Abstract：
PURPOSE:The organization of scleral collagen helps to determine the eye's biomechanical response to intraocular pressure (IOP), and may therefore be important in glaucoma. This study provides a quantitative assessment of changes in scleral collagen fibril organization in bead-induced murine experimental glaucoma. METHODS:Wide-angle X-ray scattering was used to study the effect of bead-induced glaucoma on posterior scleral collagen organization in one eye of 12 CD1 mice, with untreated fellow eyes serving as controls. Three collagen parameters were measured: the local preferred fibril directions, the degree of collagen anisotropy, and the total fibrillar collagen content. RESULTS:The mouse sclera featured a largely circumferential orientation of fibrillar collagen with respect to the optic nerve head canal. Localized alteration to fibril orientations was evident in the inferior peripapillary sclera of bead-treated eyes. Collagen anisotropy was significantly (P<0.05) reduced in bead-treated eyes in the superior peripapillary (Treated: 43±8%; CONTROL:49±6%) and midposterior (Treated: 39±4%; CONTROL:43±4%) sclera, and in the peripapillary region overall (Treated: 43±6%; CONTROL:47±3%). No significant differences in total collagen content were found between groups. CONCLUSIONS:Spatial changes in collagen fibril anisotropy occur in the posterior sclera of mice with bead-induced chronic IOP elevation and axonal damage. These results support the idea that dynamic changes in scleral form and structure play a role in the development of experimental glaucoma in mice, and potentially in human glaucoma.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Pijanka JK,Kimball EC,Pease ME,Abass A,Sorensen T,Nguyen TD,Quigley HA,Boote Cdoi
10.1167/iovs.14-15047subject
Has Abstractpub_date
2014-09-16 00:00:00pages
6554-64issue
10eissn
0146-0404issn
1552-5783pii
iovs.14-15047journal_volume
55pub_type
杂志文章abstract：:The rates of corneal penetration and efflux of phenylephrine (PE) and its metabolites were found to be limited by the epithelium. The rate constant for corneal penetration as measured in a lucite block perfusion system was 1.06 X 10(-3) hr-1 when the epithelium was present and 1.25 X 10(-2) hr-1 when the epithelium wa...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1984-01-01 00:00:00
abstract：PURPOSE:To describe the variation in ocular biometry in adult Chinese individuals in Singapore. METHODS:This study was a population-based, cross-sectional survey of adult Chinese persons aged 40 to 81 years residing in Tanjong Pagar district, Singapore. Axial ocular dimensions, including axial length (AL), anterior ch...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：2001-01-01 00:00:00
abstract：PURPOSE:Vascular endothelial growth factor (VEGF) is required for vascular development and for ischemia-related tumor, iris, and retinal neovascularization. The role of VEGF in inflammatory corneal neovascularization is unknown and was investigated in these studies. METHODS:A rat model was used in which removal of the...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：PURPOSE:To evaluate by vector analysis the corneal astigmatic changes occurring in keratoconic corneas during a 3-year follow-up and to determine the relationship between these changes and other clinical changes. METHODS:Keratoconic eyes (n = 114) of 75 patients ranging in age from 14 to 70 years were retrospectively ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章,多中心研究
doi：10.1167/iovs.10-6856
更新日期：2011-06-08 00:00:00
abstract：PURPOSE:To determine whether poor fetal growth, as determined by size at birth, is associated with increased risk of age-related macular degeneration. METHODS:A total of 660 men and women born in Sheffield, United Kingdom, between 1922 and 1930 and whose size at birth was available were traced and invited to take part...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：2002-12-01 00:00:00
abstract：PURPOSE:To determine the mechanism by which basic fibroblast growth factor (bFGF) exerts its neuroprotective effects on degenerating or injured photoreceptors. METHODS:Confocal immunofluorescence microscopy was used to identify sites of bFGF and FGF receptor 1 (FGFR1) expression after focal injury or experimental reti...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：2000-02-01 00:00:00
abstract：PURPOSE:To investigate the involvement of the p38 mitogen-activated protein (MAP) kinase and phosphatidylinositol-3 (PI-3) kinase-Akt signaling pathways after pathologic stimulation by N-methyl-D-aspartate (NMDA) receptors of retinal neurons in vivo. METHODS:NMDA (2-200 nmol), SB203580 (0.2-10 nmol, an inhibitor of p3...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.02-0187
更新日期：2003-01-01 00:00:00
abstract：:Lateral heterophoria at distance often is cited as an index of tonic vergence, yet recent research has shown that vergence in darkness is more convergent than most measures of phoria. Two experiments were conducted to investigate the possible role of accommodation in this discrepancy. Experiment I compared measures of...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1992-08-01 00:00:00
abstract：PURPOSE:Glucocorticoid sensitivity in glaucoma has been attributed to differences in the expression of the two glucocorticoid receptors, GRalpha and GRbeta. GRalpha undergoes steroid-dependent nuclear translocation by associating with a heat shock protein (Hsp)90 multiprotein heterocomplex. The nuclear transport of the...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.05-0697
更新日期：2006-02-01 00:00:00
abstract：PURPOSE:To assess the impact of amblyopia, strabismus and glasses on subjective visual and psychological function among amblyopes. METHODS:Questionnaires were administered to 120 teenagers with amblyopia (cases), with residual amblyopia after treatment, or with or without strabismus and 120 control subjects (controls)...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.05-1365
更新日期：2006-10-01 00:00:00
abstract：PURPOSE:To investigate effects of aging on endothelial nitric oxide synthase (eNOS) expression and signaling in angular aqueous plexus (AAP) (functional equivalent to human Schlemm's canal) cells subjected to shear stress. METHODS:The AAP cells were isolated differentially from porcine outflow tissues using puromycin ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.14-14992
更新日期：2014-11-06 00:00:00
abstract：PURPOSE:Severe ocular allergic diseases are characterized by pronounced conjunctival inflammation triggered by T helper 2 (Th2) cells and corneal epithelial damage induced by eosinophils. To examine the role of alarmins released by damaged corneal epithelial cells in tissue eosinophilia, we investigated the effects of ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.13-11969
更新日期：2013-08-27 00:00:00
abstract：PURPOSE:Mutations in the frizzled-4 gene (FZD4) have recently been associated with autosomal dominant familial exudative vitreoretinopathy (FEVR) in families linking to the EVR1 locus on the long arm of chromosome 11. The purpose of this study was to screen FZD4 in a panel of 40 patients with FEVR to identify the types...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.03-1044
更新日期：2004-07-01 00:00:00
abstract：PURPOSE:To determine whether vascular tone of isolated porcine retinal veins can be modulated by tissue-generated vasoactive factors such as endothelin-1 and adenosine. Such information may be useful in understanding the role of the retinal veins in regulating blood flow, and also provide a model for investigating new ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.15-18358
更新日期：2016-02-01 00:00:00
abstract：PURPOSE:The pathway linking late-life malnutrition to greater risk of cardiovascular disease is unclear. Microcirulatory changes assessed by retinal vascular caliber have been linked with increased risk of stroke and coronary heart disease. The purpose of this study was to examine whether retinal vascular calibers are ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.13-13721
更新日期：2014-05-27 00:00:00
abstract：PURPOSE:To determine the mechanism that leads to the UVA light-dependent loss of glutathione reductase (GR) activity in human lens (HL). METHODS:Both the HL water-soluble (WS) fraction and yeast GR were irradiated with UVA light (200 mW/(cm(2). h) for 1 hour at +20 degrees C, and the specific activity (SA) was observe...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.03-0390
更新日期：2003-09-01 00:00:00
abstract：:Previous research has demonstrated that distinct, gender-related differences exist in the morphology of the rat lacrimal gland. The purpose of the present study was to determine whether this sexual dimorphism is unique to the rat, or extends as well to other species. Lacrimal glands were collected from adult male and ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1985-08-01 00:00:00
abstract：PURPOSE:There is a correlation between cell volume changes and changes in the rate of aqueous humor outflow; agents that decrease trabecular meshwork (TM) cell volume increase the rate of aqueous humor outflow. This study investigated the effects of the nitric oxide (NO)-independent activators of soluble guanylate cycl...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.08-3127
更新日期：2009-07-01 00:00:00
abstract：:The predominant risk factor for the progression of glaucoma is an increase in IOP, mediated via a reduction in aqueous outflow through the conventional (trabecular meshwork and Schlemm's canal) outflow pathway. Current IOP lowering pharmacological strategies target the uveoscleral (nonconventional) outflow pathway or ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章,评审
doi：10.1167/iovs.14-14515
更新日期：2014-08-14 00:00:00
abstract：PURPOSE:To characterize the thickness profile of the corneal epithelium and the Bowman's layer across the horizontal meridian. METHODS:Forty-four eyes of 22 healthy subjects were investigated in this study. Ultra-high resolution anterior segment spectral domain-optical coherence tomography (SD-OCT) was used to assess ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.09-4748
更新日期：2011-06-01 00:00:00
abstract：:The metabolic disorder in diabetics often results in progressive retinopathy with severe visual impairment. Changes in metabolism can influence corneal autofluorescence. This has led to speculation that diabetic retinopathy might be associated with changes in corneal autofluorescence. Corneal autofluorescence of both ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
abstract：PURPOSE:To determine the relationship between optical coherence tomography (OCT) images of the retina and retinal substructure in vitro and in vivo. METHODS:In vitro, OCT images of human and bovine retina were acquired after sequential excimer laser ablation of the inner retinal layers. Measurements of bands in the OC...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1999-09-01 00:00:00
abstract：PURPOSE:Many genome-wide association studies have identified common single nucleotide polymorphisms (SNPs) at the 9p21 glaucoma locus (CDKN2B/CDKN2B-AS1) to be significantly associated with primary open-angle glaucoma (POAG), with association being stronger in normal tension glaucoma (NTG) and advanced glaucoma. We aim...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.16-19401
更新日期：2016-06-01 00:00:00
abstract：PURPOSE:To compare visual evoked potentials (VEPs) and contrast sensitivity in adults with early- or late-onset strabismic amblyopia. METHODS:Twelve adults with early- and 12 with late-onset strabismic amblyopia with similar ranges of visual acuity were studied. Pattern-onset VEPs to 30-minute checks were recorded at ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.02-0240
更新日期：2003-02-01 00:00:00
abstract：PURPOSE:To determine the effect of age on the thickness of individual retinal layers, measured with spectral-domain optical coherence tomography (SD-OCT), in a population of healthy Caucasians. METHODS:One hundred and twenty subjects with an age ranging between 18 and 81 years were examined with SD-OCT. Mean layer thi...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.13-11913
更新日期：2013-07-22 00:00:00
abstract：PURPOSE:To demonstrate the application of multiphoton fluorescence (MF) and second harmonic generation (SHG) microscopy for ex vivo characterization of the structural alterations of human corneas due to keratoconus. METHODS:Buttons of keratoconic corneas derived from penetrating keratoplasty were sent for structural a...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.06-0386
更新日期：2006-12-01 00:00:00
abstract：PURPOSE:To investigate the mechanism of the neuroprotective effects of the angiotensin II type 1 receptor (AT1-R) blocker against retinal ischemia-reperfusion injury in the rat. METHODS:Retinal ischemia was induced by increasing intraocular pressure. Glutamate release from the rat retina and intravitreal PO(2) (partia...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.11-9167
更新日期：2012-06-26 00:00:00
abstract：:Cellular retinol binding protein (CRBP) was localized in the rat retina by means of light and electron microscopic immunocytochemistry. The peroxidase-antiperoxidase (PAP) method employed at the light microscopic level showed that CRBP is sharply localized to the retinal pigment epithelium (RPE). None was detectable i...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1984-08-01 00:00:00
abstract：PURPOSE:Hormone diseases induce changes in the lacrimal gland (LG) and ocular surface (OS). Thyroid hormone (TH) induces cell proliferation and lipid metabolism through the activation of TH receptors. The aim of the present study was to evaluate the location and comparative expression of TH receptor beta-1 (Thrb) in LG...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.06-1309
更新日期：2007-07-01 00:00:00
abstract：Purpose:To assess the feasibility of macular integrity assessment (MAIA) microperimetry (MP) in children. Also to establish representative outcome measures (differential light sensitivity, fixation stability, test-retest reliability) for children without visual impairment. Methods:Thirty-three adults and 33 children (...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.16-20037
更新日期：2016-11-01 00:00:00
