Abstract:
PURPOSE:To determine the within-trial and between-trial repeatability of pattern electroretinogram (PERG) measurements in healthy and patient eyes, using a new clinical instrument, the PERGLA. STUDY DESIGN:In all, 70 eyes of 35 healthy individuals (intraocular pressure <22 mm Hg, healthy optic disc by stereophotograph assessment, standard visual fields within normal limits) and 90 eyes of 45 clinic patients (ocular hypertensive, glaucomatous optic neuropathy by stereophotograph assessment and/or repeatable abnormal visual fields) enrolled in the University of California, San Diego Diagnostic Innovations in Glaucoma Study (DIGS) were evaluated. Average mean deviation of patient eyes on standard automated perimetry was -1.81 dB (SD=2.61). METHODS:The PERG was recorded using the PERGLA paradigm from both eyes simultaneously twice (ie, 2 trials) by a single operator with electrodes being removed and reattached between recordings. Repeatability of PERG amplitude (microV) and phase (pi rad) between 2 runs within a single trial (within-trial condition) was compared with repeatability between 2 trials (ie, after electrode replacement, between-trial condition) by calculating the coefficients of variability (CVs) and the intraclass correlation coefficients (ICCs) and displaying Bland-Altman plots. RESULTS:For healthy eyes, amplitude CVs (SD) were 11.5% (11.5) and 9.9% (0.79) for within-trial and between-trial conditions, respectively. ICCs were 0.91 and 0.85. Phase CVs were 1.3% (1.5) (within-trials) and 1.5% (1.4) (between-trials) and ICCs were 0.85 and 0.88. For patient eyes, amplitude CVs (SD) were 12.2% (10.1) and 11.2% (7.5) for within-trial and between-trial conditions, respectively. ICCs were 0.92 and 0.89. Phase CVs were 2.2% (2.2) (within-trials) and 2.4% (2.2) (between-trials) and ICCs were 0.82 and 0.83. Bland-Altman plots indicated good agreement between the repeated recordings and were similar within-trials and between-trials for healthy and patient eyes. CONCLUSIONS:Repeatability of PERGLA recordings is good and is similar within-trials and between-trials for both healthy and patient eyes suggesting this technique is promising for monitoring change over time.
journal_name
J Glaucomajournal_title
Journal of glaucomaauthors
Bowd C,Tafreshi A,Vizzeri G,Zangwill LM,Sample PA,Weinreb RNdoi
10.1097/IJG.0b013e31818c6f44subject
Has Abstractpub_date
2009-08-01 00:00:00pages
437-42issue
6eissn
1057-0829issn
1536-481Xpii
00061198-200908000-00003journal_volume
18pub_type
临床试验,杂志文章abstract:PURPOSE:The GDx is a scanning laser polarimeter that assesses peripapillary nerve fiber layer thickness. In addition to the 14 existing outcome parameters, four new parameters have been described recently: the Ellipse Standard Deviation (ESD), the Normalized Superior Area (NSA), the Normalized Inferior Area (NIA) and t...
journal_title:Journal of glaucoma
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00061198-200402000-00006
更新日期:2004-02-01 00:00:00
abstract:PURPOSE:To examine the effect of the myopic optical defocus on the Humphrey Matrix 30-2 test. DESIGN:Prospective, nonrandomized, comparative case series. METHODS:Forty eyes from 40 patients with and without glaucoma underwent 2 consecutive tests using the Humphrey Matrix 30-2 threshold program. The first and second t...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0b013e3181b21ef6
更新日期:2010-04-01 00:00:00
abstract:PURPOSE:To compare the results of frequency-doubling technology perimetry (FDT), assumed to test the magnocellular visual pathway, and high-pass resolution perimetry (HRP), assumed to test the parvocellular visual pathway, in patients with ocular hypertension or glaucoma. PATIENTS AND METHODS:Forty-eight consecutive p...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/00061198-200302000-00008
更新日期:2003-02-01 00:00:00
abstract:PURPOSE:To evaluate the efficacy of selective laser trabeculoplasty (SLT) versus argon laser trabeculoplasty (ALT) in lowering the intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension secondary to pseudoexfoliation. DESIGN:Multicentered randomized clinical trial. PARTICIPANTS:A total...
journal_title:Journal of glaucoma
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1097/IJG.0b013e31829e55e4
更新日期:2015-06-01 00:00:00
abstract:PURPOSE:To determine the risk factors for hyphema after trabeculectomy with mitomycin C (MMC). PATIENTS AND METHODS:In total, 420 patients (420 eyes) with glaucoma who underwent trabeculectomy with MMC between June 1, 2005 and December 31, 2010 at Kumamoto University Hospital, Japan, were retrospectively evaluated. Hy...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0b013e3182741c85
更新日期:2014-06-01 00:00:00
abstract:PURPOSE:To evaluate the reproducibility of retinal nerve fiber layer (RNFL) thickness measurements in normal and glaucoma patients using the spectral optical coherence tomography (OCT)/scanning laser ophthalmosope (SLO). METHODS:One experienced operator measured peripapillary RNFL thickness 3 times in succession in 98...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0b013e3181ca7cbe
更新日期:2010-12-01 00:00:00
abstract:AIMS:To compare the retinal nerve fiber layer thickness (RNFLT) parameters obtained with newly introduced GDx with enhanced corneal compensation (ECC) and those with GDx with variable corneal compensation (VCC) and to evaluate their reproducibility and the correspondence with visual field damage (VFD) in total or secto...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0b013e318133fb47
更新日期:2008-01-01 00:00:00
abstract:PURPOSE:To clarify the mechanism by which bunazosin hydrochloride (BZ), a selective alpha1-adrenoceptor antagonist, increases uveoscleral outflow. METHODS:The effects of BZ on matrix metalloproteinase (MMP) activities in cultured monkey ciliary muscle cells, and on phenylephrine hydrochloride-induced constriction in b...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/00061198-200408000-00009
更新日期:2004-08-01 00:00:00
abstract:PURPOSE:To report a case of an angle-closure glaucoma in a patient with Miller Fisher syndrome (MFS) without pupillary dysfunction. METHODS:We present a case report of a 75-year-old male presenting with total ophthalmoplegia, complete bilateral ptosis, and gait disturbance. He was diagnosed with MFS without pupillary ...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000000191
更新日期:2015-02-01 00:00:00
abstract::Our purpose is to document the first case of unilateral mild corneal ectasia developed in an apparently nonpredisposed cornea after topical latanoprost treatment, and its regression after treatment withdrawal. We describe a 44-year-old man with visual impairment in his left eye (OS) and a past medical history of myopi...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000001660
更新日期:2020-12-01 00:00:00
abstract::Glaucoma is a progressive optic neuropathy that is the leading cause of irreversible blindness in the world. Although methods to lower intraocular pressure are the mainstay of glaucoma therapy, there are currently no available treatment modalities targeted at neuroprotection. Erythropoietin is a hematopoietic cytokine...
journal_title:Journal of glaucoma
pub_type: 杂志文章,评审
doi:10.1097/IJG.0b013e318156a556
更新日期:2007-09-01 00:00:00
abstract:PURPOSE:To evaluate the effect of a latanoprost/timolol fixed combination (LTFC) versus a latanoprost and timolol gel-forming solution unfixed combination (LTuFC) on daytime intraocular pressure (IOP) levels and fluctuations. METHODS:This was an 8-week, randomized, parallel-group study. Ninety eyes of 90 patients diag...
journal_title:Journal of glaucoma
pub_type: 杂志文章,随机对照试验
doi:10.1097/IJG.0000000000000170
更新日期:2016-02-01 00:00:00
abstract:PURPOSE:The purpose of this study is to describe the outcomes of mitomycin C (MMC)-augmented trabeculectomy performed following a failed MMC-augmented XEN-45 implantation. DESIGN:Retrospective case series. METHODS:All consecutive cases of MMC-augmented trabeculectomy performed after MMC-augmented XEN-45 in the Glauco...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000001000
更新日期:2018-10-01 00:00:00
abstract:PURPOSE:To measure the change in intraocular pressure (IOP) of the fellow eye after glaucoma surgery in 1 eye. PATIENTS AND METHODS:In this prospective interventional study, 71 patients with primary and secondary glaucoma, undergoing glaucoma surgery in 1 eye were included. The IOP in the fellow eye following glaucoma...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000000217
更新日期:2016-03-01 00:00:00
abstract::We herein report 2 eyes with significant loss of vision after glaucoma filtering surgery that was accompanied by progressive macular thinning detected on macular optical coherence tomography imaging. The findings provide evidence that progressive retinal ganglion cell loss is one of the causes of visual loss after unc...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000001202
更新日期:2019-06-01 00:00:00
abstract:PURPOSE:To evaluate tonometric outcomes of patients with primary angle closure glaucoma (PACG) who have undergone trabeculectomy with mitomycin C (MMC) with and without concurrent phacoemulsification and to identify risk factors for postoperative failure. PATIENTS AND METHODS:Retrospective cohort study of 44 eyes of 3...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000000493
更新日期:2016-09-01 00:00:00
abstract:PURPOSE:To determine the level of adherence to the American Academy of Ophthalmology preferred practice pattern (PPP) guidelines for quality primary open-angle glaucoma (POAG) and POAG suspect (POAGS) care among retail-based optometrists. METHODS:Patients with a diagnosis of POAG or POAGS who participated in a telemed...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000001093
更新日期:2018-12-01 00:00:00
abstract:PURPOSE:To describe a simple method and outcomes of remodeling dysesthetic, oversized filtering blebs. PATIENTS AND METHODS:Retrospective chart review of the initial consecutive patients who had undergone "bleb window"-pexy (BWP) over a 1-year period. Patients with symptomatic, oversized, and dysmorphic blebs that did...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0b013e3181815a06
更新日期:2009-09-01 00:00:00
abstract::Glaucoma secondary to penetrating keratoplasty can be challenging and multiple surgeries may be needed to control the intraocular pressure (IOP), including the use of glaucoma drainage implants. However, late failure of these drainage implant surgery is common, mostly because of excessive scarring or bleb encapsulatio...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000000739
更新日期:2017-10-01 00:00:00
abstract::A 56-year-old Hispanic male individual with moderate primary open-angle glaucoma on maximal tolerated topical therapy with recent visual field progression presented with excessive glare due to cataract in the right eye. The patient underwent uncomplicated phacoemulsification with supraciliary microstent implantation. ...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000001407
更新日期:2020-01-01 00:00:00
abstract:PURPOSE:To evaluate the peripapillary retinal nerve fiber layer (RNFL), ganglion cell complex, and macular thickness as well as their correlation with the severity of diseases. MATERIALS AND METHODS:This is a cross-sectional study and comparing both eyes of 26 patients with primary open-angle glaucoma, 25 patients wit...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000000239
更新日期:2016-07-01 00:00:00
abstract:PURPOSE:To investigate, using in vivo confocal microscopy (IVCM), the Meibomian gland (MG) features and conjunctival goblet cell density (GCD) in glaucomatous patients controlled with prostaglandin/timolol fixed combinations (PTFCs). MATERIALS AND METHODS:In this cross-sectional study, 60 white patients were treated w...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000000899
更新日期:2018-04-01 00:00:00
abstract:PURPOSE:To determine the optimal OCT-3 scanning protocol. METHODS:Normal subjects, ocular hypertensive, and open-angle glaucoma patients were enrolled. The "fast" RNFL scan protocol consists of 3 consecutive circular scans, each containing 256 A-scans obtained in a single 1.92 second session. The "regular" RNFL scan p...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/00061198-200404000-00010
更新日期:2004-04-01 00:00:00
abstract:PURPOSE:More than one million patients in the United States are treated for glaucoma, although little is known about the typical clinical characteristics of this group of patients and the type of therapy they receive. This study was conducted to describe the demographic and diagnostic characteristics of patients beginn...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/00061198-200002000-00008
更新日期:2000-02-01 00:00:00
abstract:PURPOSE:To propose a new surgical technique for optimized visualization of the chamber angle using scleral indentation under an operating microscope in goniosynechialysis (GSL). PATIENTS AND METHODS:Six volunteers with normal chamber angle and five patients with synechial angle closure glaucoma were examined. Scleral ...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/01.ijg.0000170061.51878.02
更新日期:2005-08-01 00:00:00
abstract:PRECIS:Chinese Glaucoma Study Consortium (CGSC) as the first nationwide glaucoma registry in China, we describe its design, rationale, the geographic distribution of the hospitals, and baseline patient characteristics. AIM:As a leading cause of blindness in China, glaucoma affects 2% to 4% of adults over the age of 40...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000001378
更新日期:2019-11-01 00:00:00
abstract:PURPOSE OF THE STUDY:The purpose of the study was to evaluate the long-term effectiveness and safety profile of Baerveldt glaucoma implant (BGI) in patients with refractory glaucoma operated using a modified technique to avoid postoperative complications. PATIENTS AND METHODS:A total of 160 eyes from 147 glaucomatous ...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000000488
更新日期:2016-12-01 00:00:00
abstract:PURPOSE:Management of a case of glaucoma secondary to an iris metastasis is reported. RESULTS:A 31-year-old woman developed glaucoma secondary to a metastatic tumor to the iris. Anti-glaucoma medication failed to control the increase in intraocular pressure (IOP). However, diode laser cyclophotocoagulation controlled ...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:
更新日期:1998-10-01 00:00:00
abstract:PRECIS:The association between primary open-angle glaucoma (POAG) and subsequent development of chronic kidney disease (CKD) was investigated using a nationwide, population-based, retrospective cohort in South Korea. POAG increases the risk of subsequent CKD development. PURPOSE:The purpose of this study was to invest...
journal_title:Journal of glaucoma
pub_type: 杂志文章
doi:10.1097/IJG.0000000000001390
更新日期:2019-12-01 00:00:00
abstract:PURPOSE:To characterize and compare the ocular comfort and symptoms of dorzolamide and tear-replacement drops (placebo) in healthy volunteers. PATIENTS AND METHODS:Subjects were randomized in a double-masked fashion to receive each medicine for 6 days twice daily. Patients used a visual analog scale to assess the qual...
journal_title:Journal of glaucoma
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00061198-200304000-00010
更新日期:2003-04-01 00:00:00