Abstract:
:The main purpose of this thesis was to examine whether the Danish National Patient Registry (NPR) could be used to monitor and assess the quality of cataract surgery in Denmark by studying the risks of two serious postoperative complications following cataract surgery - retinal detachment (RD) and postoperative endophthalmitis (PE). The thesis consists of four retrospective studies. In the first study (paper I), we used data from the NPR in the calendar period 2000-2010 to investigate the risk of pseudophakic retinal detachment (PRD) using the fellow non-operated eyes of the patients as reference. The study showed that over a 10-year study period, the risk of PRD was increased by a factor of 4.2 irrespective of sex and age. The risk of PRD was highest in the first part of the postoperative period and then gradually decreased but remained statistically significantly higher than the risk of RD in non-operated fellow eyes up to 10 years after cataract surgery. The epidemiology of RD in the non-operated fellow eyes was different from the epidemiology of RD in the background population as young men had the highest risk of RD in the non-operated fellow eyes. This means that the absolute risk of PRD was highest for young men because they had a higher risk of RD before they underwent cataract surgery. In the second study (paper II), we used data from the NPR and reviewed patient charts to assess the risk of PE after cataract surgery performed in public eye departments and private hospitals/clinics in the study period 2002-2010. The overall risk of PE among the seven public eye departments was 0.36 per 1000 registered cataract operations, and the PE risk among the departments was homogeneous. The overall risk of PE among the 28 private hospitals/clinics was 0.73 per 1000 registered cataract operations, and the risk among the private hospitals/clinics was heterogeneous. Most private hospitals/clinics had a risk of PE that was lower than or similar to the risk of PE after registered cataract surgery in public eye departments, but six private hospitals/clinics had a statistically significantly higher risk of PE compared to the public eye departments. We used PE as a proxy measure of the registration of cataract surgery and found that 98% of the cataract operations performed in public eye departments were registered in the NPR while only 38% of the cataract operations performed in private hospitals/clinics were registered in the NPR. In general, the coding of the PE cases was not uniform and the lack of registration by the private hospitals/clinics meant that the NPR could not be used to monitor the true risk of PE. NPR data were also used in the third study (paper III) to examine whether patients who had surgical intervention for PE following cataract surgery with either a pars plana vitrectomy (PPV) or a vitreous tap (VT) had a higher risk of subsequent surgical complications. There was no statistically significant difference in the overall risk of complications among the two groups, but the risk of surgery for vitreous opacities was statistically significantly higher for patients who underwent a VT. A surgical complication occurred in 27.3% of the patients and 9.9% of the patients developed more than one surgical complication. Ninety-seven per cent of the primary surgical complications occurred within the first 5 months. The risk of surgical complications in this study was similar to or higher than the risk of complications in the landmark Endophthalmitis Vitrectomy Study from the early 1990s. In the fourth study (paper IV), we used data from all three Danish cataract registries to describe the epidemiology of cataract operations performed in public hospitals and private hospitals/clinics in the study period 2004-2012. Again, PE was used as a proxy measure of the registration of cataract surgery. There were several noticeable differences in the epidemiology of the cataract operations performed in public hospitals and private hospitals/clinics. Patients who had cataract surgery in public hospitals had a statistically significantly higher mortality compared to patients who had cataract surgery in private hospitals/clinics during the entire period. The decrease in the mean age at first eye cataract surgery in private hospitals/clinics was statistically significantly greater compared to public hospitals during the study period. There was a statistically significantly shorter median time interval between first and second eye cataract surgery at private hospitals/clinics compared to public hospitals during the entire study period. The study showed that only 54% of the cataract operations performed in private hospitals/clinics that led to PE were registered. The lack of registration of cataract surgery is the main reason why the NPR has limitations when used as a tool to monitor and assess the quality of cataract surgery in Denmark.
journal_name
Acta Ophthalmoljournal_title
Acta ophthalmologicaauthors
Bjerrum SSdoi
10.1111/aos.12676subject
Has Abstractpub_date
2015-03-01 00:00:00pages
1-15eissn
1755-375Xissn
1755-3768journal_volume
93 Thesis 2pub_type
杂志文章abstract:PURPOSE:To examine the patient's subjective visual sensations during cataract surgery performed under topical anaesthesia. METHODS:Prospective, non-randomized, cohort study. One hundred and thirty-two patients were interviewed by standard questionnaire within 1 hr of uncomplicated cataract surgery performed under topi...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/j.1755-3768.2007.01153.x
更新日期:2008-12-01 00:00:00
abstract:PURPOSE:The aim of this study was to analyse 69 Chinese patients with USH2A mutations and to assess the genotype-phenotype correlation. METHODS:All 36 Usher syndrome type IIA patients and 33 nonsyndromic RP (retinitis pigmentosa) patients underwent clinical examinations. Eye examinations included best-corrected visual...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.14626
更新日期:2020-10-29 00:00:00
abstract:PURPOSE:Tissue inhibitors of metalloproteinases (TIMPs) block the catalysis by matrix metalloproteinases (MMPs) and have additional biologic activities, including regulation of cell growth and differentiation, apoptosis, angiogenesis and oncogenesis. We investigated the expression levels of all the four human TIMPs and...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.13451
更新日期:2018-02-01 00:00:00
abstract:PURPOSE:We aimed to assess the macular anatomy using spectral domain optical coherence tomography (SD-OCT), in children born preterm who had laser-treated retinopathy of prematurity (ROP), and to investigate the relationship between structural changes in macula and visual function. METHODS:Thirty-seven 3-8 years old c...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.13536
更新日期:2018-03-01 00:00:00
abstract:AIMS:This prospective, multicenter, single-masked study evaluated the additive effect of dorzolamide hydrochloride 2% on the diurnal intraocular pressure (IOP) curve and retinal and retrobulbar hemodynamics in patients with primary open-angle glaucoma (POAG) treated with morning-dosed bimatoprost 0.03%. METHODS:Eighty...
journal_title:Acta ophthalmologica
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1111/j.1755-3768.2010.02036.x
更新日期:2011-02-01 00:00:00
abstract:PURPOSE:Ocular and brain microcirculation share embryological and histological similarities. The retinal vascular fractal dimension (FD) is a marker of retinal vascular complexity of the vascular tree. The purpose of this study was to explore the relationship between cerebral blood flow (CBF), retinal vascular FD and o...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.14232
更新日期:2020-02-01 00:00:00
abstract:PURPOSE:To examine the public health impact of presbyopia regarding its effect on quality of life (QoL) and society in both the developed and developing worlds. METHODS:A database was created from articles found on PubMed, the Cochrane Library and Science Direct using the following search terms: presbyopia, QoL, accom...
journal_title:Acta ophthalmologica
pub_type: 杂志文章,评审
doi:10.1111/aos.12308
更新日期:2014-09-01 00:00:00
abstract:PURPOSE:To employ ultrahigh-resolution (UHR) optical coherence tomography (OCT) for investigation of the early wound healing process in corneal epithelium. METHODS:A custom-built UHR-OCT system assessed epithelial healing in human keratoconic cornea after epi-off crosslinking (CXL) procedure and a wound healing model ...
journal_title:Acta ophthalmologica
pub_type: 杂志文章,随机对照试验
doi:10.1111/aos.14053
更新日期:2019-08-01 00:00:00
abstract:PURPOSE:The present study aimed to investigate and compare the psychometric properties of the National Eye Institute Visual Functioning Questionnaire-25 (NEI VFQ-25) and the Visual Function Index-14 (VF-14) in a large sample of patients with cataracts. METHODS:A total of 1052 patients with bilateral age-related catara...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.14606
更新日期:2020-09-17 00:00:00
abstract:PURPOSE:To examine visual acuity, refraction and ocular status before, during and after hyperbaric oxygen therapy (HBOT). METHODS:Twenty-nine patients underwent 40 standard protocol HBOT treatments. In all subjects, refraction and best corrected visual acuity were measured at baseline and after ten, 20, 30 and 40 trea...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.14010
更新日期:2019-09-01 00:00:00
abstract:PURPOSE:To evaluate the trends and variations in global health burden of glaucoma by year, age and sex, region and socio-economic status, using disability-adjusted life years (DALYs). METHOD:The DALY numbers, crude DALY rate and age-standardized DALY rate globally and in each country were obtained the GBD 2015 study d...
journal_title:Acta ophthalmologica
pub_type: 杂志文章,多中心研究
doi:10.1111/aos.14044
更新日期:2019-05-01 00:00:00
abstract:PURPOSE:To report the postoperative results after enucleation of using an acrylic orbital implant covered in donor sclera for implantation. METHODS:We retrospectively analysed the charts of patients who were enucleated between 2007 and 2011. Only patients who received an acrylic implant covered with donor sclera were ...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.12960
更新日期:2016-05-01 00:00:00
abstract:PURPOSE:To evaluate the association between the macular structure on spectral-domain optical coherence tomography (SD-CT) and visual outcome after vitrectomy for lamellar macular hole (LMH). METHODS:Best-corrected visual acuity (VA) and SD-OCT images of the macula were assessed before and after surgery in 30 eyes of 3...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/j.1755-3768.2012.02456.x
更新日期:2012-12-01 00:00:00
abstract:PURPOSE:To investigate the associations between ocular pulse amplitude (OPA) as measured by dynamic contour tonometry (DCT) and ocular and systemic factors in patients with open angle glaucoma (OAG) and in glaucoma suspects. METHODS:One hundred and seventy-three glaucoma-suspect patients were consecutively enrolled. A...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/j.1755-3768.2010.01954.x
更新日期:2012-09-01 00:00:00
abstract:PURPOSE:Contact lenses have direct contact with the corneal surface and can induce sight-threatening infection of the cornea known as Acanthamoeba keratitis. The objective of this study was to evaluate the dysprosium-based nanoparticles (Dy-based NPs), namely Fe3 O4 -PEG-Dy2 O3 nanocomposites and Dy(OH)3 nanorods, as a...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.14541
更新日期:2020-07-23 00:00:00
abstract:PURPOSE:Angiogenic inhibitors, alone or combined with other therapies, are believed to represent a promising treatment for neovascularization in age-related macular degeneration (wet AMD). They can maintain or improve visual acuity (VA), at least for the first 2years. However, evolution to retinal atrophy cannot be rul...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/j.1755-3768.2009.01526.x
更新日期:2010-09-01 00:00:00
abstract:PURPOSE:To assess the retinal vessel blood oxygen saturation preoperatively and postoperatively in patients with different grades of cataracts. METHODS:This study included 40 eyes from 40 patients with senile cataracts ranging from grade 1 to 3. All 40 eyes received standard phacoemulsification and intraocular lens im...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.13332
更新日期:2017-09-01 00:00:00
abstract:PURPOSE:To determine alterations in the retina of patients with Alzheimer's disease (AD) by the newly developed technique of fluorescence lifetime imaging ophthalmoscopy (FLIO) in a pilot study. METHODS:FLIO set-up uses a scanning laser ophthalmoscope (HRA2, Heidelberg Engineering, Germany), which was modified by the ...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.12609
更新日期:2015-06-01 00:00:00
abstract:PURPOSE: To describe and evaluate a cryo-assisted, minimally invasive, anterior approach for orbital tumour surgery. METHODS: Retrospective, non-comparative, consecutive, interventional case series of 103 patients who were operated on by the same surgeon for retroocular orbital tumours over the last 16 years. RESUL...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/j.1755-3768.2009.01515.x
更新日期:2010-09-01 00:00:00
abstract::This literature review is aimed at the evaluation of the potential for cataract prevention in Europe. It was performed using PubMed with Mesh and free-text terms. Studies included were (i) performed on a population of Caucasian origin at an age range of 40-95 years, (ii) cataract was clinically verified, (iii) drug re...
journal_title:Acta ophthalmologica
pub_type: 杂志文章,评审
doi:10.1111/j.1755-3768.2012.02444.x
更新日期:2013-08-01 00:00:00
abstract:PURPOSE:To investigate the value of posterior keratometry in the assessment of surgically induced astigmatic change (AC) in cataract surgery, with particular emphasis on the influence of test-retest variability. METHODS:Seventy-seven eyes of 77 cataract patients scheduled for routine cataract surgery were enrolled. Al...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.13003
更新日期:2016-08-01 00:00:00
abstract:PURPOSE:To evaluate the positivity rate of temporal artery biopsies (TAB) performed in suspects of giant cell arteritis (GCA) and to study the epidemiological and clinical factors associated to the biopsy result. METHODS:A retrospective, multicenter, case-control study was performed, including three hundred and thirty...
journal_title:Acta ophthalmologica
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1755-3768.2012.02505.x
更新日期:2013-12-01 00:00:00
abstract:PURPOSE:To evaluate the ability of ultrasound biomicroscopy (UBM) to detect abnormalities in the zonular apparatus in unaffected eyes of patients with clinically unilateral exfoliation syndrome (XFS) using a standardized grading system. METHODS:The affected and unaffected eyes of 17 patients with clinically unilateral...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/j.1600-0420.2007.01105.x
更新日期:2008-08-01 00:00:00
abstract:PURPOSE:To report the functional and anatomical outcomes resulting from the use of intravitreal pegaptanib sodium (Macugen) in patients with diabetic macular oedema (DMO). METHODS:We conducted a retrospective outcome analysis, by optical coherence tomography (OCT) and best-corrected visual acuity (BCVA), of eyes with ...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/j.1755-3768.2009.01580.x
更新日期:2009-09-01 00:00:00
abstract:PURPOSE: This study aimed to compare scanning laser polarimetry measurements of retinal nerve fibre layer (RNFL) thickness in eyes of migraine patients with those in eyes of age-matched, healthy subjects. METHODS: The study was designed as an observational, prospective, cross-sectional study. It included 57 eyes of 57...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/j.1755-3768.2008.01356.x
更新日期:2009-11-01 00:00:00
abstract:PURPOSE:To investigate whether exposure to antazoline-naphazoline eye drops in the first trimester of pregnancy was associated with an increased risk of malformations in humans. METHODS:All women giving live birth between 1997 and 2011 in Denmark were included in this nationwide cohort study. All women redeeming at le...
journal_title:Acta ophthalmologica
pub_type: 杂志文章,多中心研究
doi:10.1111/aos.13980
更新日期:2019-08-01 00:00:00
abstract:PURPOSE:To describe the concordance of keratoconus in 18 sets of twins. METHODS:Thirteen monozygotic (MZ) and five dizygotic (DZ) pairs of twins were identified during an investigation of familial keratoconus. We used 16 forensic microsatellite markers to confirm the zygosity of same sex twins. Patients and available ...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/j.1755-3768.2012.02448.x
更新日期:2012-09-01 00:00:00
abstract:PURPOSE:To investigate whether higher blood pressure and greater arterial stiffness are associated with the presence of macular cysts and whether this association is already present in the absence of micro-aneurysms in individuals with and without type 2 diabetes. METHODS:Using spectral domain optical coherence tomogr...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.14677
更新日期:2020-11-30 00:00:00
abstract:PURPOSE:To provide a systematic review of the published studies pertaining to the lifestyle modification, dietary, nutritional and vitamins supplements for preventing occurrence or halting deterioration of age-related macular degeneration (AMD). METHODS:The literature searches from 1990 to December 2010 with following...
journal_title:Acta ophthalmologica
pub_type: 杂志文章,评审
doi:10.1111/j.1755-3768.2011.02357.x
更新日期:2013-02-01 00:00:00
abstract::Although the work for which Emil von Behring (1854-1917) was awarded the first Nobel Prize Winner for Medicine or Physiology in 1901 was on serum therapy, not only was he trained and worked as an ophthalmologist but he also wrote his doctoral dissertation on a practical ophthalmological topic whilst in Berlin under Ca...
journal_title:Acta ophthalmologica
pub_type: 传,历史文章
doi:10.1111/j.1755-3768.2011.02343.x
更新日期:2013-06-01 00:00:00