Multifocal electroretinogram with a multiflash stimulation technique in open-angle glaucoma.

Abstract:

PURPOSE:To analyze a multiflash multifocal electroretinogram in 20 patients with open-angle glaucoma (OAG). METHODS:The stimulation sequence consisted of a binary m-sequence (L(max) 200 cd/m(2), L(min) <1 cd/m(2)). Each m-sequence stimulus was followed by three global flashes (luminance: 400 cd/m(2)) at an interval of 26 ms. RESULTS:The presence of a response to the three global flashes indicated an adaptive effect of the response to the preceding m-sequence stimulus. In the nasal retinal response average the relative amplitude contribution of the response to the second global flash in relation to the other two global flash responses was outside the range of normal (10th-90th percentile) in 10 of 20 OAG patients. CONCLUSIONS:The changes in the relative contribution of the response to the second global flash seem indicative of impaired adaptive effects presumably due to inner retinal damage.

journal_name

Ophthalmic Res

journal_title

Ophthalmic research

authors

Palmowski AM,Allgayer R,Heinemann-Vernaleken B,Ruprecht KW

doi

10.1159/000048333

subject

Has Abstract

pub_date

2002-03-01 00:00:00

pages

83-9

issue

2

eissn

0030-3747

issn

1423-0259

pii

48333

journal_volume

34

pub_type

杂志文章
  • Different Phenotypes of Mild Nonproliferative Diabetic Retinopathy with Different Risks for Development of Macular Edema (C-TRACER Study).

    abstract:PURPOSE:To evaluate diabetic retinopathy (DR) progression in patients with diabetes mellitus type 2 in 2 populations of different ethnicity. METHODS:A prospective observational study was designed to follow eyes/patients with mild nonproliferative DR, for 2 years or until the development of central-involved macular ede...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000484666

    authors: Ribeiro L,Pappuru R,Lobo C,Alves D,Cunha-Vaz J

    更新日期:2018-01-01 00:00:00

  • Matrix metalloproteinases and their inhibitors in exfoliation syndrome.

    abstract::The purpose of this study was to determine the expression of metalloproteinases (MMPs) and their tissue inhibitors (TIMPs) in the aqueous humour of patients with exfoliation syndrome (XFS). XFS and control samples were analysed for their MMP content by zymography and for their tissue inhibitors by ELISA. In XFS eyes, ...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000063661

    authors: Gartaganis SP,Georgakopoulos CD,Mela EK,Exarchou A,Ziouti N,Assouti M,Vynios DH

    更新日期:2002-05-01 00:00:00

  • Distribution of glycosyltransferase in bovine eyes.

    abstract::The activities of sialyl-, fucosyl- and galactosyltransferase were measured in membrane preparations from bovine eyes. Radioactive sugars from CMP-N-neuraminic acid, GDP-fucose and UDP-galactose were incorporated into the endogenous and exogenous acceptors. The enzymatic activities of all three glycosyltransferases we...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000267045

    authors: Unoki K,Uehara F,Muramatsu T

    更新日期:1990-01-01 00:00:00

  • A novel approach for subretinal implantation of ultrathin substrates containing stem cell-derived retinal pigment epithelium monolayer.

    abstract:OBJECTIVE:To evaluate the feasibility of a new technique for the implantation of ultrathin substrates containing stem cell-derived retinal pigment epithelium (RPE) cells into the subretinal space of retina-degenerate Royal College of Surgeon (RCS) rats. METHODS:A platform device was used for the implantation of 4-µm-t...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000338749

    authors: Hu Y,Liu L,Lu B,Zhu D,Ribeiro R,Diniz B,Thomas PB,Ahuja AK,Hinton DR,Tai YC,Hikita ST,Johnson LV,Clegg DO,Thomas BB,Humayun MS

    更新日期:2012-01-01 00:00:00

  • Hyperosmolarity and Benzalkonium Chloride Differently Stimulate Inflammatory Markers in Conjunctiva-Derived Epithelial Cells in vitro.

    abstract::Tear hyperosmolarity is known to cause ocular surface inflammation in dry eye syndrome. Benzalkonium chloride (BAK), an eyedrop preservative, is known to induce dry eye in long-term-treated patients. Analyzing the modulation of the proinflammatory potential of hyperosmolarity in the presence of BAK on the conjunctiva ...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000448117

    authors: Warcoin E,Clouzeau C,Roubeix C,Raveu AL,Godefroy D,Riancho L,Baudouin C,Brignole-Baudouin F

    更新日期:2017-01-01 00:00:00

  • The Role of Steroids in the Management of Diabetic Macular Edema.

    abstract::Inflammation is substantially contributing to the development and worsening of diabetic retinopathy in general and diabetic macular edema (DME) in particular, which provides the rationale to treat DME with corticosteroids. While anti-vascular endothelial growth factor (VEGF) agents are mostly chosen as a first-line tr...

    journal_title:Ophthalmic research

    pub_type: 杂志文章,评审

    doi:10.1159/000499540

    authors: Zur D,Iglicki M,Loewenstein A

    更新日期:2019-01-01 00:00:00

  • Heat treatment enhances healing process of experimental pseudomonas corneal ulcer.

    abstract::We investigated the effects of hyperthermia on the healing process of experimental Pseudomonas corneal ulceration (PCU). Hartley guinea pigs were used to develop animal models of PCU. As a heat source, disposable chemical pocket warmers were applied. The healing process of PCU was compared between the heat-treated cor...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000078780

    authors: Nanbu PN,Wakabayashi T,Yamashita R,Hayashi H,Hisano S,Oshika T

    更新日期:2004-07-01 00:00:00

  • Monitoring lens transparency during in vitro incubation by Scheimpflug photography and densitometric image analysis.

    abstract::Dragomirescu et al. [1983] described a 2-chamber flow system for the incubation of lenses with an inserted photometer to measure changes in lens transparency. Mester et al. [1984] applied the method to simulate conditions occurring during vitrectomy, which occasionally leads to reversible lens opacification. Using Sch...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000265357

    authors: Hockwin O,Dragomirescu V,Schwarz B

    更新日期:1985-01-01 00:00:00

  • Preventive effect of antioxidants on lipid peroxidation in the retina.

    abstract::Lipid peroxidation was induced with porcine retinal homogenates using ferric iron or UV light. A number of lipid and aqueous-soluble antioxidants were tested and their protective effects measured after 60 min of exposure. The iron system produced up to 5 times more lipid hydroperoxides as quantified by the fluorescenc...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000267103

    authors: Hiramitsu T,Armstrong D

    更新日期:1991-01-01 00:00:00

  • UV-b-induced cataract model in brown-Norway rat eyes combined with preadministration of buthionine sulfoximine.

    abstract::In order to develop a more adequate ultraviolet (UV)-induced cataract model, a combination of l-buthionine sulfoximine (BSO) treatment was applied to experimental animals. A single administration of BSO 4 mmol/kg caused reduced glutathione concentration until experimental day 8. In the 0.067-J/cm2 UV-B irradiation exp...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000267957

    authors: Hatano T,Kojima M

    更新日期:1996-01-01 00:00:00

  • Effect of pneumatic suction ring placement on intraocular pressure in cats.

    abstract:PURPOSE:To determine the effect of placing a pneumatic suction ring on intraocular pressure (IOP) in the cat and to design an improved method to generate a stable elevation of IOP. METHODS:A pneumatic suction ring was applied to the eye in cats while the IOP was monitored. Three groups of animals (10 per group) were u...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000055680

    authors: Li B

    更新日期:2001-09-01 00:00:00

  • Comparison of intraocular pressure measurements with the digital tonometer TGDc-01 'PRA' and the Goldmann applanation tonometer.

    abstract:BACKGROUND:To compare intraocular pressure (IOP) measurements obtained with the digital tonometer TGDc-01 'PRA' with those from a Goldmann applanation tonometer (GAT). METHODS:The IOP in 176 eyes of 88 healthy volunteers was measured prospectively in a sitting position. One single measurement, generated by the TGDc-01...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000081204

    authors: Meyer MW,Gockeln R,Hoy L,Meyer A,Erb C

    更新日期:2004-09-01 00:00:00

  • Clinical, histological and ultrastructural characteristics of a spontaneous corneal opacity in Sprague-Dawley rats.

    abstract::The eyes of 200 rats (Mol:SPRD, Moellegaard Ltd., Skensvet, Denmark), 8 weeks of age and of both sexes, were examined routinely with a photo-slitlamp microscope (Zeiss) and opthalmoscope (Heine) 3-4 times in the course of four different 12-week toxicity studies. The animals were kept under constant lighting conditions...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000267492

    authors: Wegener A,Jochims K

    更新日期:1994-01-01 00:00:00

  • Photosensory properties of the pineal organ. Microiontophoretic application of excitatory amino acids onto pineal neurons.

    abstract::Extracellular recordings were performed on electrophysiologically identified achromatic neurons of the photosensitive pineal organ of the frog. The effects of iontophoretically applied aspartate and glutamate as well as one aspartate antagonist (D-alpha-aminoadipate) were observed on spontaneous activity and light-evo...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000265304

    authors: Meissl H,George SR

    更新日期:1984-01-01 00:00:00

  • Update of intravitreal steroids for the treatment of diabetic macular edema.

    abstract::Diabetic macular edema is considered the most important factor related to visual impairment in patients with diabetic retinopathy. Together with the use of grid and focal laser photocoagulation, today the intravitreal administration of pharmacotherapies represents the standard of care for the treatment of this complic...

    journal_title:Ophthalmic research

    pub_type: 杂志文章,评审

    doi:10.1159/000362764

    authors: Bandello F,Preziosa C,Querques G,Lattanzio R

    更新日期:2014-01-01 00:00:00

  • Studies on calcium regulation in relation to sodium-potassium balance in the rabbit lens.

    abstract::Net changes in the levels of lens calcium, magnesium, sodium, potassium, and water content were determined following exposure in vitro to iodoacetate, ouabain, lanthanum, cyanide, quercetin and cold temperature. The lens calcium content rose following inhibition of lens metabolism but did not change following specific...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000265197

    authors: Delamere NA,Paterson CA

    更新日期:1982-01-01 00:00:00

  • Characterization of the mechanism of acute ocular irritation to YAG laser capsulotomy in rabbits: effects of substance P antagonists, Met-enkephalin, tetracaine and tetrodotoxin.

    abstract::This study was undertaken to characterize the mechanism of ocular irritation to YAG laser capsulotomy in rabbits. The blocking agents were administered intravitreally. (D-Arg1,D-Pro2,D-Trp7,9)-SP, a substance P antagonist, tended to reduce miosis but had no effect on intraocular pressure (IOP). It had less effect on m...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000266900

    authors: Oksala O,Stjernschantz J,von Dickhoff K

    更新日期:1989-01-01 00:00:00

  • Green tea (Camellia sinensis) protects against selenite-induced oxidative stress in experimental cataractogenesis.

    abstract::Cataract is the leading cause of blindness worldwide. It is a multifactorial disease primarily associated with oxidative stress produced by free radicals. The protection offered by various antioxidants in cataract development is well established. Polyphenolic compounds present in green tea (Camellia sinensis) are repo...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000063881

    authors: Gupta SK,Halder N,Srivastava S,Trivedi D,Joshi S,Varma SD

    更新日期:2002-07-01 00:00:00

  • Prevalence of Amblyopia and Associated Risk Factors in Tibetan Grade One Children.

    abstract:INTRODUCTION:Amblyopia is an important public health problem and standard screening is quite necessary for early diagnosis and treatment especially for the remote areas. As the place of the largest Tibetan population, the Tibetan Plateau has special geographical characteristics such as high altitude, time zone, and eth...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000511264

    authors: Meng Z,Fu J,Chen W,Li L,Su H,Dai W,Yao Y

    更新日期:2020-12-04 00:00:00

  • U83836E inhibits retinal neurodegeneration in early-stage streptozotocin-induced diabetic rats.

    abstract::Oxidative stress plays a role in the pathogenesis of neurodegeneration in diabetic retinopathy (DR). However, whether an excellent reactive oxygen species scavenger, U83836E, inhibits the neurodegeneration in DR remains uncertain. This study is aimed at clarifying the effects of U83836E on DR. Two weeks after streptoz...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000321952

    authors: Wang H,Zheng Z,Gong Y,Zhu B,Xu X

    更新日期:2011-01-01 00:00:00

  • Calf lens alpha-crystallin, a molecular chaperone, builds stable complexes with beta s- and gamma-crystallins.

    abstract::Calf water-soluble (WS) crystallins consist of high-molecular weight (HM), alpha-, beta H-, beta L-, beta s- and gamma-crystallins. alpha-Crystallin as a molecular chaperone forms a structure with a central hole, known as Carver's model. The only crystallins fitting into this central cavity are beta s- and gamma-cryst...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000267939

    authors: Bours J

    更新日期:1996-01-01 00:00:00

  • Development of posterior capsule opacification in the rabbit.

    abstract:PURPOSE:The aim of the present study was to characterize the development of after-cataract in the rabbit by measuring its wet weight, protein, DNA and glycosaminoglycan (GAG) contents and using Scheimpflug and slitlamp analysis. Further, aqueous humor (AqH) leukocytes, protein and lens epithelial cell proliferation act...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000048320

    authors: Wallentin N,Lundgren B,Holmén JB,Lundberg C

    更新日期:2002-01-01 00:00:00

  • A mild progression type of naphthalene-induced cataract in brown-Norway rats.

    abstract::Naphthalene-induced rat cataract is a useful experimental cataract--however, because of its short survival period, studies using this model have been for limited purposes. Based on the consideration that the short survival might be caused by systemic toxicity of an overdose of naphthalene administration (1 g/kg body w...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000267836

    authors: Nagata M,Murano H,Kojima M,Sasaki K

    更新日期:1995-01-01 00:00:00

  • The efficacy of intravitreal povidone iodine application in experimental Staphylococcus epidermidis endophthalmitis.

    abstract:AIM:The aim of the current study is to evaluate the role of povidone iodine (PVI) in the management of experimental bacterial endophthalmitis in young rabbits. METHOD:Twenty white rabbits were used. Colony-forming units (CFU) of Staphylococcus epidermidis were injected intravitreally into the right eye of each animal....

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000217721

    authors: Brozou CG,Karabatakis V,Giannousis M,Mandraveli K,Karkavelas G,Alexiou-Daniel S

    更新日期:2009-01-01 00:00:00

  • A new noncontact tonometer using corneal photoelasticity: porcine eye study.

    abstract:PURPOSE:To propose a new noncontact tonometer based on corneal photoelasticity. METHOD:In this study, we experimented with 18 enucleated porcine eyes. The anterior chamber was infused with a physiological solution. A circular polarizing filter was attached to an ophthalmic surgical microscope. Color fringe changes at ...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000320600

    authors: Hwang H,Kim M,Park C

    更新日期:2011-01-01 00:00:00

  • Effects of L-timolol, D-timolol, haloperidol and domperidone on rabbit retinal blood flow measured with laser Doppler method.

    abstract::L-Timolol (0.4 mg/kg) reduced significantly retinal blood flow (17%), systemic blood pressure (18-20%) and heart rate (28%) in the rabbit. D-Timolol (4.0 mg/kg) increased retinal blood flow slightly (9%) and did not significantly affect systemic blood pressure or heart rate. Since D-timolol is effective in reducing in...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000265470

    authors: Yan HY,Chiou GC

    更新日期:1987-01-01 00:00:00

  • Age-related changes of glyceraldehyde-3-phosphate-dehydrogenase (E.C. 1.2.1.12), 3-phosphoglyceratekinase (E.C. 2.7.2.3), phosphoglyceratemutase (E.C. 2.7.5.3), and enolase (E.C. 4.2.1.11) in bovine lenses.

    abstract::The specific activities of the four investigated enzymes of the carbohydrate metabolism decrease with ageing. In the old tissue, phosphoglyceratemutase and enolase sustain changes in their molecular weight, and their substrate affinity is modified. ...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000265275

    authors: Ohrloff C,Berdjis H,Hockwin O,Bours J

    更新日期:1983-01-01 00:00:00

  • Postmortem evaluation of rabbit aqueous humor partial pressure of carbon dioxide, total carbon dioxide, bicarbonate, partial pressure of oxygen and ionized calcium levels.

    abstract::The aqueous humors of 100 freshly enucleated rabbit eyes were assessed within 10 min postmortem by taking samples in the last stage of corneal dissection following the Dikstein-Maurice procedure. Aqueous levels of partial pressure of carbon dioxide (pCO2) averaged 58.2 +/- 8.5 mm Hg to give calculated tCO2 and bicarbo...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000267269

    authors: Doughty MJ

    更新日期:1993-01-01 00:00:00

  • Direct in vivo measurement of corneal epithelial metabolic activity using a polarographic oxygen sensor.

    abstract::The component oxygen fluxes that constitute a single recording of corneal oxygen uptake when a polarographic oxygen sensor (POS) is placed in contact with the cornea were determined in the in vivo rabbit eye by removing the epithelium and injecting an air bubble into the anterior chamber. The relative contribution of ...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000265369

    authors: Holden BA,Sulonen J,Vannas A,Sweeney DF,Efron N

    更新日期:1985-01-01 00:00:00

  • Evaluation of 2 ex vivo Bovine Cornea Storage Protocols for Drug Delivery Applications.

    abstract::The use of corneal tissue for ex vivo therapeutic evaluations is limited due to its rapid loss of viability after excision. Optimization of storage conditions may allow prolonged retention of physical tissue properties. In this study, we evaluated how storage in optimized organ culture (OC) medium at 37°C or phosphate...

    journal_title:Ophthalmic research

    pub_type: 杂志文章

    doi:10.1159/000493488

    authors: Thakur SS,Shrestha D,Rupenthal ID

    更新日期:2019-01-01 00:00:00