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https://www.readbyqxmd.com/read/27914144/outdoor-air-pollution-and-pterygium-in-korea
#1
Ki Woong Lee, Yoon Hyeong Choi, Sung Ha Hwang, Hae Jung Paik, Mee Kum Kim, Won Ryang Wee, Dong Hyun Kim
We investigated relationships between outdoor air pollution and pterygium in Korean adults. This study includes 23,276 adults in population-based cross-sectional data using the Korea National Health and Nutrition Examination Survey 2008-2011. Pterygium was assessed using slit lamp biomicroscopy. Air pollution data (humidity, particulate matter with aerodynamic diameter less than 10 μm [PM₁₀], ozone [O₃], nitrogen dioxide [NO₂], and sulfur dioxide levels [SO₂]) for 2 years preceding the ocular examinations were acquired...
January 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/27911425/-biometric-parameters-of-vitrectomized-eyes
#2
S V Asatryan, V K Surguch, S I Kharlap, T A Shchegoleva
AIM: To analyze changes in various biometric parameters after vitrectomy. MATERIAL AND METHODS: A total of 50 patients (50 eyes) were followed up. All of them underwent vitrectomy for idiopathic epiretinal fibrosis and macular hole. In addition to the standard ophthalmic examination, we performed a combined ultrasound study and ultrasound biomicroscopy before and after the surgery (at 2-3 weeks and 6 months). Variation statistics was applied to assess the results using the SPSS Statistica 20 software...
2016: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/27911420/-role-of-immunological-factors-in-the-development-of-myopic-choroidal-neovascularization
#3
A G Shchuko, N V Zaitseva, T N Yur'eva, E R Chernykh, I M Mikhalevich, A V Grigor'eva
AIM: To study the concentration of cytokines in the aqueous humor of the anterior chamber in patients with myopic choroidal neovascularization (mCNV) and to compare the results to their ophthalmic status. MATERIAL AND METHODS: A total of 19 patients (19 eyes) with mCNV treated with intravitreal ranibizumab were included in the study. The control group consisted of 15 patients (15 eyes) with myopia who had cataract surgery. Age, sex, and refractive error distribution were similar to that in the study group...
2016: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/27911101/in-vivo-and-ex-vivo-evaluation-of-inflammation-and-apoptosis-induced-after-smile-procedures-for-different-refractive-error-range
#4
Leonardo Mastropasqua, Roberta Calienno, Claudia Curcio, Rodolfo Mastropasqua, Mario Nubile, Niccolò Salgari, Manuela Lanzini
PURPOSE: To detect corneal inflammation and apoptosis induced after small incision lenticule extraction (SMILE) at different refractive corrections for moderate to high values of myopia. METHODS: Fifty patients (50 eyes) suffering from medium to high myopia (spherical equivalent refraction from -3.75 to -10.00 diopters (D) with refractive astigmatism under -0.75 D) underwent SMILE in order to correct myopic error. In vivo evaluation was done by corneal confocal microscopy (IVCM) and ex vivo by immunohistochemistry...
December 2, 2016: Current Eye Research
https://www.readbyqxmd.com/read/27907165/pre-and-postcycloplegic-refractions-in-children-and-adolescents
#5
Dan Zhu, Yan Wang, Xianrong Yang, Dayong Yang, Kai Guo, Yuanyuan Guo, Xinxia Jing, Chen-Wei Pan
PURPOSE: To determine the difference between cycloplegic and non-cycloplegic refractive error and its associated factors in Chinese children and adolescents with a high prevalence of myopia. METHODS: A school-based study including 1565 students aged 6 to 21 years was conducted in 2013 in Ejina, Inner Mongolia, China. Comprehensive eye examinations were performed. Pre-and postcycloplegic refractive error were measured using an auto-refractor. For cycloplegic refraction, one drop of topical 1...
2016: PloS One
https://www.readbyqxmd.com/read/27898450/update-on-treating-high-myopia-with-implantable-collamer-lenses
#6
Xiaoying Wang, Xingtao Zhou
The purpose of this article is to provide updates on the treatment of high myopia with the implantable collamer lens (ICL). The ICL has become an important technique used in intraocular refractive surgery. With improvements in material, design, and application, the ICL has good efficacy, predictability, long-term safety and stability, manageable complications, and reversibility. More and more refractive surgeons are taking note of the ICL. This article reviews the material characteristics and the latest designs of the ICL along with the clinical applications, visual quality, and future development...
November 2016: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/27898449/modern-phacoemulsification-and-intraocular-lens-implantation-refractive-lens-exchange-is-safe-and-effective-in-treating-high-myopia
#7
Bhaskar Srinivasan, Hiu Ying Leung, He Cao, Shu Liu, Lizhen Chen, Alex Hoi Fan
Improved efficacy, predictability, and safety of modern phacoemulsification have resulted in cataract surgery being considered as a refractive procedure. Refractive lens exchange by definition is a surgery aimed at replacing the cataractous or clear crystalline lens with an intraocular lens (IOL) in cases of high ametropia. The excellent intraocular optics of this procedure provide a better visual outcome as compared with laser refractive surgery in high myopia. With advances in technology and IOL formulas, the predictability of refractive outcome after cataract surgery in high myopes has improved...
November 2016: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/27898448/laser-vision-correction-in-treating-myopia
#8
Germano Leal Ehlke, Ronald R Krueger
Myopia is a generally benign refractive error with an increasing prevalence worldwide. It can be corrected temporarily with glasses and contact lenses and permanently with laser vision correction. The 2 main procedures currently being performed for myopia correction are photorefractive keratectomy and laser-assisted in situ keratomileusis. Each technique has its advantages, but they appear to yield similar visual outcomes 1 year after surgery. Laser vision correction for myopia was considered a paradigm shift because healthy eyes could now undergo a surgical procedure to permanently and safely correct the error by altering the center of the cornea, which was previously off limits because of the potential for loss of transparency...
November 2016: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/27898447/a-review-of-the-potential-factors-influencing-myopia-progression-in-children-using-orthokeratology
#9
Xiao Yang, Zhouyue Li, Junwen Zeng
Myopia has become a worldwide public health issue. Recent studies have consistently reported that orthokeratology (Ortho-K) significantly inhibits the progression of myopia by slowing the elongation of axial length. It has been hypothesized that this effect results from the induction of peripheral myopic defocus, which is a result of the effects of the Ortho-K lenses on the midperipheral corneal topography. Previous studies have investigated the relationship between predicting factors and the inhibitory effect of Ortho-K for slowing childhood myopic progression and found some meaningful results; however, some of the findings are controversial...
November 2016: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/27898446/topical-atropine-in-the-control-of-myopia
#10
Donald Tan, Su Ann Tay, Kai-Lyn Loh, Audrey Chia
Efforts to reduce myopia progression in childhood are driven by the increasing incidence of high myopia and its attendant health risks. Interventional approaches to reduce myopia progression in childhood have included the use of spectacles, contact lens, and pharmacological methods, of which the latter appear to be most promising. We review the use of topical atropine eye drops in the retardation of myopia progression in children and discuss the efficacy and safety profiles when used at different concentrations (1...
November 2016: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/27898445/pathologic-myopia
#11
Kyoko Ohno-Matsui
Pathologic myopia (PM) is the only myopia that causes the loss of best-corrected visual acuity. The main reason for best-corrected visual acuity loss is complications specific to PM, such as myopic maculopathy, myopic traction maculopathy, and myopic optic neuropathy (or glaucoma). The meta-analyses of the PM study group (META-PM study) made a classification system for myopic maculopathy. On the basis of this study, PM has been defined as eyes having atrophic changes equal to or more severe than diffuse atrophy...
November 2016: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/27898444/what-twin-studies-have-taught-us-about-myopia
#12
Yanxian Chen, Wei Wang, Xiaotong Han, William Yan, Mingguang He
Myopia has become epidemic, particularly in East Asia, and is a major cause of visual impairment worldwide. Twin studies are an important resource to investigate the genetics and the gene-environment interaction in myopia. This article aims to provide an overview of major findings regarding myopia from different types of twin studies, from the heritability of myopia-related traits to novel findings of genome-wide association studies. In the postgenomic era, twin studies will continue to serve as a unique method in the investigation of gene-environment interaction...
November 2016: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/27898443/environmental-factors-and-myopia-paradoxes-and-prospects-for-prevention
#13
Kathryn Ailsa Rose, Amanda Nicole French, Ian George Morgan
The prevalence of myopia in developed countries in East and Southeast Asia has increased to more than 80% in children completing schooling, whereas that of high myopia has increased to 10%-20%. This poses significant challenges for correction of refractive errors and the management of pathological high myopia. Prevention is therefore an important priority. Myopia is etiologically heterogeneous, with a low level of myopia of clearly genetic origins that appears without exposure to risk factors. The big increases have occurred in school myopia, driven by increasing educational pressures in combination with limited amounts of time spent outdoors...
November 2016: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/27898442/epidemiology-of-pathologic-myopia-in-asia-and-worldwide
#14
Yee-Ling Wong, Seang-Mei Saw
The myopia epidemic in Asia is evident because the prevalence of high myopia among young adults is higher among Asian (6.8%-21.6%) compared with non-Asian populations (2.0%-2.3%). High myopia is linked to pathologic myopia (PM), which may cause irreversible visual impairment (VI). This review will highlight updates on the prevalence of PM and the associated VI from PM. The prevalence of PM among the middle-aged and elderly (0.9%-3.1%) is higher than the prevalence among children and adolescents (<0.2%). The PM lesions detected among older adults include advanced lesions, such as posterior staphyloma, chorioretinal atrophy, lacquer cracks, and Fuchs spot (in descending frequency of occurrence)...
November 2016: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/27898441/epidemiology-of-myopia
#15
Pei-Chang Wu, Hsiu-Mei Huang, Hun-Ju Yu, Po-Chiung Fang, Chueh-Tan Chen
Myopia is not a simple refractive error, but an eyesight-threatening disease. There is a high prevalence of myopia, 80% to 90%, in young adults in East Asia; myopia has become the leading cause of blindness in this area. As the myopic population increases globally, the severity of its impact is predicted. Approximately one fifth of the myopic population has high myopia (≥-6 diopters), which results in irreversible vision loss such as retinal detachment, choroidal neovascularization, cataracts, glaucoma, and macular atrophy...
November 2016: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/27898440/myopia-from-research-to-practice
#16
Ian G Morgan, Mingguang He, Seang Mei Saw, Ronald R Krueger, Dennis S C Lam
No abstract text is available yet for this article.
November 2016: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/27896533/characteristics-of-higher-order-aberrations-and-anterior-segment-tomography-in-patients-with-pathologic-myopia
#17
Kaori Kasahara, Naoyuki Maeda, Takashi Fujikado, Makoto Tomita, Muka Moriyama, Mutsumi Fuchihata, Kyoko Ohno-Matsui
PURPOSE: To investigate prospectively the characteristics in the higher-order aberrations and anterior segment tomography in patients with pathologic myopia. METHODS: One hundred and twelve consecutive highly myopic patients (mean age 43.4 ± 9.3 years, spherical equivalent of refractive error ≥8 D and an axial length ≥26.5 mm) were studied. Thirty-seven emmetropic individuals (mean age 37.0 ± 14.5 years, spherical equivalent of refractive error ≤ ±1 D) were analyzed as controls...
November 28, 2016: International Ophthalmology
https://www.readbyqxmd.com/read/27893548/pressureless-orbital-decompression-for-myopic-proptosis
#18
Saul N Rajak, Richard A McGovern, Dinesh Selva
Orbital decompression surgery increases the orbital volume. It has rarely been used for proptosis of the large highly myopic globe. However, external decompression surgery carries significant risks because of the large thin-walled globe. The authors report the first use of endoscopic medial wall orbital decompression surgery in this setting to obviate the risk of globe pressure.Endoscopic medial wall decompression brought about a 4 mm reduction of proptosis, correction of exotropia and elimination of retrobulbar ache providing good symmetry with the fellow eye...
November 23, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27893524/visual-outcomes-after-smile-lasek-and-lasek-combined-with-corneal-collagen-cross-linking-for-high-myopic-correction
#19
Sangyoon Hyun, Seongjun Lee, Jae-Hyung Kim
PURPOSE: To compare the visual and refractive outcomes of small-incision lenticule extraction (SMILE), laser-assisted subepithelial keratomileusis (LASEK), and LASEK combined with corneal collagen cross-linking (LASEK-CXL) surgery for high-degree myopia. METHODS: Medical records of patients with spherical equivalent (SE) greater than -6.00 diopters (D) treated with SMILE, LASEK, and LASEK-CXL were reviewed. Uncorrected distance visual acuity (UCVA), SE, and corneal haze were followed up in the 3 groups for 6 months...
November 23, 2016: Cornea
https://www.readbyqxmd.com/read/27893094/comparison-of-patient-specific-computational-modeling-predictions-and-clinical-outcomes-of-lasik-for-myopia
#20
Ibrahim Seven, Ali Vahdati, Vinicius Silbiger De Stefano, Ronald R Krueger, William J Dupps
Purpose: To assess the predictive accuracy of simulation-based LASIK outcomes. Methods: Preoperative and 3-month post-LASIK tomographic data from 20 eyes of 12 patients who underwent wavefront-optimized LASIK for myopia were obtained retrospectively. Patient-specific finite element models were created and case-specific treatment settings were simulated. Simulated keratometry (SimK) values and the mean tangential curvature of the central 3 mm (Kmean) were obtained from the anterior surfaces of the clinical tomographies, and computational models were compared...
November 1, 2016: Investigative Ophthalmology & Visual Science
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