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Journal articles on the topic '3D Retinal Reconstruction'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Marciniak, Tomasz, Agnieszka Stankiewicz, and Przemyslaw Zaradzki. "Neural Networks Application for Accurate Retina Vessel Segmentation from OCT Fundus Reconstruction." Sensors 23, no. 4 (2023): 1870. http://dx.doi.org/10.3390/s23041870.

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The use of neural networks for retinal vessel segmentation has gained significant attention in recent years. Most of the research related to the segmentation of retinal blood vessels is based on fundus images. In this study, we examine five neural network architectures to accurately segment vessels in fundus images reconstructed from 3D OCT scan data. OCT-based fundus reconstructions are of much lower quality compared to color fundus photographs due to noise and lower and disproportionate resolutions. The fundus image reconstruction process was performed based on the segmentation of the retina

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Lee, In-Kyu, Allison L. Ludwig, M. Joseph Phillips, et al. "Ultrathin micromolded 3D scaffolds for high-density photoreceptor layer reconstruction." Science Advances 7, no. 17 (2021): eabf0344. http://dx.doi.org/10.1126/sciadv.abf0344.

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Polymeric scaffolds are revolutionizing therapeutics for blinding disorders affecting the outer retina, a region anatomically and functionally defined by light-sensitive photoreceptors. Recent engineering advances have produced planar scaffolds optimized for retinal pigment epithelium monolayer delivery, which are being tested in early-stage clinical trials. We previously described a three-dimensional scaffold supporting a polarized photoreceptor monolayer, but photoreceptor somata typically occupy multiple densely packed strata to maximize light detection. Thus, patients with severe photorece

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Malek, Jihene, and Ahmad Taher Azar. "3D surface reconstruction of retinal vascular structures." International Journal of Modelling, Identification and Control 26, no. 4 (2016): 303. http://dx.doi.org/10.1504/ijmic.2016.081131.

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Malek, Jihene, and Ahmad Taher Azar. "3D surface reconstruction of retinal vascular structures." International Journal of Modelling, Identification and Control 26, no. 4 (2016): 303. http://dx.doi.org/10.1504/ijmic.2016.10002135.

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Bielmeier, Christina B., Saskia Roth, Sabrina I. Schmitt, et al. "Transcriptional Profiling Identifies Upregulation of Neuroprotective Pathways in Retinitis Pigmentosa." International Journal of Molecular Sciences 22, no. 12 (2021): 6307. http://dx.doi.org/10.3390/ijms22126307.

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Hereditary retinal degenerations like retinitis pigmentosa (RP) are among the leading causes of blindness in younger patients. To enable in vivo investigation of cellular and molecular mechanisms responsible for photoreceptor cell death and to allow testing of therapeutic strategies that could prevent retinal degeneration, animal models have been created. In this study, we deeply characterized the transcriptional profile of mice carrying the transgene rhodopsin V20G/P23H/P27L (VPP), which is a model for autosomal dominant RP. We examined the degree of photoreceptor degeneration and studied the

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RODRIGUES, P., P. GUIMARãES, P. SERRANHO, and R. BERNARDES. "Enhanced 3D retinal vascular network reconstruction from high-definition SD-OCT." Acta Ophthalmologica 91 (August 2013): 0. http://dx.doi.org/10.1111/j.1755-3768.2013.4464.x.

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PROF., SUBHASH S. PATIL. "OVERVIEW OF ARTERY AND VEIN CLASSIFICATION IN RETINAL IMAGES USING GRAPH BASED APPROACH." IJIERT - International Journal of Innovations in Engineering Research and Technology 3, no. 6 (2016): 87–95. https://doi.org/10.5281/zenodo.1463716.

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<strong>To investigate whether retinal vessel caliber measurements on optical retinal Photography are affected by light and dark exposure prior to photography. Whether the vessel caliber changes during an imaging sequence,Digital optical retinal photographs which is obtained from 32 healthy Adults in two separate image sequences of six images during 1 min;one sequence with of dark exposure and one with of light exposure for 10 min each of prior to imaging. Retinal arteriolar and venular calibers were measured computer - assisted and summarized as central retinal artery and vein equivalents (CR

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Miller, Donald T., and Kazuhiro Kurokawa. "Cellular-Scale Imaging of Transparent Retinal Structures and Processes Using Adaptive Optics Optical Coherence Tomography." Annual Review of Vision Science 6, no. 1 (2020): 115–48. http://dx.doi.org/10.1146/annurev-vision-030320-041255.

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High-resolution retinal imaging is revolutionizing how scientists and clinicians study the retina on the cellular scale. Its exquisite sensitivity enables time-lapse optical biopsies that capture minute changes in the structure and physiological processes of cells in the living eye. This information is increasingly used to detect disease onset and monitor disease progression during early stages, raising the possibility of personalized eye care. Powerful high-resolution imaging tools have been in development for more than two decades; one that has garnered considerable interest in recent years

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Zhang, Jiong, Shuai Yu, Yonghuai Liu, et al. "3D microvascular reconstruction in retinal OCT angiography images via domain-adaptive learning." Pattern Recognition 165 (September 2025): 111494. https://doi.org/10.1016/j.patcog.2025.111494.

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Baamonde, Sergio, Joaquim de Moura, Jorge Novo, Pablo Charlón, and Marcos Ortega. "Automatic Identification and Intuitive Map Representation of the Epiretinal Membrane Presence in 3D OCT Volumes." Sensors 19, no. 23 (2019): 5269. http://dx.doi.org/10.3390/s19235269.

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Optical Coherence Tomography (OCT) is a medical image modality providing high-resolution cross-sectional visualizations of the retinal tissues without any invasive procedure, commonly used in the analysis of retinal diseases such as diabetic retinopathy or retinal detachment. Early identification of the epiretinal membrane (ERM) facilitates ERM surgical removal operations. Moreover, presence of the ERM is linked to other retinal pathologies, such as macular edemas, being among the main causes of vision loss. In this work, we propose an automatic method for the characterization and visualizatio

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de, Moura Joaquim, Jorge Novo, Pablo Charlón, Noelia Barreira, and Marcos Ortega. "Enhanced visualization of the retinal vasculature using depth information in OCT." Medical & Biological Engineering & Computing 55 (June 5, 2017): 2209–25. https://doi.org/10.1007/s11517-017-1660-8.

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This version of the article has been accepted for publication, after peer review and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1007/s11517-017-1660-8 [Abstract]: Retinal vessel tree extraction is a crucial step for analyzing the microcirculation, a frequently needed process in the study of relevant diseases. To date, this has normally been done by using 2D image capture paradigms, offering a restricted visualizatio

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Nanaware, Miss Aishwarya. "3D Reconstruction of Retinal Images using Fundus Image for Increased Anatomic View and Glaucoma Detection." International Journal for Research in Applied Science and Engineering Technology 8, no. 10 (2020): 338–43. http://dx.doi.org/10.22214/ijraset.2020.31880.

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Mohammadinejad, Reza, Anuj Kumar, Marziyeh Ranjbar-Mohammadi, et al. "Recent Advances in Natural Gum-Based Biomaterials for Tissue Engineering and Regenerative Medicine: A Review." Polymers 12, no. 1 (2020): 176. http://dx.doi.org/10.3390/polym12010176.

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The engineering of tissues under a three-dimensional (3D) microenvironment is a great challenge and needs a suitable supporting biomaterial-based scaffold that may facilitate cell attachment, spreading, proliferation, migration, and differentiation for proper tissue regeneration or organ reconstruction. Polysaccharides as natural polymers promise great potential in the preparation of a three-dimensional artificial extracellular matrix (ECM) (i.e., hydrogel) via various processing methods and conditions. Natural polymers, especially gums, based upon hydrogel systems, provide similarities largel

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Syed, Adeel M., Taimur Hassan, M. Usman Akram, Samra Naz, and Shehzad Khalid. "Automated diagnosis of macular edema and central serous retinopathy through robust reconstruction of 3D retinal surfaces." Computer Methods and Programs in Biomedicine 137 (December 2016): 1–10. http://dx.doi.org/10.1016/j.cmpb.2016.09.004.

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Wu, Kevin Y., Adrian Tabari, Éric Mazerolle, and Simon D. Tran. "Towards Precision Ophthalmology: The Role of 3D Printing and Bioprinting in Oculoplastic Surgery, Retinal, Corneal, and Glaucoma Treatment." Biomimetics 9, no. 3 (2024): 145. http://dx.doi.org/10.3390/biomimetics9030145.

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In the forefront of ophthalmic innovation, biomimetic 3D printing and bioprinting technologies are redefining patient-specific therapeutic strategies. This critical review systematically evaluates their application spectrum, spanning oculoplastic reconstruction, retinal tissue engineering, corneal transplantation, and targeted glaucoma treatments. It highlights the intricacies of these technologies, including the fundamental principles, advanced materials, and bioinks that facilitate the replication of ocular tissue architecture. The synthesis of primary studies from 2014 to 2023 provides a ri

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Vaina, Lucia, Finnegan Calabro, Elif Sikoglu, and Scott Beardsley. "Integration Mechanisms for Heading Perception." Seeing and Perceiving 23, no. 3 (2010): 197–221. http://dx.doi.org/10.1163/187847510x503605.

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AbstractPrevious studies of heading perception suggest that human observers employ spatiotemporal pooling to accommodate noise in optic flow stimuli. Here, we investigated how spatial and temporal integration mechanisms are used for judgments of heading through a psychophysical experiment involving three different types of noise. Furthermore, we developed two ideal observer models to study the components of the spatial information used by observers when performing the heading task. In the psychophysical experiment, we applied three types of direction noise to optic flow stimuli to differentiat

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Zandt, Bas-Jan, Are Losnegård, Erlend Hodneland, Margaret Lin Veruki, Arvid Lundervold, and Espen Hartveit. "Semi-automatic 3D morphological reconstruction of neurons with densely branching morphology: Application to retinal AII amacrine cells imaged with multi-photon excitation microscopy." Journal of Neuroscience Methods 279 (March 2017): 101–18. http://dx.doi.org/10.1016/j.jneumeth.2017.01.008.

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Turgel, V. A., A. S. Mansurov, E. A. Patrina, S. N. Tultseva, and M. V. Rusnak. "Perspective of optical coherence tomography angiography in visual outcome prognosis in patients after aneurysm stenting of the ophthalmic segment of the internal carotid artery. Pilot study." Regional blood circulation and microcirculation 23, no. 4 (2025): 149–55. https://doi.org/10.24884/1682-6655-2024-23-4-149-155.

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Background. In microinvasive surgery of aneurysms of the ophthalmic segment of the internal carotid artery (AOS-ICA), flow-diverting stents are often used, which overlap the area of the ophthalmic artery origin. This type of treatment may be accompanied by visual acuity decrease in the intraas well as in the early and late postoperative period.Aim – to evaluate ocular hemodynamics indices in patients with AOS-ICA before and after the ophthalmic segment of the internal carotid artery stenting.Materials and methods. The study group consisted of 17 patients (16 women and 1 man), age median being

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Carneiro, João, Sio-Hoi Ieng, Christoph Posch, and Ryad Benosman. "Event-based 3D reconstruction from neuromorphic retinas." Neural Networks 45 (September 2013): 27–38. http://dx.doi.org/10.1016/j.neunet.2013.03.006.

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Ljungholm, Mikael, and Dan-E. Nilsson. "Modelling the visual world of a velvet worm." PLOS Computational Biology 17, no. 7 (2021): e1008808. http://dx.doi.org/10.1371/journal.pcbi.1008808.

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In many animal phyla, eyes are small and provide only low-resolution vision for general orientation in the environment. Because these primitive eyes rarely have a defined image plane, traditional visual-optics principles cannot be applied. To assess the functional capacity of such eyes we have developed modelling principles based on ray tracing in 3D reconstructions of eye morphology, where refraction on the way to the photoreceptors and absorption in the photopigment are calculated incrementally for ray bundles from all angles within the visual field. From the ray tracing, we calculate the co

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Korte, G. E., M. Marko, and G. Hageman. "High-voltage electron microscopy of subretinal scar formation." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 1 (1992): 486–87. http://dx.doi.org/10.1017/s0424820100122836.

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Sodium iodate iv. damages the retinal pigment epithelium (RPE) in rabbits. Where RPE does not regenerate (e.g., 1,2) Muller glial cells (MC) forma subretinal scar that replaces RPE. The MC response was studied by HVEM in 3D computer reconstructions of serial thick sections, made using the STEREC0N program (3), and the HVEM at the NYS Dept. of Health in Albany, NY. Tissue was processed for HVEM or immunofluorescence localization of a monoclonal antibody recognizing MG microvilli (4).

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Si, Lipeng, Guangyi Jiang, Xiuhua Hu, and Baolong Liu. "Retina 3D Perception Reconstruction Algorithm Based on Visual Light Field Image." IEEE Access 8 (2020): 196804–12. http://dx.doi.org/10.1109/access.2020.3033116.

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Song, Wenhe, Shiliang Lou, Jun Wu, Lei Geng, Fang Zhang, and Zhitao Xiao. "3D Reconstruction of the Retina Based on Un-Calibrated Fundus Images." Journal of Medical Imaging and Health Informatics 9, no. 1 (2019): 202–8. http://dx.doi.org/10.1166/jmihi.2019.2561.

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Hichem, Guedri, Fraj Chouchene, and Hafedh Belmabrouk. "3D Model Reconstruction of Blood Vessels in The Retina with Tubular Structure." International Journal on Electrical Engineering and Informatics 7, no. 4 (2015): 724–34. http://dx.doi.org/10.15676/ijeei.2015.7.4.14.

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Cheng, Jun, Dacheng Tao, Ying Quan, et al. "Speckle Reduction in 3D Optical Coherence Tomography of Retina by A-Scan Reconstruction." IEEE Transactions on Medical Imaging 35, no. 10 (2016): 2270–79. http://dx.doi.org/10.1109/tmi.2016.2556080.

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Patterson, Sara S., Rebecca J. Girresch, Marcus A. Mazzaferri, et al. "Synaptic Origins of the Complex Receptive Field Structure in Primate Smooth Monostratified Retinal Ganglion Cells." eneuro 11, no. 1 (2024): ENEURO.0280–23.2023. http://dx.doi.org/10.1523/eneuro.0280-23.2023.

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Considerable progress has been made in studying the receptive fields of the most common primate retinal ganglion cell (RGC) types, such as parasol RGCs. Much less is known about the rarer primate RGC types and the circuitry that gives rise to noncanonical receptive field structures. The goal of this study was to analyze synaptic inputs to smooth monostratified RGCs to determine the origins of their complex spatial receptive fields, which contain isolated regions of high sensitivity called “hotspots.” Interestingly, smooth monostratified RGCs co-stratify with the well-studied parasol RGCs and a

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Rieke, Matthias, Eric Gottwald, Karl-Friedrich Weibezahn, and Paul Gottlob Layer. "Tissue reconstruction in 3D-spheroids from rodent retina in a motion-free, bioreactor-based microstructure." Lab on a Chip 8, no. 12 (2008): 2206. http://dx.doi.org/10.1039/b806988c.

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Tu, Kefeng, Qiyang Chen, Zi Wang, Guoqiang Lv, and Qibin Feng. "Depth-Enhanced Holographic Super Multi-View Maxwellian Display Based on Variable Filter Aperture." Micromachines 14, no. 6 (2023): 1167. http://dx.doi.org/10.3390/mi14061167.

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The super multi-view (SMV) near-eye display (NED) effectively provides depth cues for three-dimensional (3D) displays by projecting multiple viewpoint images or parallax images onto the retina simultaneously. Previous SMV NED suffers from a limited depth of field (DOF) due to the fixed image plane. Aperture filtering is widely used to enhance the DOF; however, an invariably sized aperture may have opposite effects on objects with different reconstruction depths. In this paper, a holographic SMV display based on the variable filter aperture is proposed to enhance the DOF. In parallax image acqu

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Clemons, Mellisa R., Ren H. Dimico, Cailyn Black, et al. "The rod synapse in aging wildtype and Dscaml1 mutant mice." PLOS ONE 18, no. 11 (2023): e0290257. http://dx.doi.org/10.1371/journal.pone.0290257.

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The retina is an intricately organized neural tissue built on cone and rod pathways for color and night vision. Genetic mutations that disrupt the proper function of the rod circuit contribute to blinding diseases including retinitis pigmentosa and congenital stationary night blindness (CSNB). Down Syndrome cell adhesion molecule like 1 (Dscaml1) is expressed by rods, rod bipolar cells (RBCs), and sub-populations of amacrine cells, and has been linked to a middle age onset of CSNB in humans. However, how Dscaml1 contributes to this visual deficit remains unexplored. Here, we probed Dscaml1’s r

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Mileusnic, Dusan. "The choice of optimal radiotherapy technique for locally advanced maxillary carcinoma using 3d treatment planning system." Vojnosanitetski pregled 61, no. 2 (2004): 145–54. http://dx.doi.org/10.2298/vsp0402145m.

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Aim. To compare the isodose distribution of three radiotherapy techniques for locally advanced maxillary sinus carcinoma and analyze the potential of three-dimensional (3D) conformal radiotherapy planning in order to determine the optimal technique for target dose delivery, and spare uninvolved healthy tissue structures. Methods. Computed tomography (CT) scans of fourteen patients with T3-T4, N0, M0 maxillary sinus carcinoma were acquired and transferred to 3D treatment planning system (3D-TPS). The target volume and uninvolved dose limiting structures were contoured on axial CT slices through

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Liu, Lin, and Marc M. Van Hulle. "Modeling the Surround of MT Cells and Their Selectivity for Surface Orientation in Depth Specified by Motion." Neural Computation 10, no. 2 (1998): 295–312. http://dx.doi.org/10.1162/089976698300017773.

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The projective transformation onto the retina loses the explicit 3D shape description of a moving object. Theoretical studies show that the reconstruction of 3D shape from 2D motion information (shape from motion, SFM) is feasible provided that the first- and second-order directional derivatives of the 2D velocity field are available. Experimental recordings have revealed that the receptive fields of the majority of the cells in macaque area middle temporal (MT) display an antagonistic (suppressive) surround and that a sizable portion of these surrounds are asymmetrical. This has led to the co

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Shirokanev, Aleksandr, Nataly Ilyasova, Nikita Andriyanov, Evgeniy Zamytskiy, Andrey Zolotarev, and Dmitriy Kirsh. "Modeling of Fundus Laser Exposure for Estimating Safe Laser Coagulation Parameters in the Treatment of Diabetic Retinopathy." Mathematics 9, no. 9 (2021): 967. http://dx.doi.org/10.3390/math9090967.

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A personalized medical approach can make diabetic retinopathy treatment more effective. To select effective methods of treatment, deep analysis and diagnostic data of a patient’s fundus are required. For this purpose, flat optical coherence tomography images are used to restore the three-dimensional structure of the fundus. Heat propagation through this structure is simulated via numerical methods. The article proposes algorithms for smooth segmentation of the retina for 3D model reconstruction and mathematical modeling of laser exposure while considering various parameters. The experiment was

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Chuprov, A. D., A. A. Gorbunov, I. N. Dmitriev, et al. "New model of temporary keratoprosthesis." Russian Journal of Clinical Ophthalmology 25, Special Issue (2025): 123–30. https://doi.org/10.32364/2311-7729-2025-25-suppl-18.

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Aim: to develop a medical device for temporary closure of a surgical wound in the cornea during a reconstructive surgery on the eyeball and to study its physical properties. Materials and Methods: a pilot sample of temporary keratoprosthesis is made of polycarbonate by thermal compression. The body design provided sealing of the surgical wound and reduced a risk of complications. To study the structure, optical microscopy (OlympusCKX-41 microscope) and atomic force microscopy (СMM-2000 AFM microscope) were used. The pilot sample of temporary keratoprosthesis was tested in cadaver pig eyes. Res

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Tribble, James R., Asta Vasalauskaite, Tony Redmond, et al. "Midget retinal ganglion cell dendritic and mitochondrial degeneration is an early feature of human glaucoma." Brain Communications 1, no. 1 (2019). http://dx.doi.org/10.1093/braincomms/fcz035.

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Abstract Glaucoma is characterized by the progressive dysfunction and loss of retinal ganglion cells. However, the earliest degenerative events that occur in human glaucoma are relatively unknown. Work in animal models has demonstrated that retinal ganglion cell dendrites remodel and atrophy prior to the loss of the cell soma. Whether this occurs in human glaucoma has yet to be elucidated. Serial block face scanning electron microscopy is well established as a method to determine neuronal connectivity at high resolution but so far has only been performed in normal retina from animal models. To

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Wu, Ruiheng, Oliver Deussen, Iain D. Couzin, and Liang Li. "Non-invasive eye tracking and retinal view reconstruction in free swimming schooling fish." Communications Biology 7, no. 1 (2024). https://doi.org/10.1038/s42003-024-07322-y.

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AbstractEye tracking has emerged as a key method for understanding how animals process visual information, identifying crucial elements of perception and attention. Traditional fish eye tracking often alters animal behavior due to invasive techniques, while non-invasive methods are limited to either 2D tracking or restricting animals after training. Our study introduces a non-invasive technique for tracking and reconstructing the retinal view of free-swimming fish in a large 3D arena without behavioral training. Using 3D fish bodymeshes reconstructed by DeepShapeKit, our method integrates mult

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Tribble, James R., Elizabeth Kastanaki, A. Berşan Uslular, Carola Rutigliani, Tim J. Enz, and Pete A. Williams. "Valproic Acid Reduces Neuroinflammation to Provide Retinal Ganglion Cell Neuroprotection in the Retina Axotomy Model." Frontiers in Cell and Developmental Biology 10 (May 12, 2022). http://dx.doi.org/10.3389/fcell.2022.903436.

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Neuroinflammation is a critical and targetable pathogenic component of neurodegenerative diseases, including glaucoma, the leading cause of irreversible blindness. Valproic acid has previously been demonstrated to reduce neuroinflammation and is neuroprotective in a number of experimental settings. To determine whether valproic acid can limit retinal neuroinflammation and protect retinal neurons we used an ex vivo retina explant (axotomy) model to isolate resident glial responses from blood-derived monocytes. Neuroinflammatory status was defined using high resolution confocal imaging with 3D m

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Villarreal, DL, D. Schroeder, and WH Krautschneider. "Biomimetic Stimulating Array for Single Localized Stimulation in Visual Prosthesis." October 10, 2017. https://doi.org/10.19070/2572-7389-1700010.

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Visual prostheses electrically stimulate nearby neurons to generate artificial vision in patients blinded by retinal degenerative diseases. Current prosthetic devices offer limited spatial resolution that results in unselective stimulation of ganglion cells and the generation of percepts with shapes other than a small spot of light. In this study, we introduce a theoretical approach to treat the biomimetic retinal electrode array. This array produces electrodes that are self-determined to adjust their spatial parameters for single localized stimulation. Electrode stimulation of the biomimetic

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Li, Jinyan, Yijia Chen, Shuai Ouyang, et al. "Generation and Staging of Human Retinal Organoids Based on Self-Formed Ectodermal Autonomous Multi-Zone System." Frontiers in Cell and Developmental Biology 9 (September 22, 2021). http://dx.doi.org/10.3389/fcell.2021.732382.

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Methods for stem cell-derived, three-dimensional retinal organoids induction have been established and shown great potential for retinal development modeling and drug screening. Herein, we reported an exogenous-factors-free and robust method to generate retinal organoids based on “self-formed ectodermal autonomous multi-zone” (SEAM) system, a two-dimensional induction scheme that can synchronously generate multiple ocular cell lineages. Characterized by distinct morphological changes, the differentiation of the obtained retinal organoids could be staged into the early and late differentiation

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Garmany, Armin, Sepideh Jamali Dogahe, Seyedmostafa Sadegh Mousavi, Tyler M. Kaplan, and Cheryl L. Khanna. "3D facial reconstruction refines 60-4 visual field assessment." British Journal of Ophthalmology, July 8, 2025, bjo—2024–326457. https://doi.org/10.1136/bjo-2024-326457.

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Background This study aimed to provide methodology to create a facial contour-informed normative 60-4 visual field and to apply the reference field to a glaucoma cohort to derive facial contour-informed 60-4 global indices. Methods Participant recruitment was completed at a tertiary medical centre. 60 eyes from 30 participants with no ocular pathology by clinical exam or optical coherence tomography were recruited for the healthy cohort. For the glaucoma cohort, 86 eyes from 43 patients diagnosed with glaucoma by clinical exam were recruited, with 30-2 visual field mean deviation used to strat

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Feu-Basilio, Silvia, Peter M. Maloca, Pascal Hasler, et al. "Retinal vessel volume reference database derived from volume-rendered optical coherence tomography angiography." Scientific Reports 14, no. 1 (2024). http://dx.doi.org/10.1038/s41598-024-53000-8.

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AbstractOptical coherence tomography angiography (OCTA) enables three-dimensional reconstruction of the functional blood vessels in the retina. Therefore, it enables the quantification of 3D retinal vessel parameters such as surface area and vessel volume. In spite of the widespread use of OCTA, no representative volume-rendered vessel volume (VV) data are published to date. In this study, OCTA 3 × 3 mm macular cubes were processed with volume-rendering techniques to measure VV in 203 eyes from 107 healthy volunteers. Generalized linear models (GLM) were constructed to assess the impact of age

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Straight, Parker J., Paul M. Gignac, and Wayne J. Kuenzel. "A histological and diceCT-derived 3D reconstruction of the avian visual thalamofugal pathway." Scientific Reports 14, no. 1 (2024). http://dx.doi.org/10.1038/s41598-024-58788-z.

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AbstractAmniotes feature two principal visual processing systems: the tectofugal and thalamofugal pathways. In most mammals, the thalamofugal pathway predominates, routing retinal afferents through the dorsolateral geniculate complex to the visual cortex. In most birds, the thalamofugal pathway often plays the lesser role with retinal afferents projecting to the principal optic thalami, a complex of several nuclei that resides in the dorsal thalamus. This thalamic complex sends projections to a forebrain structure called the Wulst, the terminus of the thalamofugal visual system. The thalamofug

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Hu, Shisi, Yaoyao Li, Yuanjie Zhang, et al. "The adenosine A2A receptor antagonist KW6002 distinctly regulates retinal ganglion cell morphology during postnatal development and neonatal inflammation." Frontiers in Pharmacology 13 (December 16, 2022). http://dx.doi.org/10.3389/fphar.2022.1082997.

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Adenosine A2A receptors (A2ARs) appear early in the retina during postnatal development, but the roles of the A2ARs in the morphogenesis of distinct types of retinal ganglion cells (RGCs) during postnatal development and neonatal inflammatory response remain undetermined. As the RGCs are rather heterogeneous in morphology and functions in the retina, here we resorted to the Thy1-YFPH transgenic mice and three-dimensional (3D) neuron reconstruction to investigate how A2ARs regulate the morphogenesis of three morphologically distinct types of RGCs (namely Type I, II, III) during postnatal develo

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Makarova, Anastasia A., Nicholas J. Chua, Anna V. Diakova, et al. "The first complete 3D reconstruction and morphofunctional mapping of an insect eye." eLife 14 (May 1, 2025). https://doi.org/10.7554/elife.103247.3.

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The structure of compound eyes in arthropods has been the subject of many studies, revealing important biological principles. Until recently, these studies were constrained by the two-dimensional nature of available ultrastructural data. By taking advantage of the novel three-dimensional ultrastructural dataset obtained using volume electron microscopy, we present the first cellular-level reconstruction of the whole compound eye of an insect, the miniaturized parasitoid wasp Megaphragma viggianii. The compound eye of the female M. viggianii consists of 29 ommatidia and contains 478 cells. Desp

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Glennerster, Andrew. "Understanding 3D vision as a policy network." Philosophical Transactions of the Royal Society B: Biological Sciences 378, no. 1869 (2022). http://dx.doi.org/10.1098/rstb.2021.0448.

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It is often assumed that the brain builds 3D coordinate frames, in retinal coordinates (with binocular disparity giving the third dimension), head-centred, body-centred and world-centred coordinates. This paper questions that assumption and begins to sketch an alternative based on, essentially, a set of reflexes. A ‘policy network’ is a term used in reinforcement learning to describe the set of actions that are generated by an agent depending on its current state. This is an untypical starting point for describing 3D vision, but a policy network can serve as a useful representation both for th

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Rosenberg, Ari, Lowell W. Thompson, Raymond Doudlah, and Ting-Yu Chang. "Neuronal Representations Supporting Three-Dimensional Vision in Nonhuman Primates." Annual Review of Vision Science 9, no. 1 (2023). http://dx.doi.org/10.1146/annurev-vision-111022-123857.

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The visual system must reconstruct the dynamic, three-dimensional (3D) world from ambiguous two-dimensional (2D) retinal images. In this review, we synthesize current literature on how the visual system of nonhuman primates performs this transformation through multiple channels within the classically defined dorsal (where) and ventral (what) pathways. Each of these channels is specialized for processing different 3D features (e.g., the shape, orientation, or motion of objects, or the larger scene structure). Despite the common goal of 3D reconstruction, neurocomputational differences between t

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Pyne, Jeffrey D., Katia Genovese, Luciana Casaletto, and Jonathan P. Vande Geest. "Sequential-Digital Image Correlation for Mapping Human Posterior Sclera and Optic Nerve Head Deformation." Journal of Biomechanical Engineering 136, no. 2 (2014). http://dx.doi.org/10.1115/1.4026224.

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Optic nerve head (ONH) deformations may be involved in the onset or further development of glaucoma, including in patients with relatively normal intraocular pressures (IOPs). Characterizing posterior scleral deformations over physiological pressures may provide a better understanding of how changes in IOP lead to changes in the mechanical environment of the ONH and possibly retinal ganglion cell death. Pressure inflation measurement test protocols are commonly used to measure deformation of the peripapillary sclera with full-field noncontact optical methods. The purpose of this work was to de

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"Modulating synaptogenesis in mouse iPS derived 3D retinal cultures: a strategy to enhance neural circuit reconstruction post-transplantation." Acta Ophthalmologica 95 (September 2017). http://dx.doi.org/10.1111/j.1755-3768.2017.04453.

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Procyk, Christopher A., Jessica Rodgers, Egor Zindy, Robert J. Lucas, and Nina Milosavljevic. "Quantitative characterisation of ipRGCs in retinal degeneration using a computation platform for extracting and reconstructing single neurons in 3D from a multi-colour labeled population." Frontiers in Cellular Neuroscience 16 (November 1, 2022). http://dx.doi.org/10.3389/fncel.2022.1009321.

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Light has a profound impact on mammalian physiology and behavior. Intrinsically photosensitive retinal ganglion cells (ipRGCs) express the photopigment melanopsin, rendering them sensitive to light, and are involved in both image-forming vision and non-image forming responses to light such as circadian photo-entrainment and the pupillary light reflex. Following outer photoreceptor degeneration, the death of rod and cone photoreceptors results in global re-modeling of the remnant neural retina. Although ipRGCs can continue signaling light information to the brain even in advanced stages of dege

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Sawant, Abhilash, Aindrila Saha, Jacob Khoussine, Raunak Sinha, and Mrinalini Hoon. "New insights into retinal circuits through EM connectomics: what we have learnt and what remains to be learned." Frontiers in Ophthalmology 3 (April 20, 2023). http://dx.doi.org/10.3389/fopht.2023.1168548.

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The retinal neural circuit is intricately wired for efficient processing of visual signals. This is well-supported by the specialized connections between retinal neurons at both the functional and ultrastructural levels. Through 3D electron microscopic (EM) reconstructions of retinal neurons and circuits we have learnt much about the specificities of connections within the retinal layers including new insights into how retinal neurons establish connections and perform sophisticated visual computations. This mini-review will summarize the retinal circuitry and provide details about the novel in

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Guedri, Hichem, Jihen Malek, and Hafedh Belmabrouk. "Three-Dimensional Reconstruction of Blood Vessels of the Human Retina by Fractal Interpolation." Journal of Nanotechnology in Engineering and Medicine 6, no. 3 (2015). http://dx.doi.org/10.1115/1.4032170.

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In this work, data from two-dimensional (2D) images of the human retina were taken as a case study. First, the characteristic data points had been removed using the Douglas–Peucker (DP) method, and subsequently, more data points were added using random fractal interpolation approach, to reconstruct a three-dimensional (3D) model of the blood vessel. By visualizing the result, we can see that all the small blood vessels in the human retina are more visible and detailed. This algorithm of 3D reconstruction has the advantage of being fast with calculation time less than 40 s and also can reduce t

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