Abstract：
PURPOSE:Angioscotomas are scotomata caused by vessel shadows. Their extent may be influenced by physiological and pharmacologic conditions and disease. In this study, the authors quantified angioscotomas in normal subjects using a fundus perimetry technique with a scanning laser ophthalmoscope. They further investigated the influence of two different wavelengths on scotoma depth. METHODS:For blue-on-yellow perimetry, the authors used two different lasers--an argon laser (lambda = 458 nm) for stimuli and a low background and a HeNE (lambda = 594 nm) for a superimposed yellow background. For red-on-red perimetry, the authors used another HeNe laser (lambda = 633 nm). Fundus illumination was provided by an infrared light. Five healthy subjects were examined. Twenty-one to 24 stimuli (200 msec duration, 0.4 degree x 0.4 degree) were presented at different intensities in randomized order in a 5 degrees x 2.5 degrees retinal test field, directly inferior and adjacent to the disk. RESULTS:The depth of scotomas caused by major vessels varied in all subjects and depended on perimetry condition. To quantify the influence of vessels on sensitivity, the authors analyzed psychometric functions for stimuli projected on the vessels and for those far from the vessels. The authors found a significant difference for targets on the vessel compared to those far, which was more pronounced for the blue-on-yellow condition. CONCLUSIONS:Angioscotomas are detected better with blue targets on a yellow background than with red-on-red perimetry. The greater light absorption by hemoglobin and oxyhemoglobin at short wavelengths compared to longer wavelengths is not compensated for by visual mechanisms.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Remky A,Beausencourt E,Elsner AEsubject
Has Abstractpub_date
1996-10-01 00:00:00pages
2350-5issue
11eissn
0146-0404issn
1552-5783journal_volume
37pub_type
临床试验,杂志文章,随机对照试验abstract：PURPOSE:Mutations in the genes that control cell proliferation in cutaneous melanoma are generally uncommon in uveal melanoma. Despite the absence of known activating mutations, the RAF-MEK-ERK, or mitogen-activated protein kinase (MAPK), pathway is usually activated in uveal melanoma. An assay with increased potential...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.07-0722
更新日期：2008-01-01 00:00:00
abstract：Purpose:Mutations in CACNA2D4, encoding the α2δ4 subunit of retinal voltage-gated calcium channels (Cav), cause a rare type of retinal dysfunction in human, mainly affecting cone vision. Here, we investigate the role of CACNA2D4 in targeting of Cav, its influence on cone-mediated signal transmission, and the cellular a...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.19-26759
更新日期：2019-12-02 00:00:00
abstract：PURPOSE:To evaluate interictal visual dysfunction in persons with migraine in terms of spatiotemporal selectivity and location within the visual pathways. METHODS:The vision of a group of 15 persons who had experienced migraine with aura was compared with that of 15 normal age-matched control subjects. A range of thre...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：2001-03-01 00:00:00
abstract：PURPOSE:To evaluate the efficacy of a biodegradable scleral plug containing ganciclovir (GCV) in a rabbit model of human cytomegalovirus (HCMV) retinitis. METHODS:To develop a rabbit model for HCMV retinitis, HCMV solution was injected once into the vitreous cavity of pigmented rabbits. The treated animals were divide...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：2001-08-01 00:00:00
abstract：PURPOSE:To relate the oxygen environment of the retina to photoreceptor stability, protection, and function in the P23H rat. METHODS:Heterozygote P23H-3 (Line 3) rats were studied. Photoreceptor death rates were assessed with the TUNEL technique for detection of fragmenting DNA, in a developmental series from postnata...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.03-0845
更新日期：2004-06-01 00:00:00
abstract：Purpose:To assess interocular delays in amblyopes with stereopsis and to evaluate the relationship between interocular delays and the clinical characteristics. Methods:Twenty amblyopes with stereopsis (median, 400 arcseconds) and 20 controls with normal or corrected to normal visual acuity (≤0 logMAR) and normal stere...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.61.3.22
更新日期：2020-03-09 00:00:00
abstract：PURPOSE:To identify stem cells in the chamber angle of the monkey eye by detection of 5-bromo-2'-deoxyuridine (BrdU) long-term retention. METHODS:Four cynomolgus monkeys were treated with BrdU via subcutaneous pumps for 4 weeks. The eyes of two animals were processed immediately thereafter (group 1) while in the other...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.14-14872
更新日期：2014-10-16 00:00:00
abstract：PURPOSE:To investigate macular photoreceptor structure in patients with inherited retinal degeneration using high-resolution images and to correlate the findings with clinical phenotypes and genetic mutations. METHODS:Adaptive optics scanning laser ophthalmoscopy (AOSLO) images of photoreceptors were obtained in 16 ey...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.06-1422
更新日期：2007-07-01 00:00:00
abstract：:The glycosaminoglycans (GAGs) extractable from the trabecular meshworks (TM) of human and non-human primate eye have been analyzed by sequential enzymatic degradation and cellulose acetate electrophoresis. For comparison, similar extracts of the cornea, sclera, iris, and ciliary body have also been analyzed. The distr...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1985-10-01 00:00:00
abstract：PURPOSE:Autoimmune uveitis is a sight-threatening disease in which autoreactive T cells cross the blood-retinal barrier. Molecular mechanisms contributing to the loss of eye immune privilege in this autoimmune disease are not well understood. In this study, the authors investigated the changes in the matrix metalloprot...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.10-6475
更新日期：2011-04-08 00:00:00
abstract：PURPOSE:We investigated the effects of semaphorin 3E (Sema3E)/PlexinD1 signaling in the development of choroidal neovascularization (CNV) and explored the therapeutic potential of the pathway. METHODS:We used a laser-induced CNV model in the mouse. The expression of Sema3E and PlexinD1 was evaluated with immunohistoch...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.14-14087
更新日期：2014-07-01 00:00:00
abstract：PURPOSE:To determine the effect of Latrunculin (LAT)-A, a macrolide that binds to G-actin, which leads to the disassembly of actin filaments, on shape, junctions, and the cytoskeleton of cultured bovine aortic endothelial cells (BAECs) and on outflow facility in living monkeys. METHODS:Latrunculin-A dose-time-response...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1999-04-01 00:00:00
abstract：PURPOSE:To determine whether blur adaptation influences blur sensitivity and blur discrimination thresholds in young adult myopes and emmetropes. In addition, to determine whether there is a differential effect of blur adaptation on blur sensitivity and discrimination between refractive error groups. METHODS:Proximal ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.06-0836
更新日期：2007-06-01 00:00:00
abstract：:The cellular and subcellular distribution of S-100 protein was investigated at the ultrastructural level in the rat retina by the immunocytochemical PAP method. S-100 appeared to be localized in the cytoplasm and nucleus of Müller cells, offering conclusive evidence that in the mammalian retina, the protein is confine...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1983-07-01 00:00:00
abstract：:Herpes simplex virus type 1 (HSV-1) can infect the cornea and achieve ganglionic latency. HSV-1 can later be activated by a variety of effectors although the exact mechanism of reactivation is unknown. Rabbits harboring latent HSV-1 strain McKrae can be induced to shed virus by ocular iontophoresis of epinephrine to t...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1988-03-01 00:00:00
abstract：Purpose:It has been suggested that arteriolar annuli localized in retinal arterioles regulate retinal blood flow acting as sphincters. Here, the morphology and protein expression profile of arteriolar annuli have been analyzed under physiologic conditions in the retina of wild-type, β-actin-Egfp, and Nestin-gfp transge...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.18-25000
更新日期：2019-02-01 00:00:00
abstract：PURPOSE:To investigate the characteristics of retinal nerve fiber layer (RNFL) defects associated with type II diabetes. METHODS:Forty nonglaucomatous eyes with type II diabetes and 54 eyes with early open angle glaucoma that exhibited a localized RNFL defect and 42 eyes from age- and sex-matched nondiabetic, nonglauc...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.16-19525
更新日期：2016-08-01 00:00:00
abstract：:To evaluate the penetration of ciprofloxacin, a new wide-spectrum oral antibiotic, into the vitreous, ciprofloxacin was administered orally to 21 patients who were scheduled to undergo vitreal surgery. Seven patients received 750 mg ciprofloxacin 4 hr before surgery (group I), seven patients received this dose 8 hr be...
journal_title：Investigative ophthalmology & visual science
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1991-07-01 00:00:00
abstract：Purpose:Sjögren syndrome (SS) is an autoimmune disease characterized by the inflammatory destruction of salivary and lacrimal glands (LG). Chloroquine (CQ) was known as an immunomodulatory drug and in the inhibition of autophagy. The purpose of the study is to investigate the effect of CQ on the development of dry eye ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
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更新日期：2019-09-03 00:00:00
abstract：PURPOSE:The production of proinflammatory cytokines and chemokines as well as the surface expression of intercellular adhesion molecule (ICAM)-1 by corneal fibroblasts contribute to corneal inflammation. The effects of triptolide on the expression of these proteins induced by lipopolysaccharide (LPS) in human corneal f...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.06-0319
更新日期：2006-09-01 00:00:00
abstract：Purpose:Candida remains the leading cause of fungal endophthalmitis. However, the pathobiology and innate immune responses in this disease are not well characterized. Here, we developed two murine models of candida endophthalmitis and evaluated their disease susceptibility and differential immune response. Methods:End...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.61.11.31
更新日期：2020-09-01 00:00:00
abstract：:Extraocular muscle represents a distinctive class among mammalian skeletal musculature in exhibiting the full range of muscle fiber type variability found in vertebrate species. To better understand the basis for the unique structural/functional diversity of extraocular muscle, the ontogeny of lateral rectus muscles w...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1992-03-01 00:00:00
abstract：PURPOSE:To determine the consequences of expression of a novel connexin50 (CX50) mutant identified in a child with congenital total cataracts. METHODS:The GJA8 gene was directly sequenced. Formation of functional channels was assessed by the two-microelectrode voltage-clamp METHOD:Connexin protein levels and distribu...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.09-3759
更新日期：2009-12-01 00:00:00
abstract：PURPOSE:To investigate functional interactions between the phosphatidylinositol 3-kinase (PI3K)/Akt pathway and the nuclear factor erythroid 2-related factor 2 (Nrf2)-dependent antioxidant system in cultured human retinal pigment epithelium (RPE) cells. METHODS:Cultured ARPE-19 cells were treated with different concen...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.07-1099
更新日期：2008-04-01 00:00:00
abstract：PURPOSE:Lectin studies have shown that in the rabbit corneal epithelium, alpha-2,3 sialylation of O-linked glycans differentiates limbal and corneal epithelial cell phenotypes. Because sialic acid can be regulated at the level of the expression of sialyltransferases (STs), the purpose of the present study was to analyz...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1998-05-01 00:00:00
abstract：PURPOSE:To examine the extent to which the two major determinants of refractive error, corneal curvature and axial length, are scaled relative to one another by shared genetic variants, along with their relationship to the genetic scaling of height. METHODS:Corneal curvature, axial length, and height were measured in ...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.12-10560
更新日期：2013-03-07 00:00:00
abstract：:In the tree shrew retina individual rod and cone photoreceptors can be readily identified and quantified because their perikarya are arranged in a single layer. This retina is therefore an ideal system for testing the specificity of photoreceptor-directed antibodies. Here we describe the staining properties of polyclo...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：1989-03-01 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 investigate morphological characteristics of optic nerve head and peripapillary region with myopia and glaucoma. METHODS:Ten normal and 17 glaucomatous myopic participants were imaged with a custom 1060-nm swept-source optical coherence tomography system. The three-dimensional images were processed and segm...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：10.1167/iovs.14-14227
更新日期：2014-06-03 00:00:00
abstract：PURPOSE:Vergence eye movements undergo adaptive recalibration in response to a training stimulus in which the initial disparity is changed just after vergence begins (the double-step paradigm). In the present study the changes in the dynamic properties of convergence, speed and acceleration, were examined by using this...
journal_title：Investigative ophthalmology & visual science
pub_type： 杂志文章
doi：
更新日期：2001-06-01 00:00:00
