Abstract:
PURPOSE:To examine the movement of air injected in the cornea in simulated deep anterior lamellar keratoplasty (DALK), from the needle tip to the formation of different types of big bubbles (BB) and to ascertain how air travels through the stroma and pre-Descemet's layer [Dua's layer (PDL)] to create a type-1 (air between PDL and deep stroma) and type-2BB (air between PDL and Descemet's membrane). METHODS:Air was injected in 57 sclerocorneal discs and the passage recorded. Leaking points and sites of commencement of type-1 and type-2BB were examined by scanning electron microscopy. Stromal distribution of air pockets was studied by light microscopy. Uninjected corneas served as controls. RESULTS:Injected air followed a consistent pattern, initially as radial tracks to the limbus, then as circumferential bands along the limbus and finally centripetally to create predominantly a type-1BB. Type-2BB started at the periphery, by air emerging through clusters of tiny fenestrations discovered in the periphery of PDL. Fifteen to 20 such clusters were also seen in control samples on either side of the Descemet's attachment. Type-1BB was formed by air emerging through wide spaces between lamellae of deep stroma. Histologically, the circumferential band revealed an aggregation of air pockets in the mid-stroma. CONCLUSION:The consistent pattern of passage of air is indicative of the architecture and microanatomy of the corneal stroma where collagen lamellae are orthogonally arranged centrally and as a circular annulus at the periphery. The novel peripheral fenestrations explain the peripheral commencement of a type-2BB and the escape of air into the anterior chamber during DALK.
journal_name
Acta Ophthalmoljournal_title
Acta ophthalmologicaauthors
Dua HS,Faraj LA,Kenawy MB,AlTaan S,Elalfy MS,Katamish T,Said DGdoi
10.1111/aos.13460subject
Has Abstractpub_date
2018-02-01 00:00:00pages
69-76issue
1eissn
1755-375Xissn
1755-3768journal_volume
96pub_type
杂志文章abstract:PURPOSE:We aimed to determine prospectively the incidence of abnormal test results on frequency doubling perimetry (FDT), the nerve fibre analyser (GDx) and standard automated perimetry (SAP) in a cohort of glaucoma suspect patients with normal findings for all these tests at baseline. METHODS:Seventy glaucoma suspect...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/j.1755-3768.2008.01279.x
更新日期:2009-06-01 00:00:00
abstract:PURPOSE:The introduction of vascular endothelial growth factor inhibitors for the treatment of exudative age-related macular degeneration (AMD) has increased the referral rates of AMD patients with visual symptoms to treating centres considerably. However, a large proportion of the referred patients do not qualify for ...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/j.1755-3768.2010.02074.x
更新日期:2012-08-01 00:00:00
abstract:PURPOSE:To investigate risk factors for the development of the hypertensive phase after implantation of the Ahmed glaucoma valve (AGV). METHODS:A total of 128 patients who had undergone AGV implantation were included in this study. The hypertensive phase was defined as intraocular pressure (IOP) > 21 mmHg during the f...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.12916
更新日期:2016-08-01 00:00:00
abstract::Vitreomacular traction resulting from lacking, incomplete or anomalous posterior vitreous detachment is suspected to play a crucial role in the pathogenesis of different forms of age-related macular degeneration (AMD) along with the known mechanisms. It is probable that the fundamental pathomechanisms of AMD formation...
journal_title:Acta ophthalmologica
pub_type: 杂志文章,评审
doi:10.1111/j.1755-3768.2008.01210.x
更新日期:2008-08-01 00:00:00
abstract:PURPOSE:A recent threefold increase in laser treatment for advanced retinopathy of prematurity (ROP) triggered a nationwide preschool ophthalmic and developmental status among extremely preterm survivors. Here, we discuss refraction and visual acuity. METHODS:Survivors (n = 178) from a national birth cohort (February ...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.12643
更新日期:2015-06-01 00:00:00
abstract:PURPOSE:The aim of the study was to describe the prevalence of visual impairment and retinopathy and to investigate risk factors for retinopathy in persons with diabetes, screen-detected diabetes, impaired glucose tolerance and normal glucose tolerance in a subpopulation of the HUNT study. METHODS:We used a sample (n ...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/j.1755-3768.2010.01998.x
更新日期:2012-05-01 00:00:00
abstract:PURPOSE:Current evidence indicates that alteration in ocular blood flow may be relevant in open-angle glaucoma (OAG) patients independent of intraocular pressure (IOP). Presently, the lack of an adequate methodology capable of assessing all vascular beds limits the clinical role of blood flow parameters in glaucoma man...
journal_title:Acta ophthalmologica
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1600-0420.2007.01091.x
更新日期:2008-08-01 00:00:00
abstract:PURPOSE:To compare changes in macular pigment optical density (MPOD) and serum lutein concentration between free lutein and lutein esters supplements in healthy Japanese individuals. METHODS:Twenty healthy subjects (age range, 22-47 years) were recruited into this prospective, randomized, doubled-blind comparative stu...
journal_title:Acta ophthalmologica
pub_type: 杂志文章,随机对照试验
doi:10.1111/aos.13106
更新日期:2016-09-01 00:00:00
abstract:PURPOSE:To investigate whether introduction of item-response theory (IRT) analysis, in parallel to the 'traditional' statistical analysis methods available for performance evaluation of multiple T/F items as used in the European Board of Ophthalmology Diploma (EBOD) examination, has proved beneficial, and secondly, to ...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.12135
更新日期:2013-11-01 00:00:00
abstract:PURPOSE:To explore whether the prevalence and severity of retinopathy differ in diabetes cohorts diagnosed through screening as compared with conventional health care. METHODS:A total of 257 diabetes patients, 151 detected through screening and 106 through conventional clinical care, were included. Retinopathy was eva...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.12954
更新日期:2016-05-01 00:00:00
abstract::Corneal refractive surgery disrupts corneal integrity and reduces biomechanical stability in consequence of the beneficial refractive alteration. The minimal invasive cap-based refractive procedure, small-incision lenticule extraction (SMILE), has been proposed to affect corneal integrity less than flap-based procedur...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.13906
更新日期:2019-03-01 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 test the validity of the eyesi surgical simulator as an assessment tool in a virtual reality vitreoretinal training programme. METHODS:In collaboration with an experienced vitreoretinal surgeon, a virtual vitreoretinal training programme was composed on the eyesi surgical simulator, software version 2.9.2 (...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.13209
更新日期:2017-02-01 00:00:00
abstract:PURPOSE:To explore the clinical features, surgical interventions and prognosis of injured eyes following explosion and to develop the risk factors for poor prognosis. METHODS:A nested case-control study. To the date of 31 December 2018, 99 explosion-related eye globes were selected from the Eye Injury Vitrectomy Study...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.14713
更新日期:2021-01-08 00:00:00
abstract:UNLABELLED:In this thesis the term eye amputation (EA) covers the removing of an eye by: evisceration, enucleation and exenteration. Amputation of an eye is most frequently the end-stage in a complicated disease, or the primary treatment in trauma and neoplasm. In 2010 the literature is extensive due to knowledge about...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/j.1755-3768.2010.02039.x
更新日期:2010-12-01 00:00:00
abstract::Data on the association between hypothyroidism and glaucoma are conflicting. We sought to shed light on this by conducting a critical review and meta-analyses. The meta-analyses were conducted in adherence with the widely accepted MOOSE guidelines. Using the Medical Subject Heading (MeSH) terms: hypothyroidism, myxoed...
journal_title:Acta ophthalmologica
pub_type: 杂志文章,meta分析,评审
doi:10.1111/aos.13412
更新日期:2017-12-01 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:PURPOSE:To describe the different clinical presentations of periocular molluscum contagiosum (MC) lesions and their epidemiological, clinical and histopathological features. METHODS:Medical records and histopathological sections of all cases of periocular MC treated at the oculoplastic clinic of the Goldschleger Eye I...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.13717
更新日期:2018-08-01 00:00:00
abstract:PURPOSE:To describe the clinical phenotype and the molecular pathology in a group of patients with congenital stationary night blindness due to mutations in GRM6, a gene encoding the ON bipolar metabotropic glutamate receptor 6 (mGluR6). METHODS:Nine patients from seven families (age range, 7-75; median, 10 years) wit...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/j.1755-3768.2011.02267.x
更新日期:2012-05-01 00:00:00
abstract:PURPOSE:This study aimed to investigate the retinal thickness analyser (RTA) as a means to identify the presence of cystoid macular oedema (CMO) in children with uveitis, whether the course of CMO can be monitored using this method, and whether there is a trend towards a correlation between macular oedema and visual ac...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/j.1600-0420.2007.01009.x
更新日期:2008-05-01 00:00:00
abstract::Endoscopic Cyclophotocoagulation (ECP) is a glaucoma surgery designed to reduce the intraocular pressure (IOP) by partially ablating the ciliary processes to decrease aqueous humour production and secretion. The aim of this paper is to review the literature regarding the background, indications and results of the surg...
journal_title:Acta ophthalmologica
pub_type: 杂志文章,评审
doi:10.1111/aos.12529
更新日期:2015-08-01 00:00:00
abstract:PURPOSE:To investigate serial changes in the bleb wall using anterior segment optical coherence tomography (AS-OCT) in patients who had undergone Ahmed glaucoma valve (AGV) implantation. METHODS:A total of 52 patients who had undergone AGV implantation were enrolled. Reflectivity and mean thickness of the bleb wall we...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.12571
更新日期:2015-06-01 00:00:00
abstract::The development of ophthalmology was greatly restricted in Poland in the 19th century, because it was partitioned and occupied by its three dominant neighbours. Polish medical universities were closed, and in Polish hospitals, only clinical work was possible. Those who wanted to study medicine and become ophthalmologi...
journal_title:Acta ophthalmologica
pub_type: 历史文章,杂志文章
doi:10.1111/j.1755-3768.2009.01856.x
更新日期:2012-03-01 00:00:00
abstract:PURPOSE:Orally administered angiotensin II receptor blockers (ARBs) decrease intraocular pressure (IOP). Topical administration may reduce systemic side effects and result in a useful glaucoma drug. The aim of this study is to test the ocular delivery and pharmacologic effect of nanoparticle eye drops containing ARBs (...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.14639
更新日期:2020-11-16 00:00:00
abstract:PURPOSE:To analyse the anterior lens capsule thickness and ultrastructure changes of intumescent white cataracts in comparison with nuclear cataracts to prove possible structural reasons for surgical difficulties with the intumescent white cataract. METHODS:Anterior lens capsules from 35 eyes with intumescent white an...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/j.1755-3768.2010.02102.x
更新日期:2011-06-01 00:00:00
abstract::Ziv-aflibercept (Zaltrap® ), a recombinant fusion protein that binds diffusible vascular endothelial growth factor (VEGF), is approved for the treatment of metastatic colorectal carcinoma. Its molecular structure is the same as aflibercept (Eylea® ), thus making it an attractive option for the off-label treatment of c...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.14328
更新日期:2019-12-20 00:00:00
abstract:PURPOSE:To study the effect of glaucoma drainage implant (GDI) surgery on corneal topography during the first postoperative year. METHODS:Twenty-one adult glaucoma patients were implanted with a Molteno3 or a Baerveldt 250 GDI. Corneal topography measurements were taken preoperatively and at 6 and 12 months after surg...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.14247
更新日期:2020-05-01 00:00:00
abstract:PURPOSE:To compare the efficacy and safety of collagen matrix implant (Ologen® ; OLO) with mitomycin C (MMC) in phacotrabeculectomy. METHODS:Prospective, single-centre, nonblinded, randomized controlled trial. A total of 53 eyes of 45 patients were enrolled in the study protocol with 27 eyes randomly assigned to OLO a...
journal_title:Acta ophthalmologica
pub_type: 杂志文章,随机对照试验
doi:10.1111/aos.14102
更新日期:2019-09-01 00:00:00
abstract:PURPOSE:To examine preoperative anti-inflammatory treatment on recovery from cataract surgery in eyes of diabetic patients. METHODS:A Prospective randomized clinical trial. One hundred and three eyes of 103 patients with diabetes undergoing routine cataract surgery were randomized (1:1) not to receive any preoperative...
journal_title:Acta ophthalmologica
pub_type: 杂志文章,随机对照试验
doi:10.1111/aos.14018
更新日期:2019-09-01 00:00:00
abstract:PURPOSE:To examine the influence of experimentally reduced cerebrospinal fluid pressure (CSFP) as compared to elevated intraocular pressure (IOP) on axonal morphology and axonal motor proteins in retinal ganglion cells (RGCs). METHODS:The experimental study included 39 rats which underwent cerebrospinal fluid drainage...
journal_title:Acta ophthalmologica
pub_type: 杂志文章
doi:10.1111/aos.12768
更新日期:2016-05-01 00:00:00