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Glaucoma March 2025

Morphological Comparison of Astrocytes in the Lamina Cribrosa and Glial Lamina

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Susannah Waxman; Hannah Schilpp; Ashley Linton; Tatjana C. Jakobs; Ian A. Sigal
TAGS: astrocytes, language morphology, morphology, mice
Invest. Ophthalmol. Vis. Sci.. 2025; 66(3):1. https://doi.org/10.1167/iovs.66.3.1

Includes: Supplemental Content

Glaucoma November 2024

Proposing a Methodology for Axon-Centric Analysis of IOP-Induced Mechanical Insult

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Manik Bansal; Bingrui Wang; Susannah Waxman; Fuqiang Zhong; Yi Hua; Yuankai Lu; Juan Reynaud; Brad Fortune; Ian A. Sigal
TAGS: axon, body tissue, intraocular pressure, optic disk, volume, reconstructive surgical procedures
Invest. Ophthalmol. Vis. Sci.. 2024; 65(13):1. https://doi.org/10.1167/iovs.65.13.1

Includes: Supplemental Content

ARVO Imaging in the Eye Conference Abstract July 2024

Imaging and photomodulation of lamina cribrosa (LC) microstructure

Po-Yi Lee; Miriam Kunz; Susannah Waxman; Hannah Schilpp; Ian A. Sigal

Invest. Ophthalmol. Vis. Sci.. 2024; 65(9):PP0014.

ARVO Annual Meeting Abstract June 2024

Elevated IOP reduces lamina cribrosa oxygenation both directly through capillary distortion and indirectly by reducing perfusion from the posterior ciliary arteries

Yuankai Lu; Hasan Banna; Hua Yi; Hannah Schilpp; Mingna Liu; Fuqiang Zhong; Bingrui Wang; Andrew theophanous; Shaharoz Tahir; Po-Yi Lee; Joel R Palko; Ian A Sigal

Invest. Ophthalmol. Vis. Sci.. 2024; 65(7):392.

ARVO Annual Meeting Abstract June 2024

Axons passing through small LC pores suffer larger IOP-induced distortions than those through large pores

Bingrui Wang; Susannah Waxman; Sofia Lusvardi; Yuankai Lu; Yingzhe Han; Ashley Ray Linton; Tian Qi; Ian A Sigal

Invest. Ophthalmol. Vis. Sci.. 2024; 65(7):1205.

ARVO Annual Meeting Abstract June 2024

Evaluating the effects of fiber force dissipation for predicting the effects of modulating the mechanical properties of lamina cribrosa and sclera

Yingzhe Han; Bingrui Wang; Xuehuan He; Yuankai Lu; Ian A Sigal

Invest. Ophthalmol. Vis. Sci.. 2024; 65(7):1203.

ARVO Annual Meeting Abstract June 2024

On the Relationship between Forward and Backward Second-Harmonic Generation in Full-Field Images of the Lamina Cribrosa.

Aishwarya Chanady Babu; Ian A Sigal; Brian Vohnsen

Invest. Ophthalmol. Vis. Sci.. 2024; 65(7):3352.

Glaucoma May 2024

The Robust Lamina Cribrosa Vasculature: Perfusion and Oxygenation Under Elevated Intraocular Pressure

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Yuankai Lu; Yi Hua; Bingrui Wang; Fuqiang Zhong; Andrew Theophanous; Shaharoz Tahir; Po-Yi Lee; Ian A. Sigal
TAGS: alveolar ventilation function, cell respiration, compression, perfusion, raised intraocular pressure, vasculature, hemodynamics, vascular flow, optic disk, oxygen
Invest. Ophthalmol. Vis. Sci.. 2024; 65(5):1. https://doi.org/10.1167/iovs.65.5.1

Glaucoma April 2024

Lamina Cribrosa Insertions Into the Sclera Are Sparser, Narrower, and More Slanted in the Anterior Lamina

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Fengting Ji; Mohammad R. Islam; Bingrui Wang; Yi Hua; Ian A. Sigal
TAGS: cercopithecidae, cribriform plate, eye, sclera
Invest. Ophthalmol. Vis. Sci.. 2024; 65(4):35. https://doi.org/10.1167/iovs.65.4.35

ARVO Imaging in the Eye Conference Abstract June 2023

High-resolution dual-modality imaging for collagen fibers and blood vessels in lamina cribrosa (LC) beams

Po-Yi Lee; Susannah Waxman; Hannah Schilpp; Nathan Naylor; Callen Wallace; Simon Watkins; Ian A. Sigal

Invest. Ophthalmol. Vis. Sci.. 2023; 64(9):PP0022.

ARVO Annual Meeting Abstract June 2023

Posterior sclera birefringence is a biomarker for myopia in guinea pigs and humans

Xinyu Liu; Liqin Jiang; Mengyuan Ke; Ian A Sigal; Jacqueline Chua; Quan V Hoang; Chia audrey; Raymond Najjar; Bingyao Tan; Michael J A Girard; Marcus Ang; Veluchamy Amutha Barathi; Seang-Mei Saw; Martin Villiger; Leopold Schmetterer

Invest. Ophthalmol. Vis. Sci.. 2023; 64(8):3837.

ARVO Annual Meeting Abstract June 2023

More peripapillary sclera (PPS) collagen fibers straighten than lamina cribrosa (LC) fibers before reaching 10% bundle stretch

Po-Yi Lee; Gosia Fryc; John Gnalian; Yi Hua; Susannah Waxman; Fuqiang Zhong; Bin Yang; Ian A Sigal

Invest. Ophthalmol. Vis. Sci.. 2023; 64(8):59.

ARVO Annual Meeting Abstract June 2023

Variations in lamina cribrosa insertions into the sclera may contribute to regional differences in neural tissue damage and sensitivity to elevated intraocular pressure

Fengting Ji; Po Lam; Bryn L Brazile; Yi Hua; Ian A Sigal

Invest. Ophthalmol. Vis. Sci.. 2023; 64(8):61.

ARVO Annual Meeting Abstract June 2023

Moderately elevated IOP may alter optic nerve head hemodynamics enough to cause mild hypoxia over a substantial part of the lamina cribrosa

Yuankai Lu; Yi Hua; Bingrui Wang; Fuqiang Zhong; Andrew Theophanous; Shaharoz Tahir; Po-Yi Lee; Ian A Sigal

Invest. Ophthalmol. Vis. Sci.. 2023; 64(8):4732.

ARVO Annual Meeting Abstract June 2023

Longitudinal axon compression as a potential mechanism relating IOP-induced lamina cribrosa (LC) distortion and glaucomatous neural tissue loss

Bingrui Wang; Manik Bansal; Yi Hua; Fuqiang Zhong; Juan Reynaud; Brad Fortune; Ian A Sigal

Invest. Ophthalmol. Vis. Sci.. 2023; 64(8):4362.

ARVO Annual Meeting Abstract June 2023

Astrocyte morphological differences between collagenous and glial lamina

Ian A Sigal; Susannah Waxman

Invest. Ophthalmol. Vis. Sci.. 2023; 64(8):3782.

ARVO Annual Meeting Abstract June 2023

Functional microvascular volume as a proportion of tissue volume is reduced in the RNFL but not the ONH rim at the onset of experimental glaucoma

Michaela Dunn; Juan Reynaud; Grant Cull; Dawn Jennings; Howard Lockwood; Trinity Holthausen; Stuart Keith Gardiner; Ian A Sigal; Claude F Burgoyne; Adriana Di Polo; Brad Fortune

Invest. Ophthalmol. Vis. Sci.. 2023; 64(8):3779.

ARVO Annual Meeting Abstract June 2023

During progression of glaucomatous damage, the rate of functional microvascular tissue loss exceeds loss of non-vascular tissue within the retinal nerve fiber layer, but declines proportionally within the optic nerve head neuroretinal rim

Brad Fortune; Grant Cull; Michaela Dunn; Dawn Jennings; Howard Lockwood; Trinity Holthausen; Stuart Keith Gardiner; Ian A Sigal; Claude Burgoyne; Adriana Di Polo

Invest. Ophthalmol. Vis. Sci.. 2023; 64(8):3784.

ARVO Annual Meeting Abstract June 2023

Astrocyte Branch Tortuosity as a Mechanism to Withstand IOP-related Insult

Susannah Waxman; Bingrui Wang; Brad Fortune; Ian A Sigal

Invest. Ophthalmol. Vis. Sci.. 2023; 64(8):1314.

Glaucoma December 2022

Comparing Acute IOP-Induced Lamina Cribrosa Deformations Premortem and Postmortem

PDF

Junchao Wei; Yi Hua; Bin Yang; Bo Wang; Samantha E. Schmitt; Bingrui Wang; Katie A. Lucy; Hiroshi Ishikawa; Joel S. Schuman; Matthew A. Smith; Gadi Wollstein; Ian A. Sigal
TAGS: autopsy, intraocular pressure, cribriform plate
Trans. Vis. Sci. Tech.. 2022; 11(12):1. https://doi.org/10.1167/tvst.11.12.1

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Morphological Comparison of Astrocytes in the Lamina Cribrosa and Glial Lamina

Proposing a Methodology for Axon-Centric Analysis of IOP-Induced Mechanical Insult

Imaging and photomodulation of lamina cribrosa (LC) microstructure

Elevated IOP reduces lamina cribrosa oxygenation both directly through capillary distortion and indirectly by reducing perfusion from the posterior ciliary arteries

Axons passing through small LC pores suffer larger IOP-induced distortions than those through large pores

Evaluating the effects of fiber force dissipation for predicting the effects of modulating the mechanical properties of lamina cribrosa and sclera

On the Relationship between Forward and Backward Second-Harmonic Generation in Full-Field Images of the Lamina Cribrosa.

The Robust Lamina Cribrosa Vasculature: Perfusion and Oxygenation Under Elevated Intraocular Pressure

Lamina Cribrosa Insertions Into the Sclera Are Sparser, Narrower, and More Slanted in the Anterior Lamina

High-resolution dual-modality imaging for collagen fibers and blood vessels in lamina cribrosa (LC) beams

Posterior sclera birefringence is a biomarker for myopia in guinea pigs and humans

More peripapillary sclera (PPS) collagen fibers straighten than lamina cribrosa (LC) fibers before reaching 10% bundle stretch

Variations in lamina cribrosa insertions into the sclera may contribute to regional differences in neural tissue damage and sensitivity to elevated intraocular pressure

Moderately elevated IOP may alter optic nerve head hemodynamics enough to cause mild hypoxia over a substantial part of the lamina cribrosa

Longitudinal axon compression as a potential mechanism relating IOP-induced lamina cribrosa (LC) distortion and glaucomatous neural tissue loss

Astrocyte morphological differences between collagenous and glial lamina

Functional microvascular volume as a proportion of tissue volume is reduced in the RNFL but not the ONH rim at the onset of experimental glaucoma

During progression of glaucomatous damage, the rate of functional microvascular tissue loss exceeds loss of non-vascular tissue within the retinal nerve fiber layer, but declines proportionally within the optic nerve head neuroretinal rim

Astrocyte Branch Tortuosity as a Mechanism to Withstand IOP-related Insult

Comparing Acute IOP-Induced Lamina Cribrosa Deformations Premortem and Postmortem

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