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Myopic and eye study

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https://www.readbyqxmd.com/read/28730114/diagnostic-capability-of-peripapillary-retinal-nerve-fiber-layer-parameters-in-time-domain-versus-spectral-domain-optical-coherence-tomography-for-assessing-glaucoma-in-high-myopia
#1
Mei-Ching Teng, Yi-Chieh Poon, Kuo-Chi Hung, Hsueh-Wen Chang, Ing-Chou Lai, Jen-Chia Tsai, Pei-Wen Lin, Chien-Yun Wu, Chueh-Tan Chen, Pei-Chang Wu
AIM: To evaluate and compare the diagnostic capabilities of peripapillary retinal nerve fiber layer (p-RNFL) parameters of Spectralis optical coherence tomography (OCT) versus Stratus OCT to detect glaucoma in patients with high myopia. METHODS: This is a retrospective, cross-sectional study. Sixty highly myopic eyes of 60 patients were enrolled, with 30 eyes in the glaucoma group and 30 eyes in the control group. All eyes received peripapillary imaging of the optic disc using Stratus and Spectralis OCT...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28721006/incidence-of-outer-retinal-tubulation-in-eyes-with-choroidal-neovascularization-under-intravitreal-anti-vascular-endothelial-growth-factor-therapy-in-a-japanese-population
#2
Seiji Takagi, Michiko Mandai, Noriko Miyamoto, Akihiro Nishida, Yasuhiko Hirami, Hirofumi Uyama, Midori Yamamoto, Masayo Takahashi, Goji Tomita, Yasuo Kurimoto
PURPOSE: The purpose of this study was to investigate the occurrence of outer retinal tubulation (ORT) among patients with different types of choroidal neovascularization (CNV) over time. MATERIALS AND METHODS: In this retrospective chart review, disease type was classified as typical age-related macular degeneration (t-AMD), polypoidal choroidal vasculopathy (PCV), retinal angiomatous proliferation (RAP), or myopic CNV (mCNV). Spectral domain-optical coherence tomography (SD-OCT) images were evaluated for the appearance of ORT and subretinal fibrosis and fluid...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28721004/epithelium-on-photorefractive-intrastromal-cross-linking-pixl-for-reduction-of-low-myopia
#3
Wee Kiak Lim, Zhi Da Soh, Harold Kah Yen Choi, Julian Thiam Siew Theng
PURPOSE: To report the 9-12-month outcomes of a novel procedure for reduction of low myopia through epithelium-on photorefractive intrastromal cross-linking (PiXL) with customized control of topographic distribution of ultraviolet (UV)-fluence. METHOD: Myopic patients with normal (non-ectatic) corneas underwent the PiXL procedure for reduction of low myopia. PiXL treatments were delivered through selective application of UVA light based on the refractive error of each patient...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28718904/autologous-serum-eye-drops-and-enhanced-epithelial-healing-time-after-photorefractive-keratectomy
#4
Hanife Tuba Akcam, Metin Unlu, Emine Esra Karaca, Hulya Yazici, Bahri Aydin, Ahmet Murad Hondur
BACKGROUND: The aim of the study is to test whether use of autologous serum eye-drops can provide earlier epithelial healing following the application of photorefractive keratectomy. METHOD: Sixty patients (60 eyes) underwent photorefractive keratectomy for myopia. Thirty eyes received autologous serum drops (Study group) while 30 eyes received conventional artificial tears (Control group) after photorefractive keratectomy. An 8 mm epithelial opening was prepared with the application of 18 per cent alcohol for 20 seconds...
July 18, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28716601/changes-in-refractive-status-in-an-elderly-chinese-population-in-a-7-year-follow-up-the-shihpai-eye-study
#5
Tung-Mei Kuang, Su-Ying Tsai, Catherine Jiu-Ling Liu, Yu-Chieh Ko, Shui-Mei Lee, Pesus Chou
BACKGROUND: Refractive error is the major cause of moderate and severe visual impairment. Visual impairment limits people's ability to perform daily tasks and affects their quality of life. Longitudinal data on the refractive status of the elderly was available only for whites and Africans. The purpose of this study was to report the 7-year incidence of myopia, hyperopia and refractive error change as well as their associated risk factors in a metropolitan elderly Chinese population. METHODS: The Shihpai Eye Study 2006 included 460/824 (55...
July 14, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28711218/significant-axial-elongation-with-minimal-change-in-refraction-in-3-to-6-year-old-chinese-preschoolers-the-shenzhen-kindergarten-eye-study
#6
Xinxing Guo, Min Fu, Xiaohu Ding, Ian G Morgan, Yangfa Zeng, Mingguang He
PURPOSE: To document the distribution of ocular biometry and to evaluate its associations with refraction in a group of Chinese preschoolers. DESIGN: Population-based cross-sectional study. PARTICIPANTS: A total of 1133 preschoolers 3 to 6 years of age from 8 representative kindergartens. METHODS: Biometric measurements including axial length (AL), anterior chamber depth (ACD), and corneal radius of curvature (CR) were obtained from partial-coherence laser interferometry (IOL Master; Carl Zeiss Meditec, Oberkochen, Germany) before cycloplegia...
July 13, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28700139/oct-layered-tomography-of-the-cornea-provides-new-insights-on-remodeling-after-photorefractive-keratectomy
#7
Rachana S Chandapura, Rohit Shetty, Rushad Shroff, Neha Shilpy, Mathew Francis, Abhijit Sinha Roy
OCT topography of corneal layers was generated to analyze the remodeling of the epithelium and stroma after photorefractive keratectomy (PRK). Myopic PRK was performed in 15 patients. One eye underwent manual scraping of epithelium while the other was treated with Epi clear™. Epi clear allowed a gentler removal of the epithelium compared to manual scraping. Scheimpflug (Pentacam™, OCULUS Optikgerate Gmbh, Germany) and OCT (RTVue™, Optovue Inc., USA) scan of the cornea was performed before and after PRK (3 months)...
July 12, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28696042/reduced-vision-in-highly-myopic-eyes-without-ocular-pathology-the-zoc-bhvi-high-myopia-study
#8
Monica Jong, Padmaja Sankaridurg, Wayne Li, Serge Resnikoff, Kovin Naidoo, Mingguang He
BACKGROUND: The aim was to investigate the relationship of the magnitude of myopia with visual acuity in highly myopic eyes without ocular pathology. METHODS: Twelve hundred and ninety-two highly myopic eyes (up to -6.00 DS both eyes, no astigmatic cut-off) with no ocular pathology from the ZOC-BHVI high myopia study in China, had cycloplegic refraction, followed by subjective refraction and visual acuities and axial length measurement. Two logistic regression models were undertaken to test the association of age, gender, refractive error, axial length and parental myopia with reduced vision...
July 11, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28692639/treatment-of-myopic-foveoschisis-with-air-versus-perfluoropropane-a-retrospective-study
#9
Jing Jiang, Xiaoyu Yu, Fanglin He, Linna Lu, Yiwen Qian, Zhenzhen Zhang, Dongqing Zhu, Xiaofang Xu, Zhiliang Wang
BACKGROUND The aim of this study was to compare the efficacy of air and perfluoropropane (C3F8) combined with vitrectomy to treat myopic foveoschisis (MF). MATERIAL AND METHODS A retrospective comparison of a consecutive series of surgical patients was performed. Ninety-seven eyes of 91 patients with MF were assigned to undergo 23G vitrectomy. After internal limiting membrane (ILM) peeling, the vitreous cavity was filled with air in 48 eyes of 45 patients (Air Group). Fluid-air exchange was performed in 49 eyes of 46 patients (C3F8 Group) followed by an injection of 14% C3F8...
July 10, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28687852/optical-coherence-tomographic-imaging-of-posterior-episclera-and-tenon-s-capsule
#10
Kyoko Ohno-Matsui, Yuxin Fang, Kei Morohoshi, Jost B Jonas
Purpose: To investigate structural features of the posterior episclera and Tenon's capsule in patients with high myopia. Methods: This hospital-based observational study included highly myopic eyes (myopic refractive error > -8 diopters or axial length ≥26.5 mm) in which the posterior sclera in its full thickness could be visualized on swept-source optical coherence tomography (OCT) images in all 12 radial scans centered on the fovea. We assessed the posterior episclera and Tenon's capsule...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28686709/axial-length-changes-in-highly-myopic-eyes-and-influence-of-myopic-macular-complications-in-japanese-adults
#11
Hideharu Ohsugi, Yasushi Ikuno, Tomohiro Shoujou, Kanako Oshima, Eiko Ohsugi, Hitoshi Tabuchi
PURPOSE: To investigate changes of the axial length in normal eyes and highly myopic eyes and influence of myopic macular complications in Japanese adults. STUDY DESIGN: Retrospective longitudinal case series. METHODS: The changes in the axial length of 316 eyes from 316 patients (mean age, 63.8 ± 9.0 years; range, 34-82; 240 females) examined using IOLMaster with a follow-up period of at least 1 year were studied. This study included 85 non-highly myopic eyes (|refractive error| ≤ 5 diopters; 63 females; non-highly myopic group), 165 highly myopic eyes (refractive error ≤ -6 diopters or axial length ≥ 26 mm; 124 females) without macular complications (no complications group), 32 eyes (25 females) with myopic traction maculopathy (MTM group), and 34 eyes (28 females) with myopic choroidal neovascularization (CNV group)...
2017: PloS One
https://www.readbyqxmd.com/read/28681907/corneal-asphericity-and-iol-power-calculation-in-eyes-with-aspherical-iols
#12
Giacomo Savini, Kenneth J Hoffer, Piero Barboni, Domenico Schiano Lomoriello, Pietro Ducoli
PURPOSE: Given that a previous study found that corneal asphericity influences the refractive outcome of intraocular lens (IOL) power calculation by means of thin-lens formulas in eyes with spherical IOLs, the authors aimed to verify whether such influence can also be observed in eyes with aspherical IOLs. METHODS: In this retrospective comparative case series, IOL power was calculated with the Haigis, Hoffer Q, Holladay 1, and SRK/T formulas in two groups of eyes undergoing phacoemulsification and implantation of an aspherical IOL (Acrysof SN60WF; Alcon Laboratories, Inc...
July 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28681906/refractive-changes-induced-by-spherical-aberration-in-laser-correction-procedures-an-adaptive-optics-study
#13
Alfredo Amigó, Paula Martinez-Sorribes, Margarita Recuerda
PURPOSE: To study the effect on vision of induced negative and positive spherical aberration within the range of laser vision correction procedures. METHODS: In 10 eyes (mean age: 35.8 years) under cyclopegic conditions, spherical aberration values from -0.75 to +0.75 µm in 0.25-µm steps were induced by an adaptive optics system. Astigmatism and spherical refraction were corrected, whereas the other natural aberrations remained untouched. Visual acuity, depth of focus defined as the interval of vision for which the target was still perceived acceptable, contrast sensitivity, and change in spherical refraction associated with the variation in pupil diameter from 6 to 2...
July 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28670106/predicting-the-refractive-outcome-and-accuracy-of-iol-power-calculation-after-phacoemulsification-using-the-srk-t-formula-with-ultrasound-biometry-in-medium-axial-lengths
#14
Yunus Karabela, Mustafa Eliacik, Mehmet Selim Kocabora, Sevil Karaman Erdur, Hakan Baybora
PURPOSE: To evaluate the accuracy of the SRK/T formula using ultrasound (US) biometry in predicting a target postoperative refraction of ±1.00D in eyes with medium axial length (AL) that underwent phacoemulsification. METHODS: The present study was a retrospective analysis, which included 538 eyes with an AL from 22.0 to 24.60 mm that underwent phacoemulsification and foldable intraocular lens (IOL) implantation (six different IOLs) in the bag. Preoperative AL was measured by US biometry and IOL power (IOLp) was calculated with the SRK/T formula...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28662862/the-use-of-rigid-gas-permeable-contact-lenses-in-children-with-myopic-amblyopia-a-case-series
#15
Bingjie Wang, Rajeev K Naidu, Xiaomei Qu
PURPOSE: To explore the safety profile and overall visual improvement over the course of RGP contact lens wear on children with unilateral or bilateral amblyopia resulting from myopia. METHODS: This was a retrospective analysis case series study. Clinical records of 15 patients who were fitted with RGP contact lenses at the Shanghai Eye and EENT Hospital of Fudan University between the period of January 2009 to December 2014 were reviewed. The inclusion criteria for review included patients with myopia of -3...
June 26, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28662138/longitudinal-changes-in-macular-retinal-layer-thickness-in-pediatric-populations-myopic-vs-non-myopic-eyes
#16
Scott A Read, David Alonso-Caneiro, Stephen J Vincent
Knowledge of the normal in vivo thickness of the retina, and its individual layers in pediatric populations is important for diagnosing and monitoring retinal disorders, and for understanding the eye's normal development and the impact of eye growth and refractive error such as myopia (short-sightedness) upon retinal morphology. In this prospective, observational longitudinal study, total retinal thickness (and individual retinal layer thickness) and the changes in retinal morphology occurring over an 18-month period were examined in 101 children with a range of refractive errors...
2017: PloS One
https://www.readbyqxmd.com/read/28656670/the-corneal-nerve-density-in-the-sub-basal-plexus-decreases-with-increasing-myopia-a-pilot-study
#17
Wendy W Harrison, Nicole M Putnam, Christine Shukis, Evelyn Nguyen, Kristen Reinard, Elizabeth Hundelt, Galina Vardanyan, Celine Gabai, Vladimir Yevseyenkov
PURPOSE: Myopia can cause many changes in the health of the eye. As it becomes more prevalent worldwide, more patients seek correction in the form of glasses, contact lenses and refractive surgery. In this study we explore the impact that high myopia has on central corneal nerve density by comparing sub basal nerve plexus density measured by confocal microscopy in a variety of refractive errors. METHODS: Seventy healthy adult subjects between the ages of 21-50 years participated in this study...
July 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/28654981/optic-nerve-tilt-crescent-ovality-and-torsion-in-a-multi-ethnic-cohort-of-young-adults-with-and-without-myopia
#18
Wendy L Marsh-Tootle, Elise Harb, Wei Hou, Qinghua Zhang, Heather A Anderson, Katherine Weise, Thomas T Norton, Jane Gwiazda, Leslie Hyman
Purpose: The purpose of this article is to evaluate optic nerve head (ONH) characteristics in an ethnically diverse cohort of young U.S. adults. Methods: In this study, 409 myopes and 206 nonmyopes (median age 22 years) completed measures including biometry and spectral domain optical coherence tomography from enface (ovality and torsion) and cross-sectional (tilt and crescent width) scans. Associated factors were evaluated using multivariable models. Results: In myopic versus nonmyopic right eyes, median tilt (6...
June 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28647783/a-sample-predictive-model-for-intraocular-pressure-following-laser-in-situ-keratomileusis-for-myopia-and-an-intraocular-pressure-constant
#19
Ayse Ebru Bahadir Kilavuzoglu, Tahir Kansu Bozkurt, Cemile Banu Cosar, Asım Bozkurt Sener
PURPOSE: To describe a sample predictive model for intraocular pressure (IOP) following laser in situ keratomileusis (LASIK) for myopia and an IOP constant. METHODS: The records of patients that underwent LASIK for myopia and myopic astigmatism via WaveLight Allegretto Wave Eye-Q 400 Hz excimer laser and Hansatome XP microkeratome were retrospectively reviewed. Patients with no systemic or ocular disease other than myopia or myopic astigmatism were included in the study...
June 24, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28646441/safety-efficacy-and-refractive-outcomes-of-lasik-surgery-in-patients-aged-65-or-older
#20
Paloma López-Montemayor, Jorge E Valdez-García, Denise Loya-García, Julio C Hernandez-Camarena
PURPOSE: Report on the safety, efficiency and refractive outcomes of LASIK surgery in patients aged 65 or older. METHODS: This study includes a case series of patients ≥65 years that underwent corneal refractive surgery during the period June 2010 to June 2015 at Hospital Zambrano Hellion, Monterrey, Mexico. Inclusion criteria were normal topography, central corneal thickness >500 μm, preoperative manifest refraction spherical equivalent (MRSE) up to -8...
June 23, 2017: International Ophthalmology
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