Abstract：
:The extent of visual function loss from nuclear cataractous change can be estimated by observing the extinction of blue light compared to white light as a function of sagittal lens depth in standard slit lamps. Apparent extinction (loss of transmissivity) of 50% or more of the depth of the lens in blue light of maximal intensity compared to white light at minimal intensity is associated with marked visual loss. However, this transmissivity ratio of 0.5 or less also applies if light intensity remains constant and the blue filter is simply moved in and out of the light beam. Therefore, if 50% or more of the lens appears dark to blue-filtered light, nuclear changes have significantly decreased effective visual acuity. Relative blue-light extinction associated with nuclear change that may be amenable to surgical correction can thus be distinguished from the extinction effect caused by age alone.
journal_name
Am J Ophthalmoljournal_title
American journal of ophthalmologyauthors
Krohn DL,Asbell P,Ullian K,Katz Sdoi
10.1016/0002-9394(81)90057-xsubject
Has Abstractpub_date
1981-05-01 00:00:00pages
598-602issue
5eissn
0002-9394issn
1879-1891pii
0002-9394(81)90057-Xjournal_volume
91pub_type
杂志文章abstract：:Sixty-five patients less than 10 years of age had cataract surgery on 99 eyes. The visual prognosis depended on the cataract type and whether the treatment was undertaken during the critical period for development of the fixation reflex. All patients received the same surgical technique, aggressive optical correction,...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/0002-9394(82)90237-9
更新日期：1982-10-01 00:00:00
abstract：PURPOSE:To determine whether higher-order aberrations can explain the monocular diplopia reported by a patient. DESIGN:Observational case report. METHODS:A patient complaining of monocular diplopia was examined with the Hartmann-Shack aberrometer to determine if the higher-order wavefront aberrations could account fo...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/j.ajo.2005.12.040
更新日期：2006-06-01 00:00:00
abstract：PURPOSE:In previous studies of fungal keratitis (FK) from temperate countries, yeasts were the predominant isolates, with ocular surface disease (OSD) being the leading risk factor. Since the 2005-2006 outbreak of contact lens (CL)-associated Fusarium keratitis, there may have been a rise in CL-associated filamentary F...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/j.ajo.2016.05.021
更新日期：2016-08-01 00:00:00
abstract：PURPOSE:To present a new surgical technique for severe, symptomatic conjunctivochalasis and our hypothesis of the pathogenesis of this condition. METHODS:Six eyes of three patients with conjunctivochalasis (average age +/-SD, 70.0 +/- 9.6 years; range, 56-78 years) were treated with a conjunctival fixation to sclera w...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/s0002-9394(99)00384-0
更新日期：2000-03-01 00:00:00
abstract：:A 35-year-old woman with Engelmann's disease and systemic lupus erythematosus developed spontaneous luxation of the globe and glaucoma. Radiological studies demonstrated increased sclerosis of the orbital bones and decreased orbital volumes, the probable cause of the luxation and the glaucoma. The glaucoma was control...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/0002-9394(77)90917-5
更新日期：1977-06-01 00:00:00
abstract：PURPOSE:To report endoscopic findings in the anterior chamber angle during injection of viscoelastic material in viscocanalostomy (VCS). DESIGN:Observational case reports. METHODS:Two cases of primary open-angle glaucoma were treated with VCS and cataract surgery. Immediately before and during injection of viscoelast...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/j.ajo.2004.06.040
更新日期：2004-12-01 00:00:00
abstract：PURPOSE:To determine the effectiveness of intravitreal triamcinolone acetonide in the management of bacterial endophthalmitis. DESIGN:Interventional case series. METHODS:This pilot case series included five patients (three patients after trauma and two patients after cataract surgery) with culture proven bacterial en...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/j.ajo.2005.11.043
更新日期：2006-05-01 00:00:00
abstract：:A 17-year old girl received prednisone and azathioprine for the treatment of systemic lupus erythematosus. She developed a fever and hallucinations 18 months later; cryptococcal meningitis was diagnosed. An internal ophthalmoplegia with loss of accommodation and dilation of the pupils developed together with bilateral...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/0002-9394(79)90304-0
更新日期：1979-05-01 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：PURPOSE:To determine the 24-month results of patients who had pro re nata (PRN) aflibercept treatment owing to recurrent or resistant neovascular macular degeneration. DESIGN:Retrospective, interventional, consecutive case series. METHODS:Eighty-one eyes of 78 patients with resistant or multiple recurrences of intrar...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/j.ajo.2016.03.038
更新日期：2016-07-01 00:00:00
abstract：OBJECTIVE:To elucidate molecular risk factors for posterior segment uveitis using a functional genomics approach. DESIGN:Genetic association cohort study. METHODS:Setting: Single-center study at an academic referral center. STUDY POPULATION:164 patients with clinically diagnosed uveitis of the posterior segment. MA...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/j.ajo.2020.07.021
更新日期：2021-01-01 00:00:00
abstract：:In this prospective evaluation of the reliability and efficiency of an optimized visual field screening protocol for glaucoma, we tested 145 eyes (73 patients) with increased intraocular pressures to determine the location of early glaucomatous visual field defects. The field examination, which was used as a control, ...
journal_title：American journal of ophthalmology
pub_type： 临床试验,杂志文章
doi：
更新日期：1981-10-01 00:00:00
abstract：PURPOSE:To characterize spontaneous dislocation of the fluocinolone acetonide sustained release implant (Retisert; Bausch & Lomb) drug pellet from its strut. DESIGN:Retrospective, observational case series. METHODS:The medical records of 224 patients in whom 407 fluocinolone acetonide implants were placed by either o...
journal_title：American journal of ophthalmology
pub_type： 杂志文章,多中心研究
doi：10.1016/j.ajo.2015.01.031
更新日期：2015-05-01 00:00:00
abstract：PURPOSE:To explore the possible involvement of adrenomedullin in the pathophysiology of intraocular and orbital tumors. METHODS:Competitive reverse transcription-polymerase chain reaction was used to determine adrenomedullin mRNA levels in the tissues from 40 consecutive patients (40 eyes) undergoing vitrectomy, orbit...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/s0002-9394(99)00442-0
更新日期：2000-04-01 00:00:00
abstract：PURPOSE:To determine the prevalence of drusen-like deposits (DLDs) and choroidal changes in patients with systemic lupus erythematosus (SLE), with or without glomerulonephritis; and to correlate ocular findings with systemic features. DESIGN:Case-control study. METHODS:Sixty patients with SLE (age, 18-55 years; 30 wi...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/j.ajo.2016.11.014
更新日期：2017-03-01 00:00:00
abstract：PURPOSE:To document a case of Candida tropicalis endophthalmitis as the only manifestation of pacemaker endocarditis. METHODS:We examined a 75-year-old man with diabetes mellitus who was initially examined for bilateral multifocal endophthalmitis complicating endocarditis 2 years after a permanent pacemaker for sick s...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/s0002-9394(14)70189-8
更新日期：1997-04-01 00:00:00
abstract：PURPOSE:To highlight the possible role of indocyanine green angiography in predicting future exudative changes in eyes that are candidates for drusen laser treatment. METHODS:In a 56-year-old woman, fluorescein and indocyanine green angiography were performed before drusen laser treatment. RESULTS:The treated eye had...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/s0002-9394(14)70875-x
更新日期：1997-10-01 00:00:00
abstract：PURPOSE:To determine whether retinal arteriolar wall signs are associated with early age-related macular degeneration (AMD). DESIGN:Population-based cross-sectional study. METHODS:The Singapore Malay Eye Study (SiMES) is a population-based eye survey including 3,280 (78.7% response) persons aged 40 to 80 years. Retin...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/j.ajo.2011.01.012
更新日期：2011-07-01 00:00:00
abstract：:To study further the transient increase in trabecular cell division within the first two days after laser trabeculoplasty in human corneoscleral explant organ cultures, we used a pulse-chase protocol in which immediately after laser treatment 3H-thymidine was added to the culture medium for 48 hours (the pulse period)...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/0002-9394(89)90805-2
更新日期：1989-01-15 00:00:00
abstract：:A 7 1/2-year-old boy died of the Jansky-Bielschowsky type of neuronal ceroidlipofuscinosis. Although an electroretinogram showed reduced activity, pigmentary retinal atrophy was not demonstrable by ophthalmoscopy two years before death. At autopsy, the retina had severe loss of photoreceptor cells, pigment displacemen...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/0002-9394(77)90194-5
更新日期：1977-01-01 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：:We analyzed the surgical results for 197 eyes that underwent vitrectomy for diabetic traction detachment of the macula. The retina was successfully reattached in 130 of the 197 cases (66%), although the final level of vision depended on the amount of permanent macular damage from the previous detachment and on the eff...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/0002-9394(83)90330-6
更新日期：1983-01-01 00:00:00
abstract：:Between 1976 and 1982, we examined 13 patients with clinical and radiographic findings consistent with optic nerve sheath meningioma. All patients had visual loss, evidence of optic nerve dysfunction, centrocecal visual field defects, and echographic and computed tomographic evidence of optic nerve or sheath enlargeme...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/0002-9394(85)90506-9
更新日期：1985-09-15 00:00:00
abstract：PURPOSE:To investigate the complication profile and the long-term functional outcome of combined pars plana vitrectomy and scleral-fixated sutured posterior chamber lens (PC IOL) implantation. DESIGN:Retrospective, consecutive, interventional case series. METHODS:The records of 63 patients (mean age, 67.5 years) were...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/j.ajo.2007.05.014
更新日期：2007-09-01 00:00:00
abstract：PURPOSE:Periocular injection of corticosteroids is a common treatment for vision loss in patients with intermediate uveitis. However, this treatment has the potential for serious side effects. We sought to determine the effects of such injections in a series of patients. METHODS:We reviewed charts of 20 consecutive pa...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/s0002-9394(14)73759-6
更新日期：1995-07-01 00:00:00
abstract：PURPOSE:To report on the clinical manifestations, complications, and long-term visual prognosis of patients with peripheral multifocal chorioretinitis and to search for predictors for a lower visual outcome. DESIGN:Retrospective consecutive observational case series. METHODS:setting: Institutional. PATIENT POPULATIO...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/j.ajo.2015.01.005
更新日期：2015-04-01 00:00:00
abstract：PURPOSE:The aim of this study is to investigate temporal trends in multifocal ERG (mfERG) parameters and analyze their relationships with anatomic and functional markers in patients with birdshot chorioretinopathy (BSCR). DESIGN:Prospective observational case series. METHODS:Sixteen BSCR patients were include and und...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/j.ajo.2018.11.022
更新日期：2019-04-01 00:00:00
abstract：PURPOSE:To report the cases of four patients with hepatitis C virus infection who experienced clinical features that are virtually identical to Vogt-Koyanagi-Harada disease (VKH). DESIGN:Retrospective observational case series. METHODS:Medical records of patients who were referred between January and December 2003 we...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/j.ajo.2005.06.020
更新日期：2005-11-01 00:00:00
abstract：PURPOSE:To study the clinicopathologic features of an untreated macular hole in the right eye and a macular hole in the left eye treated by vitrectomy, application of transforming growth factor-beta 2, and gas tamponade. METHODS:The patient, a 73-year-old man with bilateral macular holes, was studied clinically before...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/s0002-9394(14)70382-4
更新日期：1996-12-01 00:00:00
abstract：PURPOSE:To examine surgical and refractive outcomes of phacoemulsification with intraocular lens (IOL) implant in eyes with prior trabeculectomy. DESIGN:Retrospective observational case-control study. METHODS:The study compared eyes that underwent phacoemulsification with IOL implant at least 3 months post-trabeculec...
journal_title：American journal of ophthalmology
pub_type： 杂志文章
doi：10.1016/j.ajo.2012.11.023
更新日期：2013-05-01 00:00:00
