Abstract:
PURPOSE:To show that extending Doppler imaging into the high-frequency domain could allow detection and characterization of blood flow in small arterioles and capillaries. METHODS:A 40-MHz continuous wave Doppler system and a 60-MHz pulsed-wave Doppler system were constructed, tested, and used to examine the ciliary body region in two normal volunteers. RESULTS:Ciliary body circulation in the region of the great circle of the iris, which is undetectable by conventional 7.5-MHz duplex Doppler, was consistently and reproducibly detectable by high-frequency (40-MHz and 60-MHz) Doppler systems. CONCLUSION:High-frequency Doppler imaging may provide a unique new tool for the characterization and assessment of anterior segment ocular blood flow.
journal_name
Am J Ophthalmoljournal_title
American journal of ophthalmologyauthors
Pavlin CJ,Christopher DA,Burns PN,Foster FSdoi
10.1016/s0002-9394(98)00122-6subject
Has Abstractpub_date
1998-10-01 00:00:00pages
597-600issue
4eissn
0002-9394issn
1879-1891pii
S0002939498001226journal_volume
126pub_type
杂志文章abstract:PURPOSE:To compare polymerase chain reaction (PCR) results to presumptive clinical diagnosis in patients with vitritis. DESIGN:Retrospective review of PCR laboratory records from vitreous samples. METHODS:Fifty consecutive laboratory records of vitreous samples sent for PCR testing were reviewed. Three reviewers with...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/j.ajo.2005.10.011
更新日期:2006-03-01 00:00:00
abstract:PURPOSE:To evaluate possible changes in macular morphology after cataract surgery with combined primary posterior capsulorhexis and posterior optic buttonholing in comparison to conventional in-the-bag intraocular lens (IOL) implantation. DESIGN:Prospective randomized study. METHODS:Fifty consecutive age-related cata...
journal_title:American journal of ophthalmology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.ajo.2008.02.022
更新日期:2008-07-01 00:00:00
abstract:PURPOSE:To evaluate the long-term safety and efficacy, in a large series of patients, of polyacrylic intraocular lens implants 1 and 3 years after surgery, compared with polymethylmethacrylate intraocular lens implants. METHODS:This was a randomized, prospective study of 1,514 eyes of 1,202 patients that were examined...
journal_title:American journal of ophthalmology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0002-9394(00)00490-6
更新日期:2000-09-01 00:00:00
abstract:PURPOSE:To compare three different methods of measuring corneal thickness (CT) and anterior chamber depth (ACD). DESIGN:Prospective clinical trial (Medical University of Vienna, Austria). METHODS:Central CT (CCT), CT at four peripheral points, and central ACD were measured in 88 eyes of 44 healthy subjects with the P...
journal_title:American journal of ophthalmology
pub_type: 临床试验,杂志文章
doi:10.1016/j.ajo.2005.08.048
更新日期:2006-01-01 00:00:00
abstract::In a retrospective review from 1972 through 1987 of patients with microbial keratitis, fungal infection occurred in four (4%) of 90 cosmetic or aphakic contact lens wearers and in four (27%) of 15 patients using a therapeutic soft contact lens. Predisposing factors included improper lens care by the refractive lens we...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/0002-9394(88)90705-2
更新日期:1988-12-15 00:00:00
abstract::We performed serial slit-lamp examinations and topography analysis on a patient whose initial topographic map suggested a diagnosis of keratoconus to us but which others interpreted as normal topography. Topography analysis documented cone progression during a two-year period. The initial map showed a cone apex power ...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/s0002-9394(14)76210-5
更新日期:1991-07-15 00:00:00
abstract:PURPOSE:To determine the amount and time course of binocular visual acuity improvement during treatment of bilateral refractive amblyopia in children three to less than 10 years of age. DESIGN:Prospective, multicenter, noncomparative intervention. METHODS:One hundred and thirteen children (mean age, 5.1 years) with p...
journal_title:American journal of ophthalmology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ajo.2007.05.040
更新日期:2007-10-01 00:00:00
abstract:PURPOSE:To describe a newly identified clinical entity tentatively named white dot fovea. METHODS:We examined by scanning laser ophthalmoscopy 58 eyes of 30 patients (mean age, 64 years) who had white dots in the fovea (anatomically defined as the foveola) simulating macular hole. In addition, the retinal surfaces of ...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/s0002-9394(14)70995-x
更新日期:1997-01-01 00:00:00
abstract:PURPOSE:To evaluate microbiota colonizing soft contact lenses (CL) in eyes with Boston type I keratoprosthesis (BKPro), and determine the prevalence of resistance to fourth-generation fluoroquinolone (FQ). DESIGN:Prospective, observational study. SUBJECTS:Patients with BKPro using CL as routine who were in postoperat...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/j.ajo.2018.05.021
更新日期:2018-08-01 00:00:00
abstract:PURPOSE:To determine the feasibility of using a modified femtosecond laser to perform penetrating corneal resections. DESIGN:Controlled laboratory study. METHODS:Fourteen corneoscleral rims were mounted on an artificial anterior chamber. Eight underwent traditional penetrating keratoplasty (PKP) and six underwent "to...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/j.ajo.2006.11.043
更新日期:2007-04-01 00:00:00
abstract:PURPOSE:To evaluate a new computerized segmentation technique for the quantification of intraretinal and subretinal fluid in spectral-domain optical coherence tomography (SD OCT) images of the retina. DESIGN:Prospective, cross-sectional study. METHODS:Thirty-seven B-scan images of 37 patients with exudative age-relat...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/j.ajo.2012.07.030
更新日期:2013-02-01 00:00:00
abstract:PURPOSE:To describe the clinical features and management of ocular surface squamous neoplasia (OSSN) after corneal graft. DESIGN:Retrospective case series of 4 patients. METHODS:Four eyes of 4 patients treated for OSSN after corneal graft in an institutional setting were included. All 4 patients were treated with top...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/j.ajo.2009.07.026
更新日期:2010-01-01 00:00:00
abstract:PURPOSE:To report refractive changes after cataract surgery and intraocular lens implantation in infants and children. METHODS:In an ongoing prospective study, the refractive errors of all patients younger than 18 years undergoing intraocular lens implantation were determined at 6 weeks, 3 months, 6 months, and 1 year...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/s0002-9394(98)00247-5
更新日期:1998-12-01 00:00:00
abstract:PURPOSE:To examine the influence of corneal allograft rejection on the survival of penetrating corneal transplantation, to review the status of conventional therapies to improve graft survival, and to consider prospects for alternative approaches to reduce the impact of rejection. DESIGN:Perspective, including prospec...
journal_title:American journal of ophthalmology
pub_type: 杂志文章,评审
doi:10.1016/j.ajo.2005.07.024
更新日期:2005-12-01 00:00:00
abstract::To establish the enzyme defect in gyrate atrophy, we measured the activity of ornithine aminotransferase in phytohemagglutinin stimulated lymphocytes in a patient with gyrate atrophy, her daughter, and three normal controls. The patient's cells had no detectable ornithine aminotransferase activity and the daughter's c...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/s0002-9394(14)75948-3
更新日期:1978-02-01 00:00:00
abstract::Induced prolonged complementary chromatopsia in four subjects (two men, 26 and 34 years old, and two women, 34 and 45 years old) was documented by abnormal responses to pseudoisochromatic color plates 30 minutes after cessation of monochrome video display terminal use. This phenomenon was unrelated to preexisting colo...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/0002-9394(84)90694-9
更新日期:1984-12-15 00:00:00
abstract:PURPOSE:To report a modified transposition procedure of the vertical recti for severely limited abduction of the globe caused by sixth nerve palsy and to compare this with the Hummelsheim transposition procedure. METHODS:Retrospective study of 13 eyes of 12 patients that had Hummelsheim transposition procedure and 19 ...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/s0002-9394(00)00805-9
更新日期:2001-03-01 00:00:00
abstract::Digital fundus angiography has advantages over conventional photography. However, digital angiography as it is normally performed, provides no stereoscopic information. Because stereoscopic data can be crucial in the evaluation of conditions such as age-related macular degeneration, we developed methods to record ster...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/s0002-9394(14)71409-6
更新日期:1993-10-15 00:00:00
abstract:PURPOSE:To report on a case of acute transient myopia associated with ciliochoroidal detachment induced by indapamide. METHOD:Case report. Clinical examination, ultrasonography, and fluorescein angiography were performed during the acute phase of disease and convalescence. RESULTS:After indapamide was discontinued, a...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/s0002-9394(99)00402-x
更新日期:2000-04-01 00:00:00
abstract:PURPOSE:To evaluate performance of optical coherence tomography (OCT) for detection of early glaucoma. DESIGN:Observational case-control study. METHODS: SETTING:University-based tertiary care center. STUDY POPULATION:One eye from 50 normals, 42 glaucoma suspects, and 59 early glaucoma patients meeting the following...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/j.ajo.2003.09.004
更新日期:2004-02-01 00:00:00
abstract:PURPOSE:To investigate the prevalence and associations of visual impairment and spectacle use in university students in central China. DESIGN:Cross-sectional study. METHODS:This study included students aged 16-26 years in China. Study subjects from 2 universities underwent distance visual acuity (VA) assessment in bo...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/j.ajo.2019.04.026
更新日期:2019-10-01 00:00:00
abstract:PURPOSE:To determine the safety and efficacy of AL-8309B (tandospirone) in the management of patients with geographic atrophy (GA) secondary to age-related macular degeneration (AMD) and obtain standardized data on GA lesion growth progression. DESIGN:Prospective, controlled, double-masked, randomized, multicenter pha...
journal_title:American journal of ophthalmology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.ajo.2015.08.024
更新日期:2015-12-01 00:00:00
abstract:PURPOSE:To identify visually significant spectral-domain optical coherence tomography (SD-OCT) features of epiretinal membranes (ERM) in patients with uveitis. DESIGN:Retrospective cohort and cross-sectional study. METHODS:Eighty consecutive eyes with uveitis and SD-OCT-documented ERM were included. Clinical data wer...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/j.ajo.2012.01.032
更新日期:2012-07-01 00:00:00
abstract:PURPOSE:Long-term evaluation of dihematoporphyrin ether (DHE) safety and efficacy as photodynamic therapy (PDT) for patients with corneal neovascularization (KNV). DESIGN:Prospective multi-center interventional case series. METHODS:Seven patients were enrolled after Institutional Review Board approval and a detailed ...
journal_title:American journal of ophthalmology
pub_type: 临床试验,杂志文章
doi:10.1016/j.ajo.2005.11.003
更新日期:2006-03-01 00:00:00
abstract:PURPOSE:To determine the population-based incidence and cause of cranial nerve palsies affecting ocular motility in children in the circumscribed population of Olmsted County, Minnesota. METHODS:The Rochester Epidemiology Project medical records linkage system captures virtually all medical care provided to Olmsted Co...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/s0002-9394(98)00424-3
更新日期:1999-04-01 00:00:00
abstract::We studied 1,000 eyes of 500 subjects in an attempt to discover a relationship between lattice and snail track degenerations of the peripheral retina. Because of the clinical similarities between these two degeneration lesions, we suggest that snail track degeneration is either a variant of or an early stage of lattic...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/0002-9394(81)90639-5
更新日期:1981-10-01 00:00:00
abstract::We recorded visual-evoked cortical potentials before and after pars plana vitrectomy and intravitreal liquid silicone filling in 30 patients (30 eyes) with complicated retinal detachments without vascular eye disease or glaucoma. The flash- and flicker-evoked cortical potentials increased in amplitude in all cases. Of...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/0002-9394(88)90364-9
更新日期:1988-09-15 00:00:00
abstract:PURPOSE:To determine a correlation between foveal morphologic changes and visual outcomes in patients with resolved central serous chorioretinopathy (CSC). DESIGN:Observational case series. METHODS:We measured the outer nuclear layer (ONL) thickness at the central fovea and evaluated the integrity of the photorecepto...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/j.ajo.2009.01.018
更新日期:2009-07-01 00:00:00
abstract:PURPOSE:Report incidence and risk of retinal detachment (RD)after coaxial phacoemulsification in high myopic patients. DESIGN:Retrospective consecutive interventional study. METHODS: SETTING:Vissum-Instituto Oftalmologico de Alicante, Spain. PATIENT OR STUDY POPULATION: A total of 439 eyes from 274 high myopic patie...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/j.ajo.2007.03.043
更新日期:2007-07-01 00:00:00
abstract:PURPOSE:To examine clinical outcomes in deep anterior lamellar keratoplasty (DALK) for keratoconus using contemporary techniques in a multisurgeon public healthcare setting. DESIGN:Consecutive, retrospective case series. METHODS:Setting: Moorfields Eye Hospital, London, United Kingdom. STUDY POPULATION:Consecutive c...
journal_title:American journal of ophthalmology
pub_type: 杂志文章
doi:10.1016/j.ajo.2019.01.022
更新日期:2019-05-01 00:00:00