF thresholds from widefield OCT is affected by high variability at VF defective locations. Prediction of VF status based on cluster-wide GCIPL parameters from widefield OCT could become useful to aid clinical decision-making in appropriately targeting VF assessments.
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Affiliation(s)
- Janelle Tong
- Centre for Eye Health, University of New South Wales, Sydney, New South Wales, Australia
- School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
- School of Medicine (Optometry), Deakin University, Waurn Ponds, Victoria, Australia
| | - Jack Phu
- Centre for Eye Health, University of New South Wales, Sydney, New South Wales, Australia
- School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
- School of Medicine (Optometry), Deakin University, Waurn Ponds, Victoria, Australia
- Faculty of Medicine, University of Sydney, Sydney, New South Wales, Australia
- Concord Clinical School, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
| | - David Alonso-Caneiro
- School of Science, Technology and Engineering, University of Sunshine Coast, Sunshine Coast, Queensland, Australia
- Contact Lens and Visual Optics Laboratory, Centre for Vision and Eye Research, School of Optometry and Vision Science, Queensland University of Technology, Kelvin Grove, Queensland, Australia
| | - Jason Kugelman
- Contact Lens and Visual Optics Laboratory, Centre for Vision and Eye Research, School of Optometry and Vision Science, Queensland University of Technology, Kelvin Grove, Queensland, Australia
| | - Sieu Khuu
- School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
| | - Ashish Agar
- Department of Ophthalmology, University of New South Wales at Prince of Wales Hospital, Sydney, New South Wales, Australia
| | - Minas Coroneo
- Department of Ophthalmology, University of New South Wales at Prince of Wales Hospital, Sydney, New South Wales, Australia
| | - Michael Kalloniatis
- School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
- School of Medicine (Optometry), Deakin University, Waurn Ponds, Victoria, Australia
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2
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Hu Y, Feng Y, Long X, Zheng D, Liu G, Lu Y, Ren Q, Huang Z. Megahertz multi-parametric ophthalmic OCT system for whole eye imaging. BIOMEDICAL OPTICS EXPRESS 2024; 15:3000-3017. [PMID: 38855668 PMCID: PMC11161356 DOI: 10.1364/boe.517757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 04/02/2024] [Accepted: 04/04/2024] [Indexed: 06/11/2024]
Abstract
An ultrahigh-speed, wide-field OCT system for the imaging of anterior, posterior, and ocular biometers is crucial for obtaining comprehensive ocular parameters and quantifying ocular pathology size. Here, we demonstrate a multi-parametric ophthalmic OCT system with a speed of up to 1 MHz for wide-field imaging of the retina and 50 kHz for anterior chamber and ocular biometric measurement. A spectrum correction algorithm is proposed to ensure the accurate pairing of adjacent A-lines and elevate the A-scan speed from 500 kHz to 1 MHz for retinal imaging. A registration method employing position feedback signals was introduced, reducing pixel offsets between forward and reverse galvanometer scanning by 2.3 times. Experimental validation on glass sheets and the human eye confirms feasibility and efficacy. Meanwhile, we propose a revised formula to determine the "true" fundus size using all-axial length parameters from different fields of view. The efficient algorithms and compact design enhance system compatibility with clinical requirements, showing promise for widespread commercialization.
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Affiliation(s)
- Yicheng Hu
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing 100871, China
- Institute of Biomedical Engineering, Peking University Shenzhen Graduate School, Shenzhen 518055, China
- Institute of Biomedical Engineering, Shenzhen Bay Laboratory, Shenzhen 518071, China
| | - Yutao Feng
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing 100871, China
- The College of Biochemical Engineering, Beijing Union University, Beijing 100021, China
| | - Xing Long
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing 100871, China
| | - Dongye Zheng
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing 100871, China
- Institute of Biomedical Engineering, Peking University Shenzhen Graduate School, Shenzhen 518055, China
- Institute of Biomedical Engineering, Shenzhen Bay Laboratory, Shenzhen 518071, China
| | - Gangjun Liu
- Institute of Biomedical Engineering, Shenzhen Bay Laboratory, Shenzhen 518071, China
| | - Yanye Lu
- Institute of Biomedical Engineering, Peking University Shenzhen Graduate School, Shenzhen 518055, China
- Institute of Medical Technology, Peking University Health Science Center, Peking University, Beijing 100191, China
| | - Qiushi Ren
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing 100871, China
- Institute of Biomedical Engineering, Peking University Shenzhen Graduate School, Shenzhen 518055, China
- Institute of Biomedical Engineering, Shenzhen Bay Laboratory, Shenzhen 518071, China
| | - Zhiyu Huang
- Institute of Biomedical Engineering, Peking University Shenzhen Graduate School, Shenzhen 518055, China
- Institute of Biomedical Engineering, Shenzhen Bay Laboratory, Shenzhen 518071, China
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3
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Tong J, Alonso-Caneiro D, Kugelman J, Phu J, Khuu SK, Kalloniatis M. Characterisation of the normal human ganglion cell-inner plexiform layer using widefield optical coherence tomography. Ophthalmic Physiol Opt 2024; 44:457-471. [PMID: 37990841 DOI: 10.1111/opo.13255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 11/02/2023] [Accepted: 11/03/2023] [Indexed: 11/23/2023]
Abstract
PURPOSE To describe variations in ganglion cell-inner plexiform layer (GCIPL) thickness in a healthy cohort from widefield optical coherence tomography (OCT) scans. METHODS Widefield OCT scans spanning 55° × 45° were acquired from 470 healthy eyes. The GCIPL was automatically segmented using deep learning methods. Thickness measurements were extracted after correction for warpage and retinal tilt. Multiple linear regression analysis was applied to discern trends between global GCIPL thickness and age, axial length and sex. To further characterise age-related change, hierarchical and two-step cluster algorithms were applied to identify locations sharing similar ageing properties, and rates of change were quantified using regression analyses with data pooled by cluster analysis outcomes. RESULTS Declines in widefield GCIPL thickness with age, increasing axial length and female sex were observed (parameter estimates -0.053, -0.436 and -0.464, p-values <0.001, <0.001 and 0.02, respectively). Cluster analyses revealed concentric, slightly nasally displaced, horseshoe patterns of age-related change in the GCIPL, with up to four statistically distinct clusters outside the macula. Linear regression analyses revealed significant ageing decline in GCIPL thickness across all clusters, with faster rates of change observed at central locations when expressed as absolute (slope = -0.19 centrally vs. -0.04 to -0.12 peripherally) and percentage rates of change (slope = -0.001 centrally vs. -0.0005 peripherally). CONCLUSIONS Normative variations in GCIPL thickness from widefield OCT with age, axial length and sex were noted, highlighting factors worth considering in further developments. Widefield OCT has promising potential to facilitate quantitative detection of abnormal GCIPL outside standard fields of view.
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Affiliation(s)
- Janelle Tong
- Centre for Eye Health, University of New South Wales, Sydney, New South Wales, Australia
- School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
| | - David Alonso-Caneiro
- School of Science, Technology and Engineering, University of Sunshine Coast, Sunshine Coast, Queensland, Australia
- Contact Lens and Visual Optics Laboratory, Centre for Vision and Eye Research, School of Optometry and Vision Science, Queensland University of Technology, Kelvin Grove, Queensland, Australia
| | - Jason Kugelman
- Contact Lens and Visual Optics Laboratory, Centre for Vision and Eye Research, School of Optometry and Vision Science, Queensland University of Technology, Kelvin Grove, Queensland, Australia
| | - Jack Phu
- Centre for Eye Health, University of New South Wales, Sydney, New South Wales, Australia
- School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
- Faculty of Medicine, University of Sydney, Sydney, New South Wales, Australia
- Concord Clinical School, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
- School of Medicine (Optometry), Deakin University, Waurn Ponds, Victoria, Australia
| | - Sieu K Khuu
- School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
| | - Michael Kalloniatis
- School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
- School of Medicine (Optometry), Deakin University, Waurn Ponds, Victoria, Australia
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4
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Saito H, Ueta T, Araie M, Enomoto N, Kambayashi M, Murata H, Kikawa T, Sugiyama K, Higashide T, Miki A, Iwase A, Tomita G, Nakazawa T, Aihara M, Ohno-Matsui K, Kim TW, Leung CKS, Zangwill LM, Weinreb RN. Association of Bergmeister Papilla and Deep Optic Nerve Head Structures With Prelaminar Schisis of Normal and Glaucomatous Eyes. Am J Ophthalmol 2024; 257:91-102. [PMID: 37689330 DOI: 10.1016/j.ajo.2023.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 08/30/2023] [Accepted: 09/01/2023] [Indexed: 09/11/2023]
Abstract
PURPOSE To investigate factors associated with the severity of prelaminar schisis (PLS) in heathy subjects and glaucoma patients. DESIGN Prospective cross-sectional study. METHODS A total of 217 eyes of 217 subjects (110 normal eyes and 107 open angle glaucoma eyes) were studied. Frequency and severity of PLS were compared between normal and glaucomatous eyes. Multivariate logistic models were used to assess factors associated with the severity of PLS. Factors considered were age, axial length, glaucomatous damage indices, Bruch membrane opening (BMO) and anterior scleral canal opening parameters, tractional forces (posterior vitreous staging and presence of Bergmeister papilla), circumpapillary choroidal thickness, lamina cribrosa (LC) parameters, and peripapillary scleral (PPS) angle. RESULTS The frequency of PLS was 70.9% in normal eyes and 72.0% in glaucomatous eyes. There was no difference in frequency and severity between the groups. The presence of Bergmeister papilla was the strongest predictor of a more severe PLS in both normal and glaucomatous eyes (odds ratio [OR] + 9.78, 12.5; both P < .001). A larger PPS angle in normal eyes (OR = 1.19; P = .003) and a larger BMO area and a deeper LC depth in glaucomatous eyes (OR = 1.08, 1.05; both P = .038) were associated with severity of PLS. CONCLUSIONS The severity of PLS was strongly associated with the presence of Bergmeister papilla, suggesting a traction-related phenomenon. Correlation of PLS severity with larger BMO area and deeper LC depth, which are optic nerve head structures associated with glaucoma, suggested its possible relationship with glaucomatous damage.
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Affiliation(s)
- Hitomi Saito
- From the Department of Ophthalmology (H.S., T.U., M.K., M.A.), Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
| | - Takashi Ueta
- From the Department of Ophthalmology (H.S., T.U., M.K., M.A.), Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Makoto Araie
- Kanto Central Hospital of the Mutual Aid Association of Public School Teachers (M.A.), Tokyo, Japan
| | | | - Mitsuki Kambayashi
- From the Department of Ophthalmology (H.S., T.U., M.K., M.A.), Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hiroshi Murata
- Center Hospital of the National Center for Global Health and Medicine (H.M.), Tokyo, Japan
| | | | - Kazuhisa Sugiyama
- Department of Ophthalmology (K.S., T.H.), Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Tomomi Higashide
- Department of Ophthalmology (K.S., T.H.), Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Atsuya Miki
- Department of Innovative Visual Science (A.M.), Osaka University Graduate School of Medicine, Osaka, Japan; Department of Myopia Control Research (A.M.), Aichi Medical University Medical School, Nagakute, Japan
| | - Aiko Iwase
- Tajimi Iwase Eye Clinic (A.I.), Tajimi, Japan
| | - Goji Tomita
- Department of Ophthalmology (G.T.), Toho University Ohashi Medical Center, Tokyo, Japan
| | - Toru Nakazawa
- Department of Ophthalmology (T.N.), Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Makoto Aihara
- From the Department of Ophthalmology (H.S., T.U., M.K., M.A.), Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; Kanto Central Hospital of the Mutual Aid Association of Public School Teachers (M.A.), Tokyo, Japan
| | - Kyoko Ohno-Matsui
- Department of Ophthalmology and Visual Science (K.O.-M.), Tokyo Medical and Dental University, Tokyo, Japan
| | - Tae-Woo Kim
- Department of Ophthalmology (T.-W.K.), Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Christopher Kai Shun Leung
- Department of Ophthalmology (C.K.S.L.), LKS Faculty of Medicine, the University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Linda M Zangwill
- Hamilton Glaucoma Center (L.M.Z., R.N.W.), Shiley Eye Institute, and the Viterbi Family Department of Ophthalmology, University of California San Diego, La Jolla, California, USA
| | - Robert N Weinreb
- Hamilton Glaucoma Center (L.M.Z., R.N.W.), Shiley Eye Institute, and the Viterbi Family Department of Ophthalmology, University of California San Diego, La Jolla, California, USA
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5
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Urizar MP, Gambra E, de Castro A, de la Peña Á, Cetinkaya O, Marcos S, Curatolo A. Optical beam scanner with reconfigurable non-mechanical control of beam position, angle, and focus for low-cost whole-eye OCT imaging. BIOMEDICAL OPTICS EXPRESS 2023; 14:4468-4484. [PMID: 37791284 PMCID: PMC10545213 DOI: 10.1364/boe.493917] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/23/2023] [Accepted: 06/30/2023] [Indexed: 10/05/2023]
Abstract
Whole-eye optical coherence tomography (OCT) imaging is a promising tool in ocular biometry for cataract surgery planning, glaucoma diagnostics and myopia progression studies. However, conventional OCT systems are set up to perform either anterior or posterior eye segment scans and cannot easily switch between the two scan configurations without adding or exchanging optical components to account for the refraction of the eye's optics. Even in state-of-the-art whole-eye OCT systems, the scan configurations are pre-selected and cannot be dynamically reconfigured. In this work, we present the design, optimization and experimental validation of a reconfigurable and low-cost optical beam scanner based on three electro-tunable lenses, capable of non-mechanically controlling the beam position, angle and focus. We derive the analytical theory behind its control. We demonstrate its use in performing alternate anterior and posterior segment imaging by seamlessly switching between a telecentric focused beam scan to an angular collimated beam scan. We characterize the corresponding beam profiles and record whole-eye OCT images in a model eye and in an ex vivo rabbit eye, observing features comparable to those obtained with conventional anterior and posterior OCT scanners. The proposed beam scanner reduces the complexity and cost of other whole-eye scanners and is well suited for 2-D ocular biometry. Additionally, with the added versatility of seamless scan reconfiguration, its use can be easily expanded to other ophthalmic applications and beyond.
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Affiliation(s)
- María Pilar Urizar
- 2EyesVision S.L., Madrid, Spain
- Instituto de Óptica “Daza de Valdés”, Consejo Superior de Investigaciones Científicas (IO, CSIC), Spain
| | | | - Alberto de Castro
- Instituto de Óptica “Daza de Valdés”, Consejo Superior de Investigaciones Científicas (IO, CSIC), Spain
| | - Álvaro de la Peña
- Instituto de Óptica “Daza de Valdés”, Consejo Superior de Investigaciones Científicas (IO, CSIC), Spain
| | - Onur Cetinkaya
- International Centre for Translational Eye Research (ICTER), Institute of Physical Chemistry, Polish Academy of Sciences (IPC-PAS), Warsaw, Poland
| | - Susana Marcos
- Instituto de Óptica “Daza de Valdés”, Consejo Superior de Investigaciones Científicas (IO, CSIC), Spain
- The Institute of Optics and Flaum Eye Institute, Center for Visual Sciences, University of Rochester, New York, USA
| | - Andrea Curatolo
- Instituto de Óptica “Daza de Valdés”, Consejo Superior de Investigaciones Científicas (IO, CSIC), Spain
- International Centre for Translational Eye Research (ICTER), Institute of Physical Chemistry, Polish Academy of Sciences (IPC-PAS), Warsaw, Poland
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6
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Ferraro G, Gigante Y, Pitea M, Mautone L, Ruocco G, Di Angelantonio S, Leonetti M. A model eye for fluorescent characterization of retinal cultures and tissues. Sci Rep 2023; 13:10983. [PMID: 37415074 PMCID: PMC10326009 DOI: 10.1038/s41598-023-37806-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 06/28/2023] [Indexed: 07/08/2023] Open
Abstract
Many human neural or neurodegenerative diseases strongly affect the ocular and retinal environment showing peculiar alterations which can be employed as specific disease biomarkers. The noninvasive optical accessibility of the retina makes the ocular investigation a potentially competitive strategy for screening, thus the development of retinal biomarkers is rapidly growing. Nevertheless, a tool to study and image biomarkers or biological samples in a human-like eye environment is still missing. Here we report on a modular and versatile eye model designed to host biological samples, such as retinal cultures differentiated from human induced pluripotent stem cells and ex-vivo retinal tissue, but also suited to host any kind of retinal biomarkers. We characterized the imaging performance of this eye model on standard biomarkers such as Alexa Fluor 532 and Alexa Fluor 594.
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Affiliation(s)
- G Ferraro
- Center for Life Nano- & Neuro-Science , Istituto Italiano di Tecnologia, Viale Regina Elena, 291, 00161, Rome, Italy
- D-Tails s.r.l. BCorp, Via di Torre Rossa, 66, 00165, Rome, Italy
| | - Y Gigante
- Center for Life Nano- & Neuro-Science , Istituto Italiano di Tecnologia, Viale Regina Elena, 291, 00161, Rome, Italy
- D-Tails s.r.l. BCorp, Via di Torre Rossa, 66, 00165, Rome, Italy
| | - M Pitea
- Center for Life Nano- & Neuro-Science , Istituto Italiano di Tecnologia, Viale Regina Elena, 291, 00161, Rome, Italy
- D-Tails s.r.l. BCorp, Via di Torre Rossa, 66, 00165, Rome, Italy
| | - L Mautone
- Center for Life Nano- & Neuro-Science , Istituto Italiano di Tecnologia, Viale Regina Elena, 291, 00161, Rome, Italy
- Department of Physiology and Pharmacology "V. Erspamer", Sapienza University, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - G Ruocco
- Center for Life Nano- & Neuro-Science , Istituto Italiano di Tecnologia, Viale Regina Elena, 291, 00161, Rome, Italy
- Dipartimento di Fisica, Sapienza University, Piazzale Aldo Moro, 5, 00185, Rome, Italy
| | - S Di Angelantonio
- Center for Life Nano- & Neuro-Science , Istituto Italiano di Tecnologia, Viale Regina Elena, 291, 00161, Rome, Italy.
- D-Tails s.r.l. BCorp, Via di Torre Rossa, 66, 00165, Rome, Italy.
- Department of Physiology and Pharmacology "V. Erspamer", Sapienza University, Piazzale Aldo Moro 5, 00185, Rome, Italy.
| | - M Leonetti
- Center for Life Nano- & Neuro-Science , Istituto Italiano di Tecnologia, Viale Regina Elena, 291, 00161, Rome, Italy.
- D-Tails s.r.l. BCorp, Via di Torre Rossa, 66, 00165, Rome, Italy.
- Institute of Nanotechnology, Soft and Living Matter Laboratory, Consiglio Nazionale delle Ricerche (CNR-NANOTEC), Piazzale Aldo Moro 5, 00185, Rome, Italy.
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Frisken S, Anderson T, Segref A, Lorenser D, Frisken G. Anterior and posterior imaging with hyperparallel OCT. BIOMEDICAL OPTICS EXPRESS 2023; 14:2678-2688. [PMID: 37342723 PMCID: PMC10278637 DOI: 10.1364/boe.488810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/25/2023] [Accepted: 04/29/2023] [Indexed: 06/23/2023]
Abstract
Hyperparallel OCT (HP-OCT) is a parallel spectral domain imaging technology particularly well-suited to the anterior segment. It uses a 2-dimensional grid of 1008 beams to simultaneously image across a wide area of the eye. In this paper we demonstrate that sparsely sampled volumes captured at 300 Hz can be registered without the need for active eye tracking to produce 3-dimensional (3D) volumes free from motion artefacts. The anterior volume provides complete 3D biometric information, including lens position, curvature, epithelial thickness, tilt, and axial length. We further demonstrate that, with the change of a detachable lens, we can capture high resolution anterior volumes and importantly, posterior volume images for preoperative assessment of the posterior segment. Advantageously, the retinal volumes have the same 11.2 mm Nyquist range as the anterior imaging mode.
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8
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Zhang Q, Yang Y, Cao KJ, Chen W, Paidi S, Xia CH, Kramer RH, Gong X, Ji N. Retinal microvascular and neuronal pathologies probed in vivo by adaptive optical two-photon fluorescence microscopy. eLife 2023; 12:84853. [PMID: 37039777 PMCID: PMC10089658 DOI: 10.7554/elife.84853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 03/19/2023] [Indexed: 04/12/2023] Open
Abstract
The retina, behind the transparent optics of the eye, is the only neural tissue whose physiology and pathology can be non-invasively probed by optical microscopy. The aberrations intrinsic to the mouse eye, however, prevent high-resolution investigation of retinal structure and function in vivo. Optimizing the design of a two-photon fluorescence microscope (2PFM) and sample preparation procedure, we found that adaptive optics (AO), by measuring and correcting ocular aberrations, is essential for resolving putative synaptic structures and achieving three-dimensional cellular resolution in the mouse retina in vivo. Applying AO-2PFM to longitudinal retinal imaging in transgenic models of retinal pathology, we characterized microvascular lesions with sub-capillary details in a proliferative vascular retinopathy model, and found Lidocaine to effectively suppress retinal ganglion cell hyperactivity in a retinal degeneration model. Tracking structural and functional changes at high-resolution longitudinally, AO-2PFM enables microscopic investigations of retinal pathology and pharmacology for disease diagnosis and treatment in vivo.
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Affiliation(s)
- Qinrong Zhang
- Department of Physics, University of California, Berkeley, United States
- Department of Molecular and Cell Biology, University of California, Berkeley, United States
| | - Yuhan Yang
- Department of Physics, University of California, Berkeley, United States
| | - Kevin J Cao
- Department of Molecular and Cell Biology, University of California, Berkeley, United States
- Helen Wills Neuroscience Institute, University of California, Berkeley, United States
| | - Wei Chen
- Department of Physics, University of California, Berkeley, United States
- Department of Molecular and Cell Biology, University of California, Berkeley, United States
| | - Santosh Paidi
- School of Optometry, University of California, Berkeley, United States
| | - Chun-Hong Xia
- School of Optometry, University of California, Berkeley, United States
- Vision Science Program, University of California, Berkeley, United States
| | - Richard H Kramer
- Department of Molecular and Cell Biology, University of California, Berkeley, United States
- Helen Wills Neuroscience Institute, University of California, Berkeley, United States
- Vision Science Program, University of California, Berkeley, United States
| | - Xiaohua Gong
- School of Optometry, University of California, Berkeley, United States
- Vision Science Program, University of California, Berkeley, United States
| | - Na Ji
- Department of Physics, University of California, Berkeley, United States
- Department of Molecular and Cell Biology, University of California, Berkeley, United States
- Helen Wills Neuroscience Institute, University of California, Berkeley, United States
- Vision Science Program, University of California, Berkeley, United States
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, United States
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9
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McNabb R, Ortiz P, Roh KM, Song A, Draelos M, Schuman S, Jaffe G, Lad E, Izatt J, Kuo A. Contactless, autonomous robotic alignment of optical coherence tomography for in vivo evaluation of diseased retinas. RESEARCH SQUARE 2023:rs.3.rs-2371365. [PMID: 36711930 PMCID: PMC9882601 DOI: 10.21203/rs.3.rs-2371365/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
During the COVID-19 pandemic, an emphasis was placed on contactless, physical distancing and improved telehealth; contrariwise, standard-of-care ophthalmic imaging of patients required present, trained personnel. Here, we introduce contactless, autonomous robotic alignment of optical coherence tomography (RAOCT) for in vivo imaging of retinal disease and compare measured retinal thickness and diagnostic readability to technician operated clinical OCT. In a powered study, we found no statistically significant difference in retinal thickness in both healthy and diseased retinas (p > 0.7) or across a variety of demographics (gender, race, and age) between RAOCT and clinical OCT. In a secondary study, a retina specialist labeled a given volume as normal/abnormal. Compared to the clinical diagnostic label, sensitivity/specificity for RAOCT were equal or improved over clinical OCT. Contactless, autonomous RAOCT, that improves upon current clinical OCT, could play a role in both ophthalmic care and non-ophthalmic settings that would benefit from improved eye care.
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10
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Ito K, Lye TH, Dan YS, Yu JDG, Silverman RH, Mamou J, Hoang QV. Automated Classification and Detection of Staphyloma with Ultrasound Images in Pathologic Myopia Eyes. ULTRASOUND IN MEDICINE & BIOLOGY 2022; 48:2430-2441. [PMID: 36096896 DOI: 10.1016/j.ultrasmedbio.2022.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 05/13/2022] [Accepted: 06/15/2022] [Indexed: 06/15/2023]
Abstract
The aim of this study was to develop an eyewall curvature- and axial length (AxL)-based algorithm to automate detection (clinician-free) of staphyloma ridge and apex locations using ultrasound (US). Forty-six individuals (with emmetropia, high myopia or pathologic myopia) were enrolled in this study (AxL range: 22.3-39.3 mm), yielding 130 images in total. An intensity-based segmentation algorithm automatically tracked the posterior eyewall, calculating the posterior eyewall local curvature (K) and distance (L) to the transducer and the location of the staphyloma apex. By use of the area under the receiver operator characteristic (AUROC) curve to evaluate the diagnostic ability of eight local statistics derived from K, L and AxL, the algorithm successfully quantified non-uniformity of eye shape with an AUROC > 0.70 for most K-based parameters. The performance of binary classification (staphyloma absence vs. presence) was assessed with the best classifier (the combination of AxL, standard deviation of K and standard deviation of L) yielding a diagnostic validation performance of 0.897, which was comparable to the diagnostic performance of junior clinicians. The staphyloma apex was localized with an average error of 1.35 ± 1.34 mm. Combined with the real-time data acquisition capabilities of US, this method can be employed as a screening tool for clinician-free in vivo staphyloma detection.
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Affiliation(s)
- Kazuyo Ito
- Singapore Eye Research Institute, Singapore National Eye Centre, Duke-NUS Medical School, Singapore
| | - Theresa H Lye
- Department of Radiology, Weill Cornell Medicine, New York, New York, USA
| | - Yee Shan Dan
- Singapore Eye Research Institute, Singapore National Eye Centre, Duke-NUS Medical School, Singapore
| | - Jason D G Yu
- Singapore Eye Research Institute, Singapore National Eye Centre, Duke-NUS Medical School, Singapore
| | - Ronald H Silverman
- Department of Ophthalmology, Columbia University Irving Medical Center, New York, New York, USA
| | - Jonathan Mamou
- Department of Radiology, Weill Cornell Medicine, New York, New York, USA.
| | - Quan V Hoang
- Singapore Eye Research Institute, Singapore National Eye Centre, Duke-NUS Medical School, Singapore; Department of Ophthalmology, Columbia University Irving Medical Center, New York, New York, USA; Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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11
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Alexopoulos P, Madu C, Wollstein G, Schuman JS. The Development and Clinical Application of Innovative Optical Ophthalmic Imaging Techniques. Front Med (Lausanne) 2022; 9:891369. [PMID: 35847772 PMCID: PMC9279625 DOI: 10.3389/fmed.2022.891369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 05/23/2022] [Indexed: 11/22/2022] Open
Abstract
The field of ophthalmic imaging has grown substantially over the last years. Massive improvements in image processing and computer hardware have allowed the emergence of multiple imaging techniques of the eye that can transform patient care. The purpose of this review is to describe the most recent advances in eye imaging and explain how new technologies and imaging methods can be utilized in a clinical setting. The introduction of optical coherence tomography (OCT) was a revolution in eye imaging and has since become the standard of care for a plethora of conditions. Its most recent iterations, OCT angiography, and visible light OCT, as well as imaging modalities, such as fluorescent lifetime imaging ophthalmoscopy, would allow a more thorough evaluation of patients and provide additional information on disease processes. Toward that goal, the application of adaptive optics (AO) and full-field scanning to a variety of eye imaging techniques has further allowed the histologic study of single cells in the retina and anterior segment. Toward the goal of remote eye care and more accessible eye imaging, methods such as handheld OCT devices and imaging through smartphones, have emerged. Finally, incorporating artificial intelligence (AI) in eye images has the potential to become a new milestone for eye imaging while also contributing in social aspects of eye care.
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Affiliation(s)
- Palaiologos Alexopoulos
- Department of Ophthalmology, NYU Langone Health, NYU Grossman School of Medicine, New York, NY, United States
| | - Chisom Madu
- Department of Ophthalmology, NYU Langone Health, NYU Grossman School of Medicine, New York, NY, United States
| | - Gadi Wollstein
- Department of Ophthalmology, NYU Langone Health, NYU Grossman School of Medicine, New York, NY, United States
- Department of Biomedical Engineering, NYU Tandon School of Engineering, Brooklyn, NY, United States
- Center for Neural Science, College of Arts & Science, New York University, New York, NY, United States
| | - Joel S. Schuman
- Department of Ophthalmology, NYU Langone Health, NYU Grossman School of Medicine, New York, NY, United States
- Department of Biomedical Engineering, NYU Tandon School of Engineering, Brooklyn, NY, United States
- Center for Neural Science, College of Arts & Science, New York University, New York, NY, United States
- Department of Electrical and Computer Engineering, NYU Tandon School of Engineering, Brooklyn, NY, United States
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12
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Grytz R, El Hamdaoui M, Fuchs PA, Fazio MA, McNabb RP, Kuo AN, Girkin CA, Samuels BC. Nonlinear distortion correction for posterior eye segment optical coherence tomography with application to tree shrews. BIOMEDICAL OPTICS EXPRESS 2022; 13:1070-1086. [PMID: 35284162 PMCID: PMC8884212 DOI: 10.1364/boe.447595] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 01/14/2022] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
We propose an empirical distortion correction approach for optical coherence tomography (OCT) devices that use a fan-scanning pattern to image the posterior eye segment. Two types of reference markers were used to empirically estimate the distortion correction approach in tree shrew eyes: retinal curvature from MRI images and implanted glass beads of known diameter. Performance was tested by correcting distorted images of the optic nerve head. In small animal eyes, our purposed method effectively reduced nonlinear distortions compared to a linear scaling method. No commercial posterior segment OCT provides anatomically correct images, which may bias the 3D interpretation of these scans. Our method can effectively reduce such bias.
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Affiliation(s)
- Rafael Grytz
- Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, AL, USA
| | - Mustapha El Hamdaoui
- Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, AL, USA
| | - Preston A. Fuchs
- Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, AL, USA
| | - Massimo A. Fazio
- Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, AL, USA
- Department of Biomedical Engineering, University of Alabama at Birmingham, AL, USA
- Viterbi Family Department of Ophthalmology, UC San Diego, La Jolla, CA, USA
| | - Ryan P. McNabb
- Department of Ophthalmology, Duke University Medical Center, Durham, NC, USA
| | - Anthony N. Kuo
- Department of Ophthalmology, Duke University Medical Center, Durham, NC, USA
| | - Christopher A. Girkin
- Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, AL, USA
| | - Brian C. Samuels
- Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, AL, USA
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13
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Choi KJ, Choi JE, Roh HC, Eun JS, Kim JM, Shin YK, Kang MC, Chung JK, Lee C, Lee D, Kang SW, Cho BH, Kim SJ. Deep learning models for screening of high myopia using optical coherence tomography. Sci Rep 2021; 11:21663. [PMID: 34737335 PMCID: PMC8568935 DOI: 10.1038/s41598-021-00622-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 10/13/2021] [Indexed: 12/02/2022] Open
Abstract
This study aimed to validate and evaluate deep learning (DL) models for screening of high myopia using spectral-domain optical coherence tomography (OCT). This retrospective cross-sectional study included 690 eyes in 492 patients with OCT images and axial length measurement. Eyes were divided into three groups based on axial length: a “normal group,” a “high myopia group,” and an “other retinal disease” group. The researchers trained and validated three DL models to classify the three groups based on horizontal and vertical OCT images of the 600 eyes. For evaluation, OCT images of 90 eyes were used. Diagnostic agreements of human doctors and DL models were analyzed. The area under the receiver operating characteristic curve of the three DL models was evaluated. Absolute agreement of retina specialists was 99.11% (range: 97.78–100%). Absolute agreement of the DL models with multiple-column model was 100.0% (ResNet 50), 90.0% (Inception V3), and 72.22% (VGG 16). Areas under the receiver operating characteristic curves of the DL models with multiple-column model were 0.99 (ResNet 50), 0.97 (Inception V3), and 0.86 (VGG 16). The DL model based on ResNet 50 showed comparable diagnostic performance with retinal specialists. The DL model using OCT images demonstrated reliable diagnostic performance to identify high myopia.
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Affiliation(s)
- Kyung Jun Choi
- Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, #81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Jung Eun Choi
- Medical AI Research Center, Samsung Medical Center, #81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Hyeon Cheol Roh
- Department of Ophthalmology, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Republic of Korea
| | - Jun Soo Eun
- Department of Ophthalmology, Gil Medical Center, Gachon University, Incheon, Republic of Korea
| | | | - Yong Kyun Shin
- Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, #81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Min Chae Kang
- Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, #81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Joon Kyo Chung
- Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, #81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Chaeyeon Lee
- Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, #81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Dongyoung Lee
- Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, #81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Se Woong Kang
- Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, #81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Baek Hwan Cho
- Medical AI Research Center, Samsung Medical Center, #81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea. .,Department of Medical Device Management and Research, SAIHST, Sungkyunkwan University, Seoul, 06351, Republic of Korea.
| | - Sang Jin Kim
- Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, #81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea.
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14
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Tan B, McNabb RP, Zheng F, Sim YC, Yao X, Chua J, Ang M, Hoang QV, Kuo AN, Schmetterer L. Ultrawide field, distortion-corrected ocular shape estimation with MHz optical coherence tomography (OCT). BIOMEDICAL OPTICS EXPRESS 2021; 12:5770-5781. [PMID: 34692214 PMCID: PMC8515957 DOI: 10.1364/boe.428430] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 07/08/2021] [Accepted: 07/08/2021] [Indexed: 05/06/2023]
Abstract
Ocular deformation may be associated with biomechanical alterations in the structures of the eye, especially the cornea and sclera in conditions such as keratoconus, congenital glaucoma, and pathological myopia. Here, we propose a method to estimate ocular shape using an ultra-wide field MHz swept-source optical coherence tomography (SS-OCT) with a Fourier Domain Mode-Locked (FDML) laser and distortion correction of the images. The ocular biometrics for distortion correction was collected by an IOLMaster 700, and localized Gaussian curvature was proposed to quantify the ocular curvature covering a field-of-view up to 65°×62°. We achieved repeatable curvature shape measurements (intraclass coefficient = 0.88 ± 0.06) and demonstrated its applicability in a pilot study with individuals (N = 11) with various degrees of myopia.
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Affiliation(s)
- Bingyao Tan
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
- Authors contributed equally to the study
| | - Ryan P McNabb
- Duke University Medical Center, Durham, NC 27607, USA
- Authors contributed equally to the study
| | - Feihui Zheng
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
| | - Yin Ci Sim
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
| | - Xinwen Yao
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
| | - Jacqueline Chua
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Department of Ophthalmology, Duke-NUS Medical School, Singapore
| | - Marcus Ang
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Department of Ophthalmology, Duke-NUS Medical School, Singapore
| | - Quan V Hoang
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Department of Ophthalmology, Duke-NUS Medical School, Singapore
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Ophthalmology, Edward S. Harkness Eye Institute, Columbia College of Physicians and Surgeons, New York, NY 10032, USA
| | - Anthony N Kuo
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Duke University Medical Center, Durham, NC 27607, USA
| | - Leopold Schmetterer
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
- Department of Ophthalmology, Duke-NUS Medical School, Singapore
- Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria
- Institute of Molecular and Clinical Ophthalmology, Basel, Switzerland
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15
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McNabb RP, Liu AS, Gospe SM, El-Dairi M, Meekins LC, James C, Vann RR, Izatt JA, Kuo AN. QUANTITATIVE TOPOGRAPHIC CURVATURE MAPS OF THE POSTERIOR EYE UTILIZING OPTICAL COHERENCE TOMOGRAPHY. Retina 2021; 41:804-811. [PMID: 32568982 PMCID: PMC7744428 DOI: 10.1097/iae.0000000000002897] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE Deformations of the retina such as staphylomas in myopia or scleral flattening in high intracranial pressure can be challenging to quantify with en face imaging. We describe an optical coherence tomography-based method for the generation of quantitative posterior eye topography maps in normal and pathologic eyes. METHODS Using "whole eye" optical coherence tomography, we corrected for subjects' optical distortions to generate spatially accurate posterior eye optical coherence tomography volumes and created local curvature (KM, mm-1) topography maps for each consented subject. We imaged nine subjects, three normal, two with myopic degeneration, and four with papilledema including one that was imaged longitudinally. RESULTS Normal subjects mean temporal KM was 0.0923 mm-1, nasal KM was 0.0927 mm-1, and KM local variability was 0.0162 mm-1. In myopic degeneration, subjects KM local variability was higher at 0.0836 mm-1. In papilledema subjects nasal KM was flatter compared with temporal KM (0.0709 vs. 0.0885 mm-1). Mean intrasession KM repeatability for all subjects was 0.0036 mm-1. CONCLUSION We have developed an optical coherence tomography based method for quantitative posterior eye topography that offers the ability to analyze local curvature with micron scale resolution and offers the potential to help clinicians and researchers characterize subtle, local retinal deformations earlier in patients and follow their development over time.
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Affiliation(s)
- Ryan P. McNabb
- Department of Ophthalmology, Duke University Medical Center, Durham, NC 27710
| | - Alice S. Liu
- Department of Ophthalmology, Duke University Medical Center, Durham, NC 27710
| | - Sidney M. Gospe
- Department of Ophthalmology, Duke University Medical Center, Durham, NC 27710
| | - Mays El-Dairi
- Department of Ophthalmology, Duke University Medical Center, Durham, NC 27710
| | - Landon C. Meekins
- Department of Ophthalmology, Duke University Medical Center, Durham, NC 27710
| | - Charlene James
- Department of Ophthalmology, Duke University Medical Center, Durham, NC 27710
| | - Robin R. Vann
- Department of Ophthalmology, Duke University Medical Center, Durham, NC 27710
| | - Joseph A. Izatt
- Department of Ophthalmology, Duke University Medical Center, Durham, NC 27710
- Department of Biomedical Engineering; Duke University; Durham, NC 27708
| | - Anthony N. Kuo
- Department of Ophthalmology, Duke University Medical Center, Durham, NC 27710
- Department of Biomedical Engineering; Duke University; Durham, NC 27708
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16
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Rodríguez-Aramendía A, Díaz-Doutón F, Fernández-Trullàs J, Falgueras P, González L, Pujol J, Grulkowski I, Güell JL. Whole anterior segment and retinal swept source OCT for comprehensive ocular screening. BIOMEDICAL OPTICS EXPRESS 2021; 12:1263-1278. [PMID: 33796352 PMCID: PMC7984787 DOI: 10.1364/boe.414592] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/30/2020] [Accepted: 01/04/2021] [Indexed: 05/20/2023]
Abstract
Whole eye visualization and morphometry are of high relevance in clinical practice. However, most standard ophthalmic OCT instruments are dedicated either to retinal or to anterior segment imaging. We demonstrate a swept source optical coherence tomography system (SS-OCT) that images both the whole anterior segment and the retina alternately using a single source and detector. A pilot population was imaged with the proof of concept prototype. We demonstrate the clinical potential of whole eye OCT screening for the description and early detection of relevant clinical features in the anterior segment and retina of several patients.
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Affiliation(s)
- Ana Rodríguez-Aramendía
- Instituto de Microcirugía Ocular (IMO), Josep María Lladó 3, Barcelona 08035, Spain
- Center for Sensors, Instruments and Systems Development (CD6), Universitat Politècnica de Catalunya (UPC), Rambla Sant Nebridi 10, Terrassa 08222, Barcelona, Spain
| | - Fernando Díaz-Doutón
- Center for Sensors, Instruments and Systems Development (CD6), Universitat Politècnica de Catalunya (UPC), Rambla Sant Nebridi 10, Terrassa 08222, Barcelona, Spain
| | - José Fernández-Trullàs
- Center for Sensors, Instruments and Systems Development (CD6), Universitat Politècnica de Catalunya (UPC), Rambla Sant Nebridi 10, Terrassa 08222, Barcelona, Spain
| | - Pol Falgueras
- Center for Sensors, Instruments and Systems Development (CD6), Universitat Politècnica de Catalunya (UPC), Rambla Sant Nebridi 10, Terrassa 08222, Barcelona, Spain
| | - Laura González
- Instituto de Microcirugía Ocular (IMO), Josep María Lladó 3, Barcelona 08035, Spain
| | - Jaume Pujol
- Center for Sensors, Instruments and Systems Development (CD6), Universitat Politècnica de Catalunya (UPC), Rambla Sant Nebridi 10, Terrassa 08222, Barcelona, Spain
| | - Ireneusz Grulkowski
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, ul. Grudziądzka 5, 87-100 Toruń, Poland
| | - José Luis Güell
- Instituto de Microcirugía Ocular (IMO), Josep María Lladó 3, Barcelona 08035, Spain
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17
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Sher I, Moverman D, Ketter-Katz H, Moisseiev E, Rotenstreich Y. In vivo retinal imaging in translational regenerative research. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1096. [PMID: 33145315 PMCID: PMC7575995 DOI: 10.21037/atm-20-4355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Regenerative translational studies must include a longitudinal assessment of the changes in retinal structure and function that occur as part of the natural history of the disease and those that result from the studied intervention. Traditionally, retinal structural changes have been evaluated by histological analysis which necessitates sacrificing the animals. In this review, we describe key imaging approaches such as fundus imaging, optical coherence tomography (OCT), OCT-angiography, adaptive optics (AO), and confocal scanning laser ophthalmoscopy (cSLO) that enable noninvasive, non-contact, and fast in vivo imaging of the posterior segment. These imaging technologies substantially reduce the number of animals needed and enable progression analysis and longitudinal follow-up in individual animals for accurate assessment of disease natural history, effects of interventions and acute changes. We also describe the benefits and limitations of each technology, as well as outline possible future directions that can be taken in translational retinal imaging studies.
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Affiliation(s)
- Ifat Sher
- Goldschleger Eye Institute, Sheba Medical Center, Tel-Hashomer, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Daniel Moverman
- Goldschleger Eye Institute, Sheba Medical Center, Tel-Hashomer, Israel
| | - Hadas Ketter-Katz
- Goldschleger Eye Institute, Sheba Medical Center, Tel-Hashomer, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Elad Moisseiev
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Department of Ophthalmology, Meir Medical Center, Kfar Saba, Israel
| | - Ygal Rotenstreich
- Goldschleger Eye Institute, Sheba Medical Center, Tel-Hashomer, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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18
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Ho AC, Wibbelsman TD, Pandit RR, Xu D. Trends in Ophthalmic Imaging: Implications and Outlook. Am J Ophthalmol 2020; 210:1-2. [PMID: 31780042 DOI: 10.1016/j.ajo.2019.10.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/03/2019] [Accepted: 10/04/2019] [Indexed: 11/26/2022]
Affiliation(s)
- Allen C Ho
- Retina Service, Wills Eye Hospital, Philadelphia, Pennsylvania, USA.
| | | | - Ravi R Pandit
- Retina Service, Wills Eye Hospital, Philadelphia, Pennsylvania, USA
| | - David Xu
- Retina Service, Wills Eye Hospital, Philadelphia, Pennsylvania, USA
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19
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Kuo AN, McNabb RP, Izatt JA. Advances in Whole-Eye Optical Coherence Tomography Imaging. Asia Pac J Ophthalmol (Phila) 2019; 8:99-104. [PMID: 30907077 PMCID: PMC6955390 DOI: 10.22608/apo.201901] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Contemporary anterior segment and retinal optical coherence tomography (OCT) systems only image their particular designated region of the eye and cannot image both areas of the eye at the same time. This separation is due to the differences in optical system design needed to properly image the front or back of the eye and also due to limitations in the imaging depth of current commercial OCT systems. More recently, research and commercial OCT systems capable of "whole-eye" imaging have been described. These whole-eye OCT systems enable applications such as ocular biometry for cataract surgery, ocular shape analysis for myopia, and others. Further, these whole-eye OCT systems allow us to image the eye as an integrated whole rather than as separate, independent divisions.
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Affiliation(s)
- Anthony N. Kuo
- Ophthalmology, Duke University School of Medicine, Durham, NC USA
- Biomedical Engineering, Duke University, Durham, NC USA
| | - Ryan P. McNabb
- Ophthalmology, Duke University School of Medicine, Durham, NC USA
| | - Joseph A. Izatt
- Ophthalmology, Duke University School of Medicine, Durham, NC USA
- Biomedical Engineering, Duke University, Durham, NC USA
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