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Myopic and eye study

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https://www.readbyqxmd.com/read/28445315/the-effect-of-timolol-0-5-on-the-correction-of-myopic-regression-after-lasik
#1
Hong Qi, Caifeng Gao, Yaxin Li, Xue Feng, Miao Wang, Yu Zhang, Yueguo Chen
BACKGROUD: Postlaser in situ keratomileusis (post-LASIK) refractive regression is defined as the gradual, partial, or total loss of initial correction that limits the predictability, efficiency, and long-term stability of LASIK. Our study assesses the effect of Timolol 0.5% on the correction of myopic regression after LASIK. METHODS: This prospective, randomized, controlled study included 62 eyes of 62 patients with myopic regression of -1.18 ± 0.86 diopters (D) after myopic LASIK...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28438126/prevalence-of-and-factors-associated-with-myopia-in-inner-mongolia-medical-students-in-china-a-cross-sectional-study
#2
Lan Wang, Maolin Du, He Yi, Shengyun Duan, Wenfang Guo, Peng Qin, Zhihui Hao, Juan Sun
BACKGROUND: To further explore characteristics of myopia and changes in factors associated with myopia among students at Inner Mongolia Medical University. METHODS: Two cross-sectional censuses were conducted in 2011 and 2013. Participants were medical students residing on campus in 2011 and 2013. Logistic regression analysis was performed to ascertain associations with basic information, genetic factors, environmental factors. The χ(2) test was used to test for differences in prevalence between 2011 and 2013...
April 24, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28435210/incidence-of-interface-fluid-syndrome-after-laser-in-situ-keratomileusis-in-egyptian-patients
#3
Amr A Gab-Alla
PURPOSE: To determine the incidence of interface fluid syndrome (IFS) secondary to steroid-induced elevation of intraocular pressure (IOP) following laser in situ keratomileusis (LASIK) in myopic Egyptian patients. METHODS: This retrospective case series study was conducted at El-Gowhara Private Eye Center. The medical records of 1,807 patients (3,489 eyes), who underwent LASIK to correct myopia from April 2012 to December 2015 were included. The patients were operated on and reviewed by one surgeon (AAG) for IFS after LASIK associated with elevation of IOP (as compared to preoperative values)...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28430330/long-term-visual-outcomes-in-children-with-primary-congenital-glaucoma
#4
Sanaa A Yassin
PURPOSE: To determine the long-term visual outcomes and risk factors for visual loss in children with primary congenital glaucoma (PCG) who underwent angle surgery over a 21-year period. METHODS: This was a retrospective study of patients who underwent trabeculotomy, trabeculectomy, or combined trabeculotomy-trabeculectomy for PCG. Visual acuity (VA), surgeries, and underlying cause of visual impairment were recorded and compared. Main outcome measures were final best-corrected good VA (20/20 to 20/50), moderate VA (<20/50 to 20/200), or poor VA (<20/200); age at surgery, sex, laterality, type of initial glaucoma surgery, and number of surgeries were recorded...
April 20, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28426626/parapapillary-gamma-and-delta-zones-in-high-myopia
#5
Jost B Jonas, Yuxin Fang, Pascal Weber, Kyoko Ohno-Matsui
PURPOSE: To examine parapapillary zones gamma and delta in highly myopic eyes. METHODS: The retrospective observational study included patients attending the Tokyo high myopia clinics. Fundus photographs were morphometrically examined. RESULTS: The study population included 600 eyes (304 individuals) with a mean age of 62.7 ± 14.3 years (range: 13-90 years) and mean axial length of 29.6 ± 2.2 mm (range: 23.2-35.4 mm). In multivariate analysis (regression coefficient r:0...
April 19, 2017: Retina
https://www.readbyqxmd.com/read/28424534/corneal-flap-thickness-with-the-moria-m2-single-use-head-90-microkeratome-in-72-consecutive-lasik-procedures
#6
Yunus Karabela, Orkun Muftuoglu, Faruk Kaya
PURPOSE: This study aimed to evaluate the accuracy and consistency of corneal flap thickness in laser-assisted in situ keratomileusis (LASIK) with the Moria M2 single-use head 90 microkeratome. METHODS: The central corneal thickness of 72 (37 right, 35 left) eyes of 37 patients was measured by ultrasonic pachymetry preoperatively and intraoperatively after flap cut. The Moria M2 single-use head 90 microkeratome was used to create a superior hinged flap in all eyes...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28419129/factors-related-to-axial-length-elongation-and-myopia-progression-in-orthokeratology-practice
#7
Bingjie Wang, Rajeev K Naidu, Xiaomei Qu
PURPOSE: To investigate which baseline factors are predictive for axial length growth over an average period of 2.5 years in a group of children wearing orthokeratology (OK) contact lenses. METHODS: In this retrospective study, the clinical records of 249 new OK wearers between January 2012 and December 2013 from the contact lens clinic at the Eye and ENT Hospital of Fudan University were reviewed. The primary outcome measure was axial length change from baseline to the time of review (July-August 2015)...
2017: PloS One
https://www.readbyqxmd.com/read/28418222/modified-loop-myopexy-technique-for-severe-high-myopic-strabismus-fixus
#8
Leilei Zou, Shuai Liu, Rui Liu, Yao Jing, Yan Liu, Jing Lin, Hong Liu
IMPORTANCE: This study introduces a modified loop myopexy technique for severe high myopic strabismus fixus (MSF). BACKGROUND: To evaluate the surgical results of loop myopexy with or without medial rectus (MR) recession for the treatment of patients with MSF. DESIGN: A retrospective study in a Chinese teaching hospital. PARTICIPANTS: Data was collected from 25 MSF patients (33 eyes) with restriction in both abduction and sursumduction...
April 18, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28414805/measurements-of-the-parapapillary-atrophy-zones-in-en-face-optical-coherence-tomography-images
#9
Atsuya Miki, Yasushi Ikuno, Robert N Weinreb, Junko Yokoyama, Tomoko Asai, Shinichi Usui, Kohji Nishida
OBJECTIVE: To measure the parapapillary atrophy (PPA) area in en face images obtained with swept-source optical coherence tomography (SS-OCT), and to evaluate its relationship to glaucoma, myopia, and age in non-highly myopic subjects. DESIGN: Retrospective, cross-sectional study. PARTICIPANTS: Fifty eyes of 30 subjects with open-angle glaucoma (G group) and forty-three eyes of 26 healthy control subjects (C group). Eyes with high myopia (spherical equivalent refractive error ≤ -8 diopters or axial length ≥ 26...
2017: PloS One
https://www.readbyqxmd.com/read/28412798/-intraocular-lens-power-calculation-for-high-myopic-eyes-with-cataract-comparison-of-three-formulas
#10
X J Zhu, W W He, Y Du, D J Qian, J H Dai, Y Lu
Objective: To compare the accuracy of three different formulas for intraocular lens power calculation in high myopic eyes with cataract and analyze their influencial factors. Methods: One hundred and three high myopic patients of cataract (103 eyes), with average age of 60.2±8.8 years old (39.0-77.0), including 45 male and 54 female and with axial length ≥ 26 mm were enrolled in this retrospective case-series study. All of them underwent routine ocular examination and IOLMastermeasurement preoperatively and then underwent phacoemulsification through temporal clear-corneal incision with implantation of HumanOptic posterior chamber Intraocular lens (IOL)...
April 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28410713/axial-length-measurements-comparison-of-a-new-swept-source-optical-coherence-tomography-based-biometer-and-partial-coherence-interferometry-in-myopia
#11
Jong Yun Yang, Hong Kyu Kim, Sung Soo Kim
PURPOSE: To compare axial length (AL) measurements between a swept-source optical coherence tomography (SS-OCT) biometer (IOLMaster 700) and a partial coherence interferometry (PCI) biometer (IOLMaster, version 5.4) in myopic eyes. SETTING: Severance Hospital, Yonsei University, Seoul, South Korea. DESIGN: Prospective evaluation of a diagnostic test. METHODS: This study enrolled patients with a diagnosis of myopia in their medical records...
March 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28407165/comparison-of-corneal-epithelial-remodeling-after-femtosecond-laser-assisted-lasik-and-small-incision-lenticule-extraction-smile
#12
Ik-Hee Ryu, Bong Jun Kim, Jong-Hyuck Lee, Sun Woong Kim
PURPOSE: To comparatively investigate changes in epithelial thickness between myopic femtosecond laser-assisted LASIK (FS-LASIK) and small incision lenticule extraction (SMILE). METHODS: This study compared the topographic epithelial thickness changes in 175 myopic eyes undergoing FS-LASIK (62 eyes) or SMILE (113 eyes). Epithelial thickness was obtained using spectral-domain optical coherence tomography before surgery and 1 and 3 months after surgery. Topographic epithelial thickness obtained by automatic algorithm and thickness variability (standard deviation over 17 imaged areas) was compared between two groups...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28407164/intraocular-pressure-after-implantation-of-a-phakic-collamer-intraocular-lens-with-a-central-hole
#13
Ignacio Rodríguez-Una, Pedro Pablo Rodríguez-Calvo, Luis Fernández-Vega Cueto, Carlos Lisa, Andrés Fernández-Vega Cueto, José F Alfonso
PURPOSE: To investigate the middle-term intraocular pressure (IOP) results after implantation of a posterior chamber collagen copolymer phakic intraocular lens (IOL) (V4c Visian; STAAR Surgical Co., Nidau, Switzerland) with a central hole in patients with myopia. METHODS: This retrospective study enrolled patients who had implantation of a phakic IOL with a central hole. IOP, central vault, and adverse events were evaluated 1, 3, 6, 12, and 24 months postoperatively...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28396340/myopic-glaucomatous-eyes-with-or-without-optic-disc-shape-alteration-a-longitudinal-study
#14
Junki Kwon, Kyung Rim Sung, Ji Min Park
AIMS: To compare the clinical courses of patients with myopic primary open angle glaucoma (POAG) with and without optic disc shape alterations. METHODS: In this longitudinal retrospective study, 146 eyes from 146 patients with myopic (axial length(AXL),>24 mm) POAG were classified according to optic disc shape alterations defined by optic disc tilt and/or rotation. Glaucomatous progression was determined by either serial optic disc/retinal nerve fibre layer photographs or visual field (VF) exams...
April 10, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28392938/effect-of-mitomycin-c-on-myopic-versus-astigmatic-photorefractive-keratectomy
#15
Ashwag A Almosa, Samah M Fawzy
Purpose. Long-term mitomycin C (MMC) effects on photorefractive keratectomy (PRK) were compared in simple myopic and astigmatic patients. Methods. In this observational cohort study, subjects were selected based on preoperative and postoperative data collected from medical records; they were divided into simple myopia with/without MMC and myopic astigmatism with/without MMC groups. Haze, uncorrected visual acuity (UCVA), best-corrected visual acuity (BCVA), subjective refraction, and K-reading were evaluated at 1-, 3-, 6-, and 12-month follow-ups...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28390411/prediction-accuracy-of-intraocular-lens-power-calculation-methods-after-laser-refractive-surgery
#16
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
#17
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/28388703/quantitative-oct-angiography-of-the-retinal-microvasculature-and-the-choriocapillaris-in-myopic-eyes
#18
Mayss Al-Sheikh, Nopasak Phasukkijwatana, Rosa Dolz-Marco, Mansour Rahimi, Nicholas A Iafe, K Bailey Freund, SriniVas R Sadda, David Sarraf
Purpose: To study the retinal capillary microvasculature and the choriocapillaris (CC) in myopic eyes using quantitative optical coherence tomography angiography (OCTA) analysis. Methods: Macular OCTA images of 3 × 3 mm were obtained using the RTVue-XR Avanti with AngioVue. Quantitative measurements of the retinal capillary microvascular layers and the CC were analyzed using en face projection images. Vessel density and fractal dimension of the superficial and deep retinal capillary plexus, and area and density of flow reduction in the CC were analyzed, quantified, and compared with an age-matched control group...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28380081/glaucoma-in-high-myopia-and-parapapillary-delta-zone
#19
Jost B Jonas, Pascal Weber, Natsuko Nagaoka, Kyoko Ohno-Matsui
PURPOSE: To examine the prevalence of glaucomatous optic neuropathy (GON) in a medium myopic to highly myopic group of patients and its association with parapapillary gamma zone and parapapillary delta zone. METHODS: The retrospective observational hospital-based study included patients who had attended the Tokyo High Myopia Clinics within January 2012 and December 2012 and for whom fundus photographs were available. GON was defined based on the appearance of the optic nerve head on the fundus photographs...
2017: PloS One
https://www.readbyqxmd.com/read/28372860/treatment-patterns-for-myopic-choroidal-neovascularization-in-the-united-states-analysis-of-the-iris-registry
#20
Jeffrey Willis, Lawrence Morse, Susan Vitale, David W Parke, William L Rich, Flora Lum, Ronald A Cantrell
PURPOSE: To characterize treatment patterns and outcomes in eyes with treatment-naïve myopic choroidal neovascularization (mCNV) in the United States. DESIGN: Retrospective cohort study. PARTICIPANTS: Individuals aged 18 years and older seen in clinics participating in the American Academy of Ophthalmology's IRIS (Intelligent Research in Sight) Registry. METHODS: We analyzed data from the IRIS Registry, from January 1, 2012 to December 31, 2014, to identify cases of treatment-naïve mCNV, which was defined as the presence of myopic refractive error worse than -6...
March 31, 2017: Ophthalmology
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