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BMC Ophthalmology

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https://www.readbyqxmd.com/read/28427356/postural-effects-on-intraocular-pressure-and-ocular-perfusion-pressure-in-patients-with-non-arteritic-anterior-ischemic-optic-neuropathy
#1
Jee Myung Yang, Sang Woo Park, Yong Sok Ji, Jaeryung Kim, Chungkwon Yoo, Hwan Heo
BACKGROUND: To investigate postural effects on intraocular pressure (IOP) and ocular perfusion pressure (OPP) in patients with non-arteritic ischemic optic neuropathy (NAION). METHODS: IOP and blood pressure (BP) were measured in 20 patients with unilateral NAION 10 min after changing to each of the following positions sequentially: sitting, supine, right lateral decubitus position (LDP), supine, left LDP, and supine. IOP was measured using a rebound tonometer and OPP was calculated using formulas based on mean BP...
April 20, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28420348/lower-incidence-of-contrast-induced-nephropathy-in-patients-undergoing-fluorescent-angiography
#2
Ji Hwan Lee, Byunghoon Chung, Sung Chul Lee, Sung Soo Kim, Hyoung Jun Koh, Christopher Seungkyu Lee
BACKGROUND: To evaluate the incidence and risk factors of contrast-induced nephropathy (CIN) in patients undergoing fluorescein angiography (FA). METHODS: One hundred sixty patients who underwent FA as a part of ophthalmic examination and had serum creatinine (SCr) results within 24 h before FA and within 72 h after FA between 2005 and 2013 at a tertiary medical center were included. According to baseline SCr levels, the subjects were divided into low-risk group (<1...
April 19, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28399831/characteristics-of-cases-needing-advanced-treatment-for-intractable-posner-schlossman-syndrome
#3
Kazuichi Maruyama, Yuko Maruyama, Sunao Sugita, Kazuhiko Mori, Yu Yokoyama, Shiho Sanuki-Kunimatsu, Hiroko Nakagawa, Shigeru Kinoshita, Manabu Mochizuki, Toru Nakazawa
BACKGROUND: In Posner-Schlossman syndrome (PSS), which is characterized by recurrent unilateral attacks of ocular hypertension. Surgical treatment is sometimes necessary because intraocular pressure (IOP) cannot be controlled with anti-glaucoma medications. To identify the clinical features of Posner-Schlossman syndrome (PSS) indicative of the need for intraocular pressure (IOP)-controlling surgery. METHODS: This study was a retrospective case-series analysis of the clinical charts of 33 patients diagnosed with PSS, who underwent surgery to control IOP or received medication only...
April 11, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28390411/prediction-accuracy-of-intraocular-lens-power-calculation-methods-after-laser-refractive-surgery
#4
Yubo Wu, Songyu Liu, Rongfeng Liao
BACKGROUND: This study aimed to evaluate the prediction accuracy of postoperative refractions using partial coherence interferometry (IOL-Master) and applanation ultrasound (AL-3000) assisted with corneal topography (TMS-4) in eyes that had undergone myopic laser-assisted in situ keratomileusis (LASIK). METHODS: Haigis-L formula, Koch-Maloney method using Haigis formula, Shammas clinically derived K-value (simulated keratometric value) correction (Shammas c.d.) using Haigis formula, and Shammas post-LASIK (Shammas-PL) formula were used in eyes with myopic LASIK...
April 8, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28388896/comparison-of-ocular-higher-order-aberrations-after-smile-and-wavefront-guided-femtosecond-lasik-for-myopia
#5
Xiaoqin Chen, Yan Wang, Jiamei Zhang, Shun-Nan Yang, Xiaojing Li, Lin Zhang
BACKGROUND: To compare changes in higher-order aberrations (HOAs) following small incision lenticule extraction (SMILE) and wavefront-guided femtosecond laser-assisted in situ keratomileusis (WFG FS-LASIK), and to investigate correlations between preoperative spherical equivalence (SE) and components of HOAs affecting visual quality. METHODS: Sixty-five myopic eyes from 38 patients were enrolled in the study retrospectively, either having undergone SMILE or WFG FS-LASIK...
April 7, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28388885/the-influence-of-actin-depolymerization-induced-by-cytochalasin-d-and-mechanical-stretch-on-interleukin-8-expression-and-jnk-phosphorylation-levels-in-human-retinal-pigment-epithelial-cells
#6
Meng Gao, Shen Wu, Jing Ji, JingXue Zhang, Qian Liu, YanKun Yue, Lu Liu, XinXin Liu, Wu Liu
BACKGROUND: This study explores the role of actin cytoskeleton depolymerization induced by Cytochalasin D and mechanical stretch on the interleukin-8 (IL-8) expression and c-jun N-terminal kinase (JNK) phosphorylation levels in human retinal pigment epithelial (RPE) cells. METHODS: A Flexcell FX-5000 Tension system was used to apply cyclic stretch to cultured human RPE cells (ARPE-19) at 0.33 Hz with 20% elongation for 0 h, 6 h or 24 h. The cells were stretched alone or pre-treated with Cytochalasin D...
April 7, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28381247/outcomes-of-descemet-stripping-automated-endothelial-keratoplasty-using-imported-donor-corneas
#7
Kaevalin Lekhanont, Kavin Vanikieti, Nutthida Nimvorapun, Varintorn Chuckpaiwong
BACKGROUND: The lack of development of local donor tissue acquisition in several regions of the world has resulted in the necessity of performing keratoplasty with imported donor corneas. The greatest concern about the use of donor corneas supplied by foreign eye banks is the effect of the increased donor death-to-operation time which inevitably occurs during the tissue recovery, tissue processing, and tissue transfer between the countries. The purpose of this study was to report the outcomes of descemet stripping automated endothelial keratoplasty (DSAEK) using imported donor corneas...
April 5, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28376826/the-risk-of-cataractogenesis-after-gamma-knife-radiosurgery-a-nationwide-population-based-case-control-study
#8
Cheng-Loong Liang, Po-Chou Liliang, Tai-Been Chen, Huan-Chen Hsu, Fu-Cheng Chuang, Kuo-Wei Wang, Hao-Kuang Wang, San-Nan Yang, Han-Jung Chen
BACKGROUND: Medical radiation is considered a factor responsible for cataractogenesis. However, the incidence of this ophthalmologic complication resulting from gamma knife radiosurgery (GKRS) has not yet been reported. The present study aimed to determine the risk of cataractogenesis associated with radiation exposure from GKRS. METHODS: This study used information from a random sample of one million persons enrolled in the nationally representative Taiwan National Health Insurance Research Database...
April 4, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28376748/reproducibility-of-macular-ganglion-cell-inner-plexiform-layer-thickness-in-normal-eyes-determined-by-two-different-oct-scanning-protocols
#9
Xiaoyu Xu, Xinxing Guo, Hui Xiao, Lan Mi, Xiangxi Chen, Xing Liu
BACKGROUND: To investigate the reproducibility of macular ganglion cell-inner plexiform layer (GCIPL) thickness measurement in normal eyes determined by different operators and two different raster scanning protocols of Cirrus high-definition optical coherence tomography (HD-OCT). METHODS: One hundred and two eyes of 102 normal subjects were scanned three times using Cirrus HD-OCT with Macular Cube 512 × 128 protocol by two operators, respectively. Three extra scans were obtained using Macular Cube 200 × 200 protocol...
April 4, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28376733/efficacy-of-intravitreal-injection-of-2-methoxyestradiol-in-regression-of-neovascularization-of-a-retinopathy-of-prematurity-rat-model
#10
Azza Mohamed Ahmed Said, Rania Gamal Eldin Zaki, Rania A Salah Eldin, Maha Nasr, Samar Saad Azab, Yaser Abdelmageuid Elzankalony
BACKGROUND: Retinopathy of prematurity (ROP) is one of the targets for early detection and treatment to prevent childhood blindness in world health organization programs. The purpose of study was to evaluate the efficacy of intravitreal injection of 2-Methoxyestradiol (2-ME) nanoemulsion in regressing neovascularization of a ROP rat model. METHODS: A prospective comparative case - control animal study conducted on 56 eyes of 28 healthy new born Sprague Dawley male albino rat...
April 4, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28376729/iris-reconstruction-using-autologous-iris-preserved-in-cold-balanced-salt-solution-for-8-hours-in-iatrogenic-total-iridodialysis-during-cataract-surgery-a-case-report
#11
Seung Pil Bang, Jong Hwa Jun
BACKGROUND: A large iris defect or extensive iridodialysis can be an intractable cause of visual disturbance, photophobia, glare, monocular diplopia, or cosmetic deformity. The implantation of an artificial iris substitute could be an effective option, but this can cause a reduction in endothelial cell density. We succeeded in the anatomical restoration of iris tissue that was totally dialyzed out of the eye, and was preserved in cold balanced salt solution for 8 h. Engrafted iris tissue was maintained within the aqueous humor...
April 4, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28359272/effects-of-chalazia-on-corneal-astigmatism-large-sized-chalazia-in-middle-upper-eyelids-compress-the-cornea-and-induce-the-corneal-astigmatism
#12
Ki Won Jin, Young Joo Shin, Joon Young Hyon
BACKGROUND: A chalazion is a common eyelid disease that causes eye morbidity due to inflammation and cosmetic disfigurement. Corneal topographic changes are important factors in corneal refractive surgery, intraocular lens power calculations for cataract surgery, and visual acuity assessments. However, the effects of chalazia on corneal astigmatism have not been thoroughly investigated. The changes in corneal astigmatism according to chalazion size and location is necessary for better outcome of ocular surgery...
March 31, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28356143/reverse-pupillary-block-after-implantation-of-a-scleral-sutured-posterior-chamber-intraocular-lens-a-retrospective-open-study
#13
Seung Pil Bang, Choun-Ki Joo, Jong Hwa Jun
BACKGROUND: To report the clinical features of patients with reverse pupillary block (RPB) after scleral-sutured posterior chamber intraocular lens (PC IOL) implantation and biometric changes after laser peripheral iridotomy (LPI). METHODS: Eight patients attending our hospital's ophthalmology outpatient clinic, who developed RPB after implantation of a scleral-sutured PC IOL due to subluxation of the crystalline lens or IOL, were investigated in this retrospective, observational study...
March 29, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28356099/corneal-densitometry-changes-in-a-patient-with-interface-fluid-syndrome-after-small-incision-lenticule-extraction
#14
Ke Zheng, Tian Han, Meiyan Li, Yinan Han, Ye Xu, Rupal Shah, Xingtao Zhou
BACKGROUND: To report a case of interface fluid syndrome (IFS) following small incision lenticule extraction (SMILE) evaluated with corneal densitometry and optical coherence tomography (OCT). CASE PRESENTATION: An 18-year-old man reported sudden vision loss 24 days after SMILE procedure. Intraocular pressure (IOP) was 36.3 mmHg (OD) and 36.7 mmHg (OS) by noncontact tonometry. Moderate corneal edema, interface fluid pocket and haze were observed by OCT and confirmed by corneal densitometry values...
March 29, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28356087/evaluation-of-ocular-pulse-amplitude-in-non-arteritic-anterior-ischaemic-optic-neuropathy
#15
Durgul Acan, Omer Karti, Tuncay Kusbeci
BACKGROUND: To evaluate the ocular pulse amplitude (OPA) in patients with chronic non-arteritic anterior ischaemic optic neuropathy (NAION). METHODS: This cross-sectional study comprised a study group of 30 eyes from 30 patients with NAION and a control group of 31 eyes from 31 age and gender-matched healthy subjects. Bilateral OPA was measured with dynamic contour tonometry (DCT) and was compared between the study and control groups. RESULTS: No statistically significant difference was found between the study and control groups in terms of hypertension, diabetes mellitus, ischaemic heart disease and hyperlipidemia...
March 29, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28351353/the-impact-of-ocular-trauma-during-the-nepal-earthquake-in-2015
#16
E Pradhan, B Limbu, S Thakali, N S Jain, R Gurung, S Ruit
BACKGROUND: Nepal was struck by a massive earthquake on the 25th April 2015 and major aftershock on the 12th of May 2015, resulting in widespread devastation with a death toll in the thousands. The burden of ocular trauma resulting from the recent earthquakes in Nepal has not been described thus far. The aim of this study was to determine the types of ocular injuries sustained in the earthquake in Nepal and its management in Tilganga Institute of Ophthalmology (TIO) in Gaushala, Kathmandu...
March 28, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28335747/effects-of-diurnal-lighting-and-angle-of-incidence-variation-on-anterior-segment-optical-coherence-tomography-as-oct-angle-metrics
#17
Handan Akil, Anna Dastiridou, Kenneth Marion, Brian A Francis, Vikas Chopra
BACKGROUND: First reported study to assess the effect of diurnal variation on anterior chamber angle measurements, as well as, to re-test the effects of lighting and angle-of-incidence variation on anterior chamber angle (ACA) measurements acquired by time-domain anterior segment optical coherence tomography (AS-OCT). METHODS: A total of 30 eyes from 15 healthy, normal subjects underwent anterior chamber imaging using a Visante time-domain AS-OCT according to an IRB-approved protocol...
March 23, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28327135/stratification-of-phaco-trabectome-surgery-results-using-a-glaucoma-severity-index-in-a-retrospective-analysis
#18
Pritha Roy, Ralitsa T Loewen, Yalong Dang, Hardik A Parikh, Igor I Bussel, Nils A Loewen
BACKGROUND: To stratify the outcomes of phacoemulsification combined with trabectome surgery using a new glaucoma severity index. METHODS: This is a retrospective, observational cohort study that included open angle glaucoma patients with visually significant cataract that had phacoemulsification combined with trabectome surgery. Exclusion criteria were follow-up less than 12 months, any other surgeries or diagnosis of neovascular or active uveitic glaucoma. Patients were stratified into four groups according to the Glaucoma Index (GI) that incorporated preoperative intraocular pressure (IOP), number of medications and visual field status...
March 21, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28302098/in-vivo-confocal-microscopy-of-pre-descemet-corneal-dystrophy-associated-with-x-linked-ichthyosis-a-case-report
#19
Hui Shi, Xiao-Feng Qi, Tao-Tao Liu, Qian Hao, Xiao-Hong Li, Ling-Ling Liang, Yi-Miao Wang, Zhi-Hua Cui
BACKGROUND: Pre-Descemet corneal dystrophy (PDCD) is characterized by the presence of numerous, tiny, polymorphic opacities immediately anterior to Descemet membrane, which is a rare form of corneal stromal dystrophy and hard to be diagnosed. In vivo confocal microscopy (IVCM) is a useful tool to examine the minimal lesions of the cornea at the cellular level. In this article, we report a rare case of PDCD associated with X-linked ichthyosis and evaluate IVCM findings. CASE PRESENTATION: We present a 34-year-old male Chinese patient with PDCD associated with X-linked ichthyosis...
March 16, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28292276/effect-of-modified-graded-recession-and-anteriorization-on-unilateral-superior-oblique-palsy-a-retrospective-study
#20
Dong Cheol Lee, Se Youp Lee
BACKGROUND: Several inferior oblique (IO) weakening methods exist for correction of superior oblique palsy (SOP). A previously reported method involved recession and anteriorization according to IO overaction (IOOA) grade, which might be subjective and cause upgaze limitation and opposite vertical strabismus. Therefore, this study attempted to examine the efficacy of modified graded recession and anteriorization of the IO muscle in correction of unilateral SOP without resulting in upgaze limitation or opposite vertical strabismus...
March 14, 2017: BMC Ophthalmology
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