Psychophysical investigations of the temporal modulation sensitivity function in amblyopia: uniform field flicker.

Abstract:

:The temporal modulation sensitivity function was studied in eight strabismic and/or anisometropic amblyopes and in two subjects with amblyopia resulting from monocular stimulus deprivation (cataract and ptosis). Half of the strabismic/anisometropic amblyopes showed a reduction in the sensitivity of the amblyopic eye. These differences were more marked at low and middle temporal frequencies. Two strabismic/anisometropic observers showed little difference in sensitivity between the two eyes, but in the remaining two observers the amblyopic eye was slightly more sensitive to low-frequency modulation than was the nonamblyopic eye. Four of the strabismic/anisometropic amblyopes also showed a small (5% to 10%) but statistically significant difference in the critical fusion frequency, with the sensitivity of the amblyopic eye being reduced. These differences in sensitivity were not related to the visual acuity loss. However, all differences in sensitivity between the two eyes were reduced or eliminated when the mean luminance of the test field was decreased by 2 log units form 32 to 0.32 cd/m2, or with suprathreshold stimulation. One of the two stimulus-deprivation amblyopes showed a decrease in sensitivity to low and middle temporal modulation frequencies similar to that found in four of in sensitivity to low and middle temporal modulation frequencies similar to similar to that found in four of the strabismic/anisometropic amblyopes, and the other observer showed a marked decrease in sensitivity at all temporal frequencies. The losses in temporal resolution of the amblyopic eye in both strabismic/anisometropic and stimulus-deprivation amblyopia are small in comparison with those reported in the spatial domain.

authors

Manny RE,Levi DM

subject

Has Abstract

pub_date

1982-04-01 00:00:00

pages

515-24

issue

4

eissn

0146-0404

issn

1552-5783

journal_volume

22

pub_type

杂志文章
  • [3H]ouabain localization of Na-K ATPase in the epithelium of rabbit ciliary body pars plicata.

    abstract::The secretion of the aqueous humor has been proposed to occur as the result of active Na+ transport by a ouabain-sensitive Na-K ATPase. We have examined the localization of this enzyme in the epithelium of rabbit ciliary body pars plicata using [3H]ouabain autoradiography. Single ciliary processes were isolated and in...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Usukura J,Fain GL,Bok D

    更新日期:1988-04-01 00:00:00

  • CXCR4 and CXCR7 Mediate TFF3-Induced Cell Migration Independently From the ERK1/2 Signaling Pathway.

    abstract:PURPOSE:Trefoil factor family (TFF) peptides, and in particular TFF3, are characteristic secretory products of mucous epithelia that promote antiapoptosis, epithelial migration, restitution, and wound healing. For a long time, a receptor for TFF3 had not yet been identified. However, the chemokine receptor CXCR4 has be...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.15-18129

    authors: Dieckow J,Brandt W,Hattermann K,Schob S,Schulze U,Mentlein R,Ackermann P,Sel S,Paulsen FP

    更新日期:2016-01-01 00:00:00

  • Ku80 Counters Oxidative Stress-Induced DNA Damage and Cataract Formation in the Human Lens.

    abstract:PURPOSE:Oxidative stress in the human lens leads to a wide range of damage including DNA strand breaks, which are likely to contribute to cataract formation. The protein Ku80 is a fundamental component of the nonhomologous end-joining pathway that repairs DNA double strand breaks. This study investigates the putative i...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.15-18309

    authors: Smith AJ,Ball SS,Manzar K,Bowater RP,Wormstone IM

    更新日期:2015-12-01 00:00:00

  • Behavior of SD-OCT-detected hyperreflective foci in the retina of anti-VEGF-treated patients with diabetic macular edema.

    abstract:PURPOSE:Hyperreflective foci (HFs) are observable within the neurosensory retina in diabetic macular edema (DME) using spectral domain optical coherence tomography (SD-OCT). HFs have also been seen in wet age-related macular degeneration (AMD), although the origin is still unknown; however, they reduced significantly d...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.12-9950

    authors: Framme C,Schweizer P,Imesch M,Wolf S,Wolf-Schnurrbusch U

    更新日期:2012-08-24 00:00:00

  • Local and Systemic Inflammatory Biomarkers of Diabetic Retinopathy: An Integrative Approach.

    abstract:Purpose:To review the usefulness of local and systemic inflammatory biomarkers of diabetic retinopathy (DR) to implement a more personalized treatment. Methods:An integrated research (from ophthalmologist and diabetologist point of view) of most significant literature on serum, vitreous, and aqueous humor (AH) biochem...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章,评审

    doi:10.1167/iovs.17-21769

    authors: Vujosevic S,Simó R

    更新日期:2017-05-01 00:00:00

  • Vascular wall von Willebrand factor in human diabetic retinopathy.

    abstract:PURPOSE:To reconstruct the role played by vascular endothelium in the elevation of circulating von Willebrand factor (vWf) in diabetic patients with microangiopathy and, specifically, to determine whether storage and synthesis of vWf is altered in diabetic retinal vessels. METHODS:Trypsin digests were prepared from re...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Boeri D,Cagliero E,Podestá F,Lorenzi M

    更新日期:1994-02-01 00:00:00

  • Glaucoma-associated CYP1B1 mutations share similar haplotype backgrounds in POAG and PACG phenotypes.

    abstract:PURPOSE:To understand the involvement of the CYP1B1 gene in cases of primary open-angle (POAG) and primary angle-closure (PACG) glaucomas and obtain the haplotype background of these mutations. METHODS:The entire coding region of CYP1B1 was screened by resequencing in 224 unrelated cases of POAG (n = 134) and PACG (n ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.07-0629

    authors: Chakrabarti S,Devi KR,Komatireddy S,Kaur K,Parikh RS,Mandal AK,Chandrasekhar G,Thomas R

    更新日期:2007-12-01 00:00:00

  • Dose-related effects of prostaglandin F2 alpha isopropylester on intraocular pressure, refraction, and pupil diameter in monkeys.

    abstract::Topical application of Prostaglandin F2 alpha (PGF2 alpha) to the eye reduces intraocular pressure (IOP) in all mammalian species studied thus far, including humans. The L-isopropylester derivative is currently the one most commonly used in experimental and clinical studies. Dose-response relationships were determined...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Crawford KS,Kaufman PL

    更新日期:1991-03-01 00:00:00

  • Decrease in rate of myopia progression with a contact lens designed to reduce relative peripheral hyperopia: one-year results.

    abstract:PURPOSE:To determine whether a novel optical treatment using contact lenses to reduce relative peripheral hyperopia can slow the rate of progress of myopia. METHODS:Chinese children, aged 7 to 14 years, with baseline myopia from sphere -0.75 to -3.50 D and cylinder ≤1.00 D, were fitted with novel contact lenses (n = 4...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章,随机对照试验

    doi:10.1167/iovs.11-7260

    authors: Sankaridurg P,Holden B,Smith E 3rd,Naduvilath T,Chen X,de la Jara PL,Martinez A,Kwan J,Ho A,Frick K,Ge J

    更新日期:2011-12-09 00:00:00

  • Improved interpretation of flow maps obtained by scanning laser Doppler flowmetry using a rat model of retinal artery occlusion.

    abstract:PURPOSE:To improve the interpretation of Heidelberg Retina Flowmeter (HRF; Heidelberg Engineering GmBH, Dosselheim, Germany) flow maps by examining the influence of specific vascular structures and focus depth in the presence and absence of retinal blood flow. METHODS:HRF flow maps were recorded from the inferior reti...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.04-0772

    authors: Yu DY,Townsend R,Cringle SJ,Chauhan BC,Morgan WH

    更新日期:2005-01-01 00:00:00

  • Neural network classification of corneal topography. Preliminary demonstration.

    abstract:PURPOSE:Videokeratography is a powerful tool for the diagnosis of corneal shape abnormalities. However, interpretation of the topographic map is sometimes difficult, especially when pathologies with similar topographic patterns are suspected. The neural networks model, an artificial intelligence approach, was applied f...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Maeda N,Klyce SD,Smolek MK

    更新日期:1995-06-01 00:00:00

  • Retaining clinician-scientists: nature versus nurture.

    abstract::In their IOVS article "Rejuvenating Clinician-Scientist Training" (published March 28, 2014), Balamurali Ambati and Judd Cahoon rightly point out the dearth of new clinician-scientists in ophthalmology. Within the context of their suggestions for increasing the number of successful clinician-scientists, they claim tha...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章,评审

    doi:10.1167/iovs.14-14605

    authors: Culican SM,Rupp JD,Margolis TP

    更新日期:2014-05-27 00:00:00

  • SDS-Minigel electrophoresis of human tears. Effect of sample treatment on protein patterns.

    abstract::An automated Minigel electrophoresis system (PhastSystem, Pharmacia, Uppsala, Sweden) was tested for human tear protein analysis. Tear samples were treated under nonreducing or reducing conditions before sodium dodecyl sulphate polyacryl amide gel electrophoresis (SDS-PAGE). Micro-amounts of tears (2 microliters) were...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Kuizenga A,van Haeringen NJ,Kijlstra A

    更新日期:1991-02-01 00:00:00

  • Enzymatic breakdown of type II collagen in the human vitreous.

    abstract:PURPOSE:To investigate whether enzymatic collagen breakdown is an active process in the human vitreous. METHODS:Human donor eyes were used for immunohistochemistry to detect the possible presence of the matrix metalloproteinase (MMP)-induced type II collagen breakdown product col2-3/4C-short in the vitreous. Western b...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.08-3125

    authors: van Deemter M,Pas HH,Kuijer R,van der Worp RJ,Hooymans JM,Los LI

    更新日期:2009-10-01 00:00:00

  • Directed Differentiation of Human Corneal Endothelial Cells From Human Embryonic Stem Cells by Using Cell-Conditioned Culture Media.

    abstract:Purpose:A shortage of human corneal endothelial cells (HCEC) for transplant and current methods of differentiation induction require chemical compounds, which might cast further influences after differentiation induction. Therefore, we developed a simple and straightforward approach to endothelial cell differentiation ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.17-23627

    authors: Chen X,Wu L,Li Z,Dong Y,Pei X,Huang Y,Wang L

    更新日期:2018-06-01 00:00:00

  • Transiently raised intraocular pressure reveals pattern electroretinogram losses in ocular hypertension.

    abstract:PURPOSE:It is known that the pattern electroretinogram (PERG) of normal subjects is reduced temporarily after short-term elevation of intraocular pressure (IOP). The authors evaluated PERG changes in ocular hypertension during and after transient IOP elevation. METHODS:Steady state (8 Hz) PERGs to sinusoidal gratings ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Colotto A,Falsini B,Salgarello T,Buzzonetti L,Cermola S,Porrello G

    更新日期:1996-12-01 00:00:00

  • Loss of the low-frequency component of the global-flash multifocal electroretinogram in primate eyes with experimental glaucoma.

    abstract:PURPOSE:To study relationships between glaucoma-sensitive components identified with frequency-domain analysis of global-flash multifocal electroretinogram (mfERG), regional retinal nerve fiber layer thickness (RNFLT), and local visual field sensitivity (VS). METHODS:Eleven macaque monkeys, including four controls and...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.10-6667

    authors: Luo X,Patel NB,Harwerth RS,Frishman LJ

    更新日期:2011-06-01 00:00:00

  • Quantitative analysis of retinal ganglion cell survival with Rbpms immunolabeling in animal models of optic neuropathies.

    abstract:PURPOSE:To investigate whether a recently described retinal ganglion cell (RGC) marker Rbpms (RNA binding protein with multiple splicing) could be used for RGC quantification in various models of RGC degeneration. METHODS:Optic nerve crush, excitotoxicity, and elevated intraocular pressure (IOP) rat models were used. ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.11-7869

    authors: Kwong JM,Quan A,Kyung H,Piri N,Caprioli J

    更新日期:2011-12-28 00:00:00

  • Scene perception in age-related macular degeneration.

    abstract:PURPOSE:To assess the scene gist recognition in eyes with age-related macular degeneration (AMD) and to study the relationship between scene recognition and macular function. METHODS:Twenty-seven patients with age-related macular degeneration with a visual acuity lower than 20/50 and 17 age-matched controls were inclu...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.10-5517

    authors: Tran TH,Rambaud C,Despretz P,Boucart M

    更新日期:2010-12-01 00:00:00

  • Association between polymorphisms of complement pathway genes and age-related macular degeneration in a Chinese population.

    abstract:PURPOSE:We assessed the association between complement pathway genes and age-related macular degeneration (AMD) in a Chinese population. METHODS:In a case-control study, 165 AMD patients and 216 unrelated controls were recruited from two hospitals in central China. We selected and genotyped six single nucleotide poly...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.12-10453

    authors: Wu L,Tao Q,Chen W,Wang Z,Song Y,Sheng S,Li P,Zhou J

    更新日期:2013-01-07 00:00:00

  • Ultrastructural changes associated with dexamethasone-induced ocular hypertension in mice.

    abstract:PURPOSE:To determine whether dexamethasone (DEX)-induced ocular hypertension (OHT) in mice mimics the hallmarks of steroid-induced glaucoma (SIG) in humans, including reduced conventional outflow facility (C), increased extracellular matrix (ECM), and myofibroblasts within the outflow pathway. METHODS:Osmotic mini-pum...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.14-14429

    authors: Overby DR,Bertrand J,Tektas OY,Boussommier-Calleja A,Schicht M,Ethier CR,Woodward DF,Stamer WD,Lütjen-Drecoll E

    更新日期:2014-07-15 00:00:00

  • The aging Meibomian gland: an in vivo confocal study.

    abstract:PURPOSE:To evaluate age-related Meibomian gland (MG) changes by in vivo laser scanning confocal microscopy (LSCM). METHODS:Asymptomatic healthy subjects (n=100, age range 20-83 years) with an Ocular Surface Disease Index score of less than 13 were consecutively enrolled. Two additional groups, one composed of subjects...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.13-11914

    authors: Villani E,Canton V,Magnani F,Viola F,Nucci P,Ratiglia R

    更新日期:2013-07-16 00:00:00

  • Abnormal Tuning in Nucleus Prepositus Hypoglossi of Monkeys With "A" Pattern Exotropia.

    abstract:Purpose:In many individuals with pattern strabismus, the vertical misalignment varies with horizontal eye position. It has been proposed that these cross-axis effects result from abnormal cross-talk between brainstem structures that would normally encode horizontal and vertical eye position and velocity. The nucleus pr...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.61.5.45

    authors: Pallus A,Walton MMG

    更新日期:2020-05-11 00:00:00

  • Autophagy and Macropinocytosis: Keeping an Eye on the Corneal/Limbal Epithelia.

    abstract::Autophagy and macropinocytosis are processes that are vital for cellular homeostasis, and help cells respond to stress and take up large amounts of material, respectively. The limbal and corneal epithelia have the machinery necessary to carry out both processes; however, autophagy and macropinocytosis are relatively u...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章,评审

    doi:10.1167/iovs.16-21111

    authors: Peng H,Park JK,Lavker RM

    更新日期:2017-01-01 00:00:00

  • A longitudinal study of the relationship between intraocular and blood pressures.

    abstract::The relationship between intraocular and systemic blood pressures was investigated in a prospective study of 572 middle-aged men. There was no consistent relationship between intraocular pressure at first visit and age. Subjects with an intraocular pressure greater than 20 mm Hg had a significantly higher systolic blo...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: McLeod SD,West SK,Quigley HA,Fozard JL

    更新日期:1990-11-01 00:00:00

  • Inhibition of TNF-alpha-induced sickle RBC retention in retina by a VLA-4 antagonist.

    abstract:PURPOSE:Patients with sickle cell disease have elevated circulating levels of cytokines including tumor necrosis factor (TNF) alpha. TNF-alpha stimulates expression by endothelial cells of adhesion molecules, including vascular cell adhesion molecule (VCAM) 1. Others have demonstrated that VLA-4 (alpha(4)beta(1)), a li...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Lutty GA,Taomoto M,Cao J,McLeod DS,Vanderslice P,McIntyre BW,Fabry ME,Nagel RL

    更新日期:2001-05-01 00:00:00

  • Nicotinamide Deficiency in Primary Open-Angle Glaucoma.

    abstract:Purpose:To investigate the plasma concentration of nicotinamide in primary open-angle glaucoma (POAG). Methods:Plasma of 34 POAG individuals was compared to that of 30 age- and sex-matched controls using a semiquantitative method based on liquid chromatography coupled to high-resolution mass spectrometry. Subsequently...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.19-27099

    authors: Kouassi Nzoughet J,Chao de la Barca JM,Guehlouz K,Leruez S,Coulbault L,Allouche S,Bocca C,Muller J,Amati-Bonneau P,Gohier P,Bonneau D,Simard G,Milea D,Lenaers G,Procaccio V,Reynier P

    更新日期:2019-06-03 00:00:00

  • Gene expression in human accessory lacrimal glands of Wolfring.

    abstract:PURPOSE:The accessory lacrimal glands are assumed to contribute to the production of tear fluid, but little is known about their function. The goal of this study was to conduct an analysis of gene expression by glands of Wolfring that would provide a more complete picture of the function of these glands. METHODS:Gland...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.12-10750

    authors: Ubels JL,Gipson IK,Spurr-Michaud SJ,Tisdale AS,Van Dyken RE,Hatton MP

    更新日期:2012-10-01 00:00:00

  • Variation in the Three-Dimensional Histomorphometry of the Normal Human Optic Nerve Head With Age and Race: Lamina Cribrosa and Peripapillary Scleral Thickness and Position.

    abstract:Purpose:This study quantified the thickness and depth of the lamina cribrosa (LC) and peripapillary scleral thickness in high-resolution three-dimensional (3D) fluorescent reconstructions of the optic nerve head (ONH) in eyes from donors of African (AD) and European descent (ED). Methods:A total of 64 eyes (45 ED, 19 ...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:10.1167/iovs.17-21842

    authors: Girkin CA,Fazio MA,Yang H,Reynaud J,Burgoyne CF,Smith B,Wang L,Downs JC

    更新日期:2017-07-01 00:00:00

  • Absence of degenerative changes in retinal and uveal capillary pericytes in diabetic rats.

    abstract::Ultrastructural morphometric techniques were used to quantify pericyte degeneration in retinal and uveal capillaries of streptozotocin-diabetic rats in order to assess the suitability of this small rodent model of diabetes for studies of the pathogenesis of microvascular eye disease in diabetic humans. Male, Sprague-D...

    journal_title:Investigative ophthalmology & visual science

    pub_type: 杂志文章

    doi:

    authors: Tilton RG,LaRose LS,Kilo C,Williamson JR

    更新日期:1986-05-01 00:00:00