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Myopic and eye study

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https://www.readbyqxmd.com/read/29340891/mitomycin-c-0-02-and-0-002-efficacy-in-preventing-haze-after-photorefractive-keratectomy
#1
L M Coelho, R O Sieiro
PURPOSE: To compare MMC 0.002% efficacy in preventing haze after PRK in relation to MMC 0.02%. PATIENTS AND METHODS: We conducted a prospective study with patients with myopia or myopic astigmatism undergoing PRK in the same conditions. After PRK, MMC was applied for 30 s in a concentration of 0.02% on the right eye (group 1) and 0.002% on the left eye (group 2). Age, gender, spherical equivalent and haze intensity (1, 3, 6 and 12 months postoperatively) were assessed...
January 16, 2018: International Ophthalmology
https://www.readbyqxmd.com/read/29338123/choroidal-thickness-and-myopia-in-relation-to-physical-activity-the-champs-eye-study
#2
Kristian Lundberg, Anders Højslet Vestergaard, Nina Jacobsen, Anne Suhr Thykjaer, Rasmus Søgaard Hansen, Ernst Goldschmidt, Tunde Peto, Ulrich Halekoh, Niels Wedderkopp, Jakob Grauslund
PURPOSE: To describe the relationship between choroidal thickness (CT) and myopia in relation to physical activity (PA) in a population-based child cohort. METHODS: In a prospective study of 307 children from the CHAMPS Study Denmark, we used objective data from GT3X accelerometer worn at four periods between 2009 and 2015 to determine the amount and intensity of PA. Intensity was estimated as counts/minutes, and cut-off points were defined at four intensity levels...
January 16, 2018: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29335399/prevalence-and-causes-of-visual-impairment-in-adults-in-binhu-district-wuxi-china
#3
Xing Chen, Danying Zhou, Jian Shen, Yanbing Wu, Qingzhu Sun, Jianming Dong, Jianchun Yu
BACKGROUND Previously reported data has guided the treatment and prevention of blindness. This study aimed to evaluate the current prevalence and causes of visual impairment among adults who were 50 years old and older in the Binhu District of Wuxi City, China. MATERIAL AND METHODS A randomized sample of stratified clusters was used to analyze individuals from 30 basic sampling units in Wuxi Binhu District. Visual impairment was defined according to World Health Organization (WHO) standards. RESULTS A total of 6725 people who were at least 50 years old participated in this study...
January 16, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29335095/vector-analysis-of-astigmatic-changes-and-optical-quality-outcomes-after-wavefront-guided-laser-in%C3%A2-situ-keratomileusis-using-a-high-resolution-aberrometer
#4
Juan A Durán, Elisa Gutiérrez, Rebeca Atienza, David P Piñero
PURPOSE: To assess the ocular optical quality results as well as the astigmatic changes after wavefront-guided laser in situ keratomileusis (LASIK) in eyes with myopic astigmatism. SETTING: Instituto Clínico-Quirúrgico Oftalmológico, Bilbao, Vizcaya, Spain. DESIGN: Prospective case series. METHODS: Thirty-three eyes having wavefront-guided LASIK with the Star S4IR excimer laser combined with the iDesign system were enrolled in the study...
December 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29329901/effects-of-orthokeratology-on-axial-length-growth-in-myopic-anisometropes
#5
Zhi Chen, Jiaqi Zhou, Xiaomei Qu, Xingtao Zhou, Feng Xue
PURPOSE: To investigate the effect of orthokeratology (ortho-k) lens wear on axial length (AL) growth in juvenile myopic anisometropes. METHODS: This retrospective study consisted of two parts. In Part One, 25 anisometropic participants (mean age, 11.2 ± 1.9 years; 11 females and 14 males) were fitted with ortho-k lenses in the more myopic eye only, and the rate of AL growth was compared between the ortho-k lens wearing eye and the untreated contralateral eye over an average period of 23...
January 10, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29290187/peripapillary-retinal-nerve-fiber-layer-rnfl-thickness-measurements-by-topcon-sd-oct-in-myopic-patients
#6
Nadia Akhtar, Ayisha Kausar, Farooq Afzal, Syed Khalid Ali, Nida Hamid
OBJECTIVE: To evaluate the effect of low-to-moderate myopia on peripapillary retinal nerve fiber layer (RNFL) thickness measured by Topcon SD optical coherence tomography (OCT). STUDY DESIGN: Cross-sectional study. PLACE AND DURATION OF STUDY: Ophthalmology Department, Shifa Foundation Falahee Clinic, over a period of one year starting from June 2015. METHODOLOGY: A total of 43 eyes of 43 patients, having mild to moderate myopic refractive error, were enrolled in the study...
January 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29288031/prevalence-and-characteristics-of-myopic-degeneration-in-an-adult-chinese-american-population-the-chinese-american-eye-study
#7
Farzana Choudhury, Stacy M Meuer, Ronald Klein, Dandan Wang, Mina Torres, Xuejuan Jiang, Roberta McKean-Cowdin, Rohit Varma
PURPOSE: To characterize and provide population-based prevalence estimates of myopic degeneration (MD) among Chinese Americans, the fastest growing minority population in the United States in the last decade. DESIGN: Population-based, cross-sectional study. METHODS: 1523 Chinese American adults with myopia, aged 50 years and older, residing in the City of Monterey Park, California, underwent an interview and comprehensive eye exam, including subjective and objective refraction, and stereoscopic fundus photography...
December 26, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29285706/comparison-of-anterior-segment-parameters-and-axial-lengths-of-myopic-emmetropic-and-hyperopic-children
#8
Mehmethan Dogan, Ufuk Elgin, Emine Sen, Kemal Tekin, Pelin Yilmazbas
PURPOSE: To compare the anterior segment parameters of myopic, hyperopic, and emmetropic children by using optical biometry. METHODS: This prospective cross-sectional study included 150 eyes of 150 children between 6 and 16 years old. The eyes were divided into three groups according to their spherical equivalent (SE) refractive error values as myopic [between - 1.0 and - 6.0 diopter (D)], emmetropic (between + 0.50 and - 0.50 D), and hyperopic (between + 1...
December 29, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/29283117/refractive-lenticule-extraction-small-incision-lenticule-extraction-a-new-refractive-surgery-paradigm
#9
REVIEW
Sri Ganesh, Sheetal Brar, Raghavender Reddy Arra
Small incision lenticule extraction (SMILE), a variant of refractive lenticule extraction technology is becoming increasingly popular, as a flapless and minimally invasive form of laser vision correction (LVC) for the treatment of myopia and myopic astigmatism. This review aims at summarizing the principles, surgical technique, and clinical outcomes in terms of visual and refractive results, safety, efficacy, postoperative dry eye, aberrations, and biomechanics of SMILE and its comparison with other conventional techniques of LVC, such as laser in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK)...
January 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29279023/knobby-eye-syndrome
#10
Joseph L Demer
INTRODUCTION: A spherical globe is traditionally assumed, but this study employed magnetic resonance imaging (MRI) to demonstrate frequent occurrence of non-spherical staphylomata in strabismic patients. METHODS: High-resolution, surface coil MRI was obtained in multiple image planes in 21 highly myopic subjects (36 eyes) and compared with 17 normal controls (33 eyes). Images were analyzed for axial length, aspect ratio of eye shape, and deflection of muscle paths...
December 26, 2017: Strabismus
https://www.readbyqxmd.com/read/29246204/the-application-of-wide-field-laser-ophthalmoscopy-in-fundus-examination-before-myopic-refractive-surgery
#11
Lin Liu, Fang Wang, Ding Xu, Chunlei Xie, Jun Zou
BACKGROUND: To evaluate wide-field laser ophthalmoscopy (Optomap 200Tx) for screening retinal lesions before myopic refractive surgery. METHODS: Seventy-eight eyes of 78 consecutive refractive surgery candidates were included in this study. All subjects underwent Optomap 200Tx, mydriatic slit-lamp lens examination and the Goldmann three-mirror contact lens examination, which was considered as the reference method for determining retinal lesions. RESULTS: Forty of 78 eyes had retinal lesions (51...
December 15, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29242900/evaluation-of-retinal-nerve-fiber-layer-thinning-in-myopic-glaucoma-impact-of-optic-disc-morphology
#12
Kyeong Ik Na, Won June Lee, Young Kook Kim, Ki Ho Park, Jin Wook Jeoung
Purpose: The purpose of this study was to investigate the role of optic disc torsion on the rate of progressive retinal nerve fiber layer (RNFL) thinning in patients with myopic open-angle glaucoma. Methods: We included 102 patients with myopic open-angle glaucoma accompanied by glaucomatous damage confined to a single hemiretina who were followed up over a 5-year period. We divided the subjects into three groups according to the presence or absence of optic disc torsion and the correspondence between the direction of optic disc torsion and the location of glaucomatous damage: torsion with reverse correspondence group (eyes showing inferior optic disc torsion with glaucomatous damage in the superior quadrant or eyes showing superior torsion with damage in the inferior quadrant), no torsion group, and torsion with correspondence group (eyes showing inferior optic disc torsion with glaucomatous damage in the inferior quadrant or eyes showing superior torsion with damage in the superior quadrant)...
December 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29236204/the-burden-of-pure-anisometropic-amblyopia-a-cross-sectional-study-on-2800-iranians
#13
Siamak Akbarzadeh, Reihaneh Vahabi, Nooshin Bazzazi, Ghodratollah Roshanaei, Samira Heydarian, Daniel F Fouladi
PURPOSE: To assess the proportion of pure anisometropic amblyopia in a sample Iranian (white) population. METHODS: A total of 2800 consecutive individuals who presented at a referral eye clinic for any reason were examined for the presence of pure anisometropic amblyopia. Anisometropia was reported when a spherical equivalent refraction difference of at least 1.0 D with or without a cylinder refraction difference of at least 1.0 D was present between the two eyes...
December 13, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/29235544/relationship-of-corneal-hysteresis-and-optic-nerve-parameters-in-healthy-myopic-subjects
#14
Kunliang Qiu, Xuehui Lu, Riping Zhang, Geng Wang, Mingzhi Zhang
The association between corneal biomechanical properties and glaucoma is an area of much interest. We determined the relationship between corneal hysteresis (CH) and optic nerve parameters in healthy myopic subjects in the current study. CH was measured with Reichert Ocular Response Analyzer in 108 eyes from 108 healthy myopic subjects. All subjects received retinal nerve fiber layer and optic disc imaging Cirrus HD-OCT, GDx ECC, and Heidelberg Retina Tomograph II. None of the tested optic nerve parameters showed statistical significance with CH by using correlation analysis...
December 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29232338/internal-limiting-membrane-peeling-versus-inverted-flap-technique-for-treatment-of-full-thickness-macular-holes-a-comparative-study-in-a-large-series-of-patients
#15
Stanislao Rizzo, Ruggero Tartaro, Francesco Barca, Tomaso Caporossi, Daniela Bacherini, Fabrizio Giansanti
BACKGROUND: The inverted flap (IF) technique has recently been introduced in macular hole (MH) surgery. The IF technique has shown an increase of the success rate in the case of large MHs and in MHs associated with high myopia. This study reports the anatomical and functional results in a large series of patients affected by MH treated using pars plana vitrectomy and gas tamponade combined with internal limiting membrane (ILM) peeling or IF. METHODS: This is a retrospective, consecutive, nonrandomized comparative study of patients affected by idiopathic or myopic MH treated using small-gauge pars plana vitrectomy (25- or 23-gauge) between January 2011 and May 2016...
December 8, 2017: Retina
https://www.readbyqxmd.com/read/29232337/retinal-telangiectasia-in-patients-with-pathologic-myopia-a-case-series
#16
Boya Lei, Ruiping Gu, Chen Jiang, Gezhi Xu
PURPOSE: To describe the characteristics of retinal telangiectasia in eyes with pathologic myopia. METHODS: The study included 10 patients (18 eyes) who were diagnosed with pathologic myopia combined with retinal telangiectasia. The patients visited our retinal clinic every 3 months. Nine eyes underwent vitrectomy for vision-threatening complications after diagnosis. All eyes underwent comprehensive ophthalmologic examinations including multimodal retinal imaging at presentation and at each follow-up...
December 8, 2017: Retina
https://www.readbyqxmd.com/read/29227511/predictive-formula-for-refraction-of-autologous-lenticule-implantation-for-hyperopia-correction
#17
Meng Li, Meiyan Li, Ling Sun, Katherine Ni, Xingtao Zhou
PURPOSE: To create a formula to predict refractive correction of autologous lenticule implantation for correction of hyperopia (with myopia in one eye and hyperopia in the contralateral eye). METHODS: In this prospective study, 10 consecutive patients (20 eyes) who had myopia in one eye and hyperopia in the contralateral eye were included. The preoperative spherical equivalent was -3.31 ± 1.73 diopters (D) for the myopic eyes and +4.46 ± 1.97 D for the hyperopic eyes...
December 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29221708/daily-versus-monthly-disposable-contact-lens-which-is-better-for-ocular-surface-physiology-and-comfort
#18
Kishor Sapkota, Sandra Franco, Madalena Lira
PURPOSE: To investigate the effect of soft contact lenses (SCL) wearing modality and lens materials on the changes in conjunctival bulbar and limbal redness and conjunctival and corneal staining after two months of SCL wear. Comfort level was also analyzed. METHODS: In this longitudinal clinical trial, forty-seven neophyte myopic subjects were fitted with a monthly disposable lens (lotrafilcon-B or comfilcon-A or balafilcon-A) in one eye and a daily disposable lens (nelfilcon-A or stenofilcon-A or nesofilcon-A) in the other eye, randomly selected...
December 5, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29216865/effect-of-orthokeratology-on-myopia-progression-twelve-year-results-of-a-retrospective-cohort-study
#19
Yueh-Chang Lee, Jen-Hung Wang, Cheng-Jen Chiu
BACKGROUND: Several studies reported the efficacy of orthokeratology for myopia control. Somehow, there is limited publication with follow-up longer than 3 years. This study aims to research whether overnight orthokeratology influences the progression rate of the manifest refractive error of myopic children in a longer follow-up period (up to 12 years). And if changes in progression rate are found, to investigate the relationship between refractive changes and different baseline factors, including refraction error, wearing age and lens replacement frequency...
December 8, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29208347/usefulness-of-bandage-contact-lenses-in-the-immediate-postoperative-period-after-uneventful-myopic-lasik
#20
Mar Seguí-Crespo, Javier Parra Picó, Pedro Ruíz Fortes, Alberto Artola Reig, Francisco J Blanes-Mompó, Rafael J Pérez-Cambrodí
PURPOSE: To determine the usefulness of a silicone-hydrogel bandage contact lens (BCL) in the immediate postoperative period after uneventful myopic laser in-situ keratomileusis (LASIK). METHODS: The study design was randomized but not masked and data collection was prospective. This study comprised 51 consecutive myopic eyes intervened by means of the LASIK technique to compensate their refractive error. Patients were randomly assigned to two different groups. The experimental group included 24 eyes of 12 patients that were fitted with a BCL immediately after the flap replacement...
December 2, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
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