Journal ArticleInvest Ophthalmol Vis Sci · November 4, 2024
PURPOSE: To develop a quantitative tool for assessing the posterior ocular shape using widefield, volumetric optical coherence tomography (OCT) in eyes with myopia. METHODS: This observational, cross-sectional study included 178 eyes from 113 participants. ...
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Journal ArticleOphthalmology · October 2024
PURPOSE: To review the evidence on the safety and effectiveness of epithelium-off corneal collagen cross-linking (CXL) for the treatment of progressive corneal ectasia. METHODS: A literature search of the PubMed database was most recently conducted in Marc ...
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Journal ArticleOphthalmology · October 2024
ObjectiveTo evaluate the published literature on the efficacy of amniotic membrane grafting (AMG) in the management of acute chemical and thermal ocular surface burns with respect to the rate of corneal re-epithelialization and improvement of visu ...
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Journal ArticleOphthalmology · September 2024
PURPOSE: To review the published literature on the safety and outcomes of keratolimbal allograft (KLAL) transplantation and living-related conjunctival limbal allograft (lr-CLAL) transplantation for bilateral severe/total limbal stem cell deficiency (LSCD) ...
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Journal ArticleInvest Ophthalmol Vis Sci · June 3, 2024
PURPOSE: It is necessary to establish a mouse model of keratoconus (KC) for research and therapy. We aimed to determine corneal phenotypes in 3 Ppip5k2 mouse models. METHODS: Central corneal thickness (CCT) was determined using spectral domain optical cohe ...
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Journal ArticleOpt Lett · May 1, 2024
Point scanning retinal imaging modalities, including confocal scanning light ophthalmoscopy (cSLO) and optical coherence tomography, suffer from fixational motion artifacts. Fixation targets, though effective at reducing eye motion, are infeasible in some ...
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Journal ArticleTransl Vis Sci Technol · March 1, 2024
PURPOSE: To evaluate the diagnostic performance of a robotically aligned optical coherence tomography (RAOCT) system coupled with a deep learning model in detecting referable posterior segment pathology in OCT images of emergency department patients. METHO ...
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Journal ArticleOphthalmology · January 2024
PURPOSE: To review the published literature on the diagnostic capabilities of the newest generation of corneal imaging devices for the identification of keratoconus. METHODS: Corneal imaging devices studied included tomographic platforms (Scheimpflug photo ...
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Journal ArticleBiomed Opt Express · October 1, 2023
High-speed, accessible, and robust in vivo imaging of the human retina is critical for screening of retinal pathologies, such as diabetic retinopathy, age-related macular degeneration, and others. Scanning light ophthalmoscopy (SLO) is a retinal imaging mo ...
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Journal ArticleBiomed Opt Express · July 1, 2023
4D-microscope-integrated optical coherence tomography (4D-MIOCT) is an emergent multimodal imaging technology in which live volumetric OCT (4D-OCT) is implemented in tandem with standard stereo color microscopy. 4D-OCT provides ophthalmic surgeons with man ...
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Journal ArticleBiomed Opt Express · July 1, 2023
Ophthalmic microsurgery is traditionally performed using stereomicroscopes and requires visualization and manipulation of sub-millimeter tissue structures with limited contrast. Optical coherence tomography (OCT) is a non-invasive imaging modality that can ...
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Journal ArticleAnn Emerg Med · April 2023
STUDY OBJECTIVE: To evaluate the diagnostic performance of emergency physicians' interpretation of robotically acquired retinal optical coherence tomography images for detecting posterior eye abnormalities in patients seen in the emergency department (ED). ...
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ConferenceInt Symp Med Robot · April 2023
Ophthalmic optical coherence tomography (OCT) has achieved remarkable clinical success but remains sequestered in ophthalmology specialty offices. Recently introduced robotic OCT systems seek to expand patient access but fall short of their full potential ...
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Journal ArticleBMC Ophthalmol · March 31, 2023
BACKGROUND: Despite the increased emphasis on evidence-based medicine, the current state of evidence behind ophthalmology clinical practice guidelines is unknown. The purpose of this systematic analysis was to understand the levels of evidence (LOE) suppor ...
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ConferenceProgress in Biomedical Optics and Imaging - Proceedings of SPIE · January 1, 2023
Adaptive optics optical coherence tomography (AO-OCT) has allowed for the reliable 3-D imaging of individual retinal cells. The current AO-OCT systems are limited to tabletop implementation due to their size and complexity. This work describes the design a ...
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Journal ArticleOptica · November 20, 2022
Point-scanned imaging modalities such as optical coherence tomography (OCT) are subject to frame rate limits governed by the image resolution, sampling rate, and scanner dynamics. For scenes with dynamic features on static backgrounds, adaptive scanning es ...
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Journal ArticleBiomed Opt Express · September 1, 2022
Optical coherence tomography (OCT) may be useful for guidance of ocular microsurgeries such as deep anterior lamellar keratoplasty (DALK), a form of corneal transplantation that requires delicate insertion of a needle into the stroma to approximately 90% o ...
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Journal ArticleJAMA Netw Open · June 1, 2022
IMPORTANCE: Primary care professionals (PCPs) have a central role in screening for diabetic retinopathy (DR), especially in settings where access to specialty eye care is limited. Data on current DR screening practice patterns in primary care are needed to ...
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Journal ArticleIEEE Robot Autom Lett · April 2022
Deep anterior lamellar keratoplasty (DALK) is a technique for cornea transplantation which is associated with reduced patient morbidity. DALK has been explored as a potential application of robot microsurgery because the small scales, fine control requirem ...
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Journal ArticleBiomed Opt Express · February 1, 2022
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 correc ...
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ConferenceProceedings - IEEE International Conference on Robotics and Automation · January 1, 2022
Optical coherence tomography (OCT) has revolutionized diagnostics in ophthalmology. However, it requires pa-tient cooperation to fixate on multiple targets and stabilize their head utilizing both chin and forehead rests. Patient cooperation is particularly ...
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Journal ArticleBiomed Opt Express · December 1, 2021
Optical coherence tomography (OCT) has revolutionized diagnostics in ophthalmology. However, OCT requires a trained operator and patient cooperation to carefully align a scanner with the subject's eye and orient it in such a way that it images a desired re ...
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Journal ArticleBiomedical optics express · September 2021
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 ...
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Journal ArticleNat Biomed Eng · July 2021
Clinical systems for optical coherence tomography (OCT) are used routinely to diagnose and monitor patients with a range of ocular diseases. They are large tabletop instruments operated by trained staff, and require mechanical stabilization of the head of ...
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Journal ArticleBr J Ophthalmol · April 2021
PURPOSE: To investigate the characteristics, risk factors and visual impact of myopic traction maculopathy (MTM) among adults with myopia in Singapore. METHODS: We analysed 3316 myopic eyes of adults aged over 40 years who participated in the Singapore Epi ...
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Journal ArticleRetina · April 1, 2021
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 quanti ...
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Journal ArticleBiomed Opt Express · April 1, 2021
Anterior uveitis is the most common form of intraocular inflammation, and one of its main signs is the presence of white blood cells (WBCs) in the anterior chamber (AC). Clinically, the true composition of cells can currently only be obtained using AC para ...
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Journal ArticleActa Ophthalmol · March 2021
PURPOSE: To investigate the prevalence and risk factors of posterior staphyloma using wide-field optical coherence tomography (WF-OCT) in adults with high myopia in Singapore. DESIGN: Population-based cross-sectional study. METHODS: Adults with spherical e ...
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Journal ArticleBr J Ophthalmol · September 2020
PURPOSE: To evaluate posterior eye shape variations across a wide refractive error range using brain MRI in a multiethnic cohort. METHODS: Adult subjects in the multiethnic Singapore Epidemiology of Eye Disease study were included. Spherical equivalent (SE ...
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Journal ArticleOphthalmology · September 2020
PURPOSE: To review the published literature on the visual acuity results and complications of different surgical techniques for intraocular lens (IOL) implantation in the absence of zonular support. METHODS: Peer-reviewed literature searches were conducted ...
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Journal ArticleOpt Lett · September 1, 2020
Non-confocal adaptive optics scanning laser ophthalmoscopy (AOSLO) has enhanced the study of human retinal photoreceptors by providing complementary information to standard confocal AOSLO images. Previously we developed the first confocal handheld AOSLO (H ...
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Journal ArticleIEEE Trans Robot · August 2020
Ophthalmic microsurgery is technically difficult because the scale of required surgical tool manipulations challenge the limits of the surgeon's visual acuity, sensory perception, and physical dexterity. Intraoperative optical coherence tomography (OCT) im ...
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Journal ArticleIEEE Trans Biomed Eng · July 2020
OBJECTIVE: Deep anterior lamellar keratoplasty (DALK) significantly reduces the post-transplantation morbidity in patients eligible for partial-thickness cornea grafts. The popular "big bubble" technique for DALK is so challenging, however, that a signific ...
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Journal ArticleJ Cataract Refract Surg · June 2020
PURPOSE: To compare the outcomes of an intraoperative aberrometer (ORA) to the Barrett Universal II (Barrett II) and Hill-RBF 2.0 (Hill-RBF) intraocular lens (IOL) power calculation formulas. SETTING: Duke University Eye Center, Durham, North Carolina, USA ...
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Journal ArticleProceedings - IEEE International Conference on Robotics and Automation · May 1, 2020
Robotic automation has the potential to assist human surgeons in performing suturing tasks in microsurgery, and in order to do so a robot must be able to guide a needle with sub-millimeter precision through soft tissue. This paper presents a robotic suturi ...
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Journal ArticleInvest Ophthalmol Vis Sci · April 9, 2020
PURPOSE: To examine the 6-year incidence, progression, associated risk factors, and impact of myopic macular degeneration (MMD) in a myopic population in Singapore. METHODS: We examined myopic (spherical equivalent ≤-0.5 diopters) adults (N = 2157 persons ...
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Journal ArticleOphthalmology · January 2020
PURPOSE: To describe the safety and effectiveness of using autologous serum-based eye drops for the treatment of severe dry eye and persistent corneal epithelial defect. METHODS: Literature searches of the PubMed and Cochrane Library databases were conduct ...
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Journal ArticleExp Eye Res · January 2020
The majority of the eye's refractive power lies in the cornea, and pathological changes in its shape can affect vision. Small animal models offer an unparalleled degree of control over genetic and environmental factors that can help elucidate mechanisms of ...
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ConferenceProgress in Biomedical Optics and Imaging - Proceedings of SPIE · January 1, 2020
Adaptive optics scanning laser ophthalmoscopy (AOSLO) has advanced the study of retinal structure and function by enabling in vivo imaging of individual photoreceptors. Most implementations of AOSLOs are large, complex tabletop systems, thereby preventing ...
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Journal ArticleSci Rep · December 18, 2019
Keratoconus (KC) is the most common corneal ectatic disorder affecting >300,000 people in the US. KC normally has its onset in adolescence, progressively worsening through the third to fourth decades of life. KC patients report significant impaired vision- ...
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Journal ArticleBiomed Opt Express · November 1, 2019
We investigate the influence of optical coherence tomography (OCT) system resolution on high-quality in vivo en face corneal endothelial cell images of the monkey eye, to allow for quantitative analysis of cell density. We vary the lateral resolution of th ...
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Journal ArticleCan J Ophthalmol · October 2019
OBJECTIVE: Clear corneal incisions (CCI) in cataract surgery create a variable amount of surgically induced astigmatism (SIA). As refractive outcomes become increasingly important, it is necessary to understand factors that impact SIA and refractive surpri ...
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Journal ArticleEye Contact Lens · September 2019
Myopia is one of the most prevalent eye diseases, and its advanced form, high myopia, is a leading cause of subsequent pathologic myopia, which in turn results in an increased risk of retinal diseases. The prevalence of myopia and high myopia is 28.3% and ...
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Journal ArticleBiomed Opt Express · July 1, 2019
There is potential clinical significance in identifying cellular responses in the anterior chamber (AC) of the eye, which can indicate hyphema (an accumulation of red blood cells [RBCs]) or aberrant intraocular inflammation (an accumulation of white blood ...
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ConferenceProceedings - IEEE International Conference on Robotics and Automation · May 1, 2019
Optical coherence tomography (OCT) has found great success in ophthalmology where it plays a key role in screening and diagnostics. Clinical ophthalmic OCT systems are typically deployed as tabletop instruments that require chinrest stabilization and train ...
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Journal ArticleBiomed Opt Express · January 1, 2019
Current conventional clinical OCT systems image either only the anterior or the posterior eye during a single acquisition. This localized imaging limits conventional OCT's use for characterizing global ocular morphometry and biometry, which requires knowle ...
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Journal ArticleCornea · October 2018
PURPOSE: To compare anterior segment spectral-domain optical coherence tomography (OCT) with eye bank technician slit-lamp examination (SLE) in characterizing lesions in donor corneas. METHODS: Twenty-nine donor corneas identified by eye bank technicians t ...
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Journal ArticleBiomed Opt Express · October 1, 2018
Ultrahigh speed optical coherence tomography (OCT) systems with >100 kHz A-scan rates can generate volumes rapidly with minimal motion artifacts and are well suited for 4D imaging (volumes through time) applications such as intra-operative imaging. In such ...
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Journal ArticleOptica · September 20, 2018
Adaptive optics scanning laser ophthalmoscopy (AOSLO) has enabled in vivo visualization and enhanced understanding of retinal structure and function. Current generation AOSLOs have a large footprint and are mainly limited to imaging cooperative adult subje ...
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ConferenceProceedings - IEEE International Conference on Robotics and Automation · September 10, 2018
Deep anterior lamellar keratoplasty (DALK) is a promising technique for corneal transplantation that avoids the chronic immunosuppression comorbidities and graft rejection risk associated with penetrating keratoplasty (PKP), the standard procedure. In DALK ...
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Journal ArticleBiomed Opt Express · June 1, 2018
Ophthalmic procedures demand precise surgical instrument control in depth, yet standard operating microscopes supply limited depth perception. Current commercial microscope-integrated optical coherence tomography partially meets this need with manually-pos ...
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Journal ArticleBiomed Opt Express · June 1, 2018
Virtual reality (VR) head-mounted displays are an attractive technology for viewing intrasurgical optical coherence tomography (OCT) volumes because they liberate surgeons from microscope oculars. We demonstrate real-time, interactive viewing of OCT volume ...
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Journal ArticleTransl Vis Sci Technol · April 2018
PURPOSE: We advance studies of subretinal treatments by developing a microscope-integrated optical coherence tomography (MIOCT) image-based method for measuring the volume of therapeutics delivered into the subretinal space. METHODS: A MIOCT image-based vo ...
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Journal ArticleOphthalmology · February 2018
PurposeTo review the published literature on the safety and outcomes of Descemet membrane endothelial keratoplasty (DMEK) for the surgical treatment of corneal endothelial dysfunction.MethodsLiterature searches were last conducted in the ...
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ConferenceProgress in Biomedical Optics and Imaging - Proceedings of SPIE · January 1, 2018
There is great clinical importance in identifying cellular responses in the anterior chamber (AC) which can indicate signs of hyphema (an accumulation of red blood cells (RBCs)) or aberrant intraocular inflammation (an accumulation of white blood cells (WB ...
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ConferenceIEEE International Conference on Intelligent Robots and Systems · December 13, 2017
Intraoperative 3D imaging has great potential for enhancing surgical visualization. This is especially so in ophthalmic surgery where live volumetric imaging from optical coherence tomography systems recently incorporated into surgical microscopes has free ...
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Journal ArticleBiomed Opt Express · September 1, 2017
Age-related macular degeneration (AMD) is a major cause of vision loss in the elderly. To better study the pathobiology of AMD, postmortem eyes offer an excellent opportunity to correlate optical coherence tomography (OCT) imaging characteristics with hist ...
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Journal ArticleRetina · April 2017
PURPOSE: We describe two cases of intraoperative 4D microscope–integrated swept source optical coherence tomography (4D MIOCT) guided 27-gauge transvitreal retinochoroidal biopsy for choroidal melanoma. METHODS: Two 68-year-old females with choroidal melan ...
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Journal ArticleBiomed Opt Express · March 1, 2017
During microsurgery, en face imaging of the surgical field through the operating microscope limits the surgeon's depth perception and visualization of instruments and sub-surface anatomy. Surgical procedures outside microsurgery, such as breast tumor resec ...
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Journal ArticleJ Pediatr Ophthalmol Strabismus · February 14, 2017
The authors report the use of swept-source microscope-integrated optical coherence tomography (SS-MIOCT), capable of live four-dimensional (three-dimensional across time) intraoperative imaging, to directly visualize suture depth during lateral rectus rese ...
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Journal ArticleJ AAPOS · February 2017
PURPOSE: To provide guidelines for safe implantation of glaucoma drainage devices (GDDs) in small and pediatric eyes to avoid contact between the optic nerve (ON) and the posterior edge of the GDD plate. METHODS: We developed a formula for calculating limb ...
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Journal ArticleTransl Vis Sci Technol · January 2017
PURPOSE: Optical coherence tomography (OCT) is widely used in ophthalmology clinics and has potential for more general medical settings and remote diagnostics. In anticipation of remote applications, we developed wireless interactive control of an OCT syst ...
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Journal ArticleIndian J Ophthalmol · January 2017
We report the first use of swept-source microscope-integrated optical coherence tomography (SS-MIOCT) capable of live four-dimensional (4D) (three-dimensional across time) imaging intraoperatively to directly visualize tube shunt placement and trabeculecto ...
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Journal ArticleAsia Pac J Ophthalmol (Phila) · 2017
PURPOSE: To investigate the relationship between intraocular pressure (IOP) and big bubble (BB) formation in a model of deep anterior lamellar keratoplasty (DALK). DESIGN: Ex-vivo. METHODS: Corneoscleral buttons from human donors were loaded onto an artifi ...
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Journal ArticlePLoS One · 2017
IMPORTANCE: Amyotrophic lateral sclerosis (ALS) is a fatal, rapidly progressive neurodegenerative disease that primarily affects motor neurons. Recently, three causative genes have been implicated in both ALS and glaucoma. However, it is still uncertain wh ...
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Journal ArticleBiomed Opt Express · December 1, 2016
Patient motion artifacts are often visible in densely sampled or large wide field-of-view (FOV) retinal optical coherence tomography (OCT) volumes. A popular strategy for reducing motion artifacts is to capture two orthogonally oriented volumetric scans. H ...
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Journal ArticleCornea · November 2016
PURPOSE: To examine big-bubble (BB) formation success rates in deep anterior lamellar keratoplasty (DALK) at various corneal depths using real-time guidance from swept-source, microscope-integrated optical coherence tomography (SS-MIOCT). METHODS: The DALK ...
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Journal ArticleBr J Ophthalmol · October 2016
BACKGROUND/AIMS: To assess peripheral retinal lesions and the posterior pole in single widefield optical coherence tomography (OCT) volumes. METHODS: A wide field of view (FOV) swept-source OCT (WFOV SSOCT) system was developed using a commercial swept-sou ...
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Journal ArticleExp Eye Res · October 2016
In vivo imaging permits longitudinal study of ocular disease processes in the same animal over time. Two different in vivo optical imaging modalities - optical coherence tomography (OCT) and fluorescence - provide important structural and cellular data res ...
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Journal ArticleSci Rep · August 19, 2016
Minimally-invasive microsurgery has resulted in improved outcomes for patients. However, operating through a microscope limits depth perception and fixes the visual perspective, which result in a steep learning curve to achieve microsurgical proficiency. W ...
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Journal ArticleInvest Ophthalmol Vis Sci · July 1, 2016
PURPOSE: Posterior eye shape assessment by magnetic resonance imaging (MRI) is used to study myopia. We tested the hypothesis that optical coherence tomography (OCT), as an alternative, could measure posterior eye shape similarly to MRI. METHODS: Macular s ...
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Journal ArticleInvest Ophthalmol Vis Sci · July 1, 2016
PURPOSE: The integration of swept-source optical coherence tomography (SS-OCT) into the operating microscope enables real-time, tissue-level three-dimensional (3D) imaging to aid in ophthalmic microsurgery. In this prospective randomized controlled study, ...
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Journal ArticleBiomed Opt Express · May 1, 2016
Intra-operative optical coherence tomography (OCT) requires a display technology which allows surgeons to visualize OCT data without disrupting surgery. Previous research and commercial intrasurgical OCT systems have integrated heads-up display (HUD) syste ...
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Journal ArticleBiomed Opt Express · May 1, 2016
Current-generation software for rendering volumetric OCT data sets based on ray casting results in volume visualizations with indistinct tissue features and sub-optimal depth perception. Recent developments in hand-held and microscope-integrated intrasurgi ...
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ConferenceProgress in Biomedical Optics and Imaging - Proceedings of SPIE · January 1, 2016
Ophthalmic surgeons manipulate micron-scale tissues using stereopsis through an operating microscope and instrument shadowing for depth perception. While ophthalmic microsurgery has benefitted from rapid advances in instrumentation and techniques, the basi ...
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Journal ArticleBiomed Opt Express · November 1, 2015
We describe the first handheld, swept source optical coherence tomography (SSOCT) system capable of imaging both the anterior and posterior segments of the eye in rapid succession. A single 2D microelectromechanical systems (MEMS) scanner was utilized for ...
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Journal ArticleBiomed Opt Express · April 1, 2015
Clinically, gonioscopy is used to provide en face views of the ocular angle. The angle has been imaged with optical coherence tomography (OCT) through the corneoscleral limbus but is currently unable to image the angle from within the ocular anterior chamb ...
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Chapter · January 1, 2015
In this chapter, the emerging applications for OCT in real-time, intraoperative diagnostic imaging and visualization of surgical maneuvers is reviewed, focusing on OCT guidance and evaluation of ophthalmic microsurgery. Three different approaches under dev ...
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Journal ArticleJ Cataract Refract Surg · September 2014
PURPOSE: To describe cases of interface haze, also known as textural interface opacity, after Descemet-stripping automated endothelial keratoplasty (DSAEK). SETTING: Department of Cornea, External Disease, and Refractive Surgery Service, Duke Eye Center, D ...
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Journal ArticleBMJ Open · May 2, 2014
OBJECTIVES: The purpose of this study was to identify risk factors for exposure of glaucoma drainage devices (GDD). SETTING: This retrospective, observational study was conducted in the eye clinic of an academic medical centre. PARTICIPANTS: Participants i ...
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Journal ArticleProgress in Biomedical Optics and Imaging - Proceedings of SPIE · January 1, 2014
The ocular iridocorneal angle is generally an optically inaccessible area when viewed directly through the cornea due to the high angle of incidence required and the large index of refraction difference between air and cornea (nair = 1.000 and ncornea = 1. ...
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Journal ArticleIEEE Trans Med Imaging · November 2013
In this paper, we present a novel technique, based on compressive sensing principles, for reconstruction and enhancement of multi-dimensional image data. Our method is a major improvement and generalization of the multi-scale sparsity based tomographic den ...
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Journal ArticleOpt Lett · April 15, 2013
Successful surgical treatment of ocular astigmatism requires accurate characterization of both magnitude and axis of the astigmatism. Keratometry and topography are clinically widely used for this measurement; however, their analysis is limited to the ante ...
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ConferenceDigital Holography and Three-Dimensional Imaging, DH 2012 · December 1, 2012
We report on a preliminary study comparing corneal refractive power acquired using distributed scanning OCT (DSOCT) to corneal topography and Scheimpflug photography in normal subjects both before and after refractive surgery. ...
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Journal ArticleBiomed Opt Express · September 1, 2012
We present a method, termed distributed scanning OCT (DSOCT), which reduces the effects of patient motion on corneal biometry utilizing current-generation clinically available spectral domain optical coherence tomography (SDOCT) systems. We first performed ...
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Journal ArticleBiomed Opt Express · June 1, 2012
We present a comparison of corneal biometric values from dense volumetric spectral domain optical coherence tomography (SDOCT) scans to reference values in both phantoms and clinical subjects. We also present a new optically based "keratometric equivalent ...
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Journal ArticleOpt Lett · June 1, 2012
We report on an implementation of coherence revival-based heterodyne swept source optical coherence tomography that is capable of simultaneously imaging the anterior and posterior eye. A polarization-encoded sample arm was used to efficiently focus orthogo ...
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Journal ArticleBiomed Opt Express · June 1, 2011
Segmentation of anatomical structures in corneal images is crucial for the diagnosis and study of anterior segment diseases. However, manual segmentation is a time-consuming and subjective process. This paper presents an automatic approach for segmenting c ...
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Journal ArticleOpt Express · April 26, 2010
Capable of three-dimensional imaging of the cornea with micrometer-scale resolution, spectral domain-optical coherence tomography (SDOCT) offers potential advantages over Placido ring and Scheimpflug photography based systems for accurate extraction of qua ...
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Journal ArticleOphthalmic Surg Lasers Imaging · 2010
BACKGROUND AND OBJECTIVE: To compare the effects of torsional and mixed ultrasound on clear corneal incision architecture, wound integrity, and apposition using standard (2.75 mm) and microincisional (2.2 mm) coaxial phacoemulsification. SUBJECTS AND METHO ...
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Journal ArticleAm J Ophthalmol · August 2009
PURPOSE: To evaluate endothelial cell trauma by anterior chamber (AC) air bubbles in Descemet stripping automated endothelial keratoplasty (DSAEK). DESIGN: Laboratory investigation. METHODS: Twelve human donor corneas (6 pairs) were sectioned using an auto ...
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Journal ArticleCornea · January 2009
PURPOSE: The purpose of this study was to evaluate the refractive change after Descemet stripping automated endothelial keratoplasty (DSAEK) surgery and its correlation with graft thickness and diameter. METHODS: We retrospectively analyzed the refractive ...
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Journal ArticleAm J Ophthalmol · January 2008
PURPOSE: To present a novel technique to deliver the endothelial graft in small incision Descemet Stripping Automated Endothelial Keratoplasty (DSAEK) and to compare graft trauma between forceps delivery and the novel technique. DESIGN: Laboratory investig ...
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Journal ArticleJ AAPOS · June 2003
PURPOSE: Few data exist regarding the upper limits of refractive error distributions in healthy infants; the data that do exist are biased because they were selected from the records of pediatric ophthalmology practices. We sought to obtain these data to v ...
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Journal ArticleAsia Pac J Ophthalmol (Phila)
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 syst ...
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