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https://www.readbyqxmd.com/read/28226407/relationship-between-functional-and-structural-retinal-changes-in-myopic-eyes
#1
Zafer Fahiem Ismael, Amany Abd El-Fattah El-Shazly, Yousra Ahmed Farweez, Marwa Mahmoud Mohammed Osman
BACKGROUND: The aim of this study was to investigate the retinal structure in different grades of myopia and correlate it with the functional changes detected with multifocal electroretinogram (mf-ERG) and try to show the most important determining factors. METHODS: The study included 80 participants divided into four groups according to their spherical equivalent refractive error, namely, emmetropia (within ± 0.50 D), mild myopia group (greater than -0.50 to -3...
February 22, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28222711/pseudophakic-ametropia-management-with-toric-implantable-collamer-lens-with-a-central-hole-case-report
#2
Xun Chen, Xiaoying Wang, Xingtao Zhou
BACKGROUND: To report the clinical outcomes of correcting pseudophakic ametropia using toric implantable collamer lens with a 360 um central hole (TICL V4c). CASE PRESENTATION: The right eye of a 22-year-old male patient developed high myopia after unilateral phacoemulsification and intraocular lens (IOL) implantation following traumatic cataract 16 years ago. The manifest refraction was -11.50 DS/-2.50 DC × 175 with an uncorrected distance visual acuity (UDVA) of 20/2000 and a corrected distance visual acuity (CDVA) of 20/20...
February 21, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28220252/long-term-surgical-outcomes-of-the-inverted-internal-limiting-membrane-flap-technique-in-highly-myopic-macular-hole-retinal-detachment
#3
Taiga Kinoshita, Yasutaka Onoda, Takatoshi Maeno
BACKGROUND: Pars plana vitrectomy (PPV) procedures are used for the surgical treatment of macular hole retinal detachment (MHRD) associated with high myopia. Re-detachment of the retina has been reported in MHRD associated with high myopia. Our aim was to evaluate the 1-year outcomes of vitrectomy, performed using an inverted internal limiting membrane (ILM) flap technique with gas tamponade, in five cases of MHRD associated with high myopia. METHODS: We performed a retrospective review of medical records of five consecutive cases of highly myopic MHRD...
February 20, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28218219/reduced-macular-vascular-density-in-myopic-eyes
#4
Hua Fan, Hao-Yu Chen, Hong-Jie Ma, Zheng Chang, Hai-Quan Yin, Danny Siu-Chun Ng, Carol Y Cheung, Shan Hu, Xiang Xiang, Shi-Bo Tang, Shuang-Nong Li
BACKGROUND: Morphological changes of the vasculature system in patients with myopia have been observed by Doppler ultrasound and fundus fluorescein angiography (FFA); however, these studies have limitations. Doppler ultrasound provides low-resolution images which are mainly obtained from visualized large vessels, and FFA is an invasive examination. Optic coherence tomography (OCT) angiography is a noninvasive, high-resolution measurement for vascular density. The purpose of this study was to investigate the change of vascular density in myopic eyes using OCT angiography...
2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28215499/near-binocular-visual-function-in-young-adult-orthokeratology-versus-soft-contact-lens-wearers
#5
Kate Gifford, Paul Gifford, Peter L Hendicott, Katrina L Schmid
PURPOSE: To compare near point binocular vision function of young adult myopes wearing orthokeratology (OK) lenses to matched single vision soft disposable contact lens (SCL) wearers. METHODS: A retrospective clinical record analysis of all OK wearers (18-30 years) presenting over an 18 month period was undertaken. Data was extracted for 17 OK wearers, with 17 SCL wearers matched for age, refractive error and duration of contact lens wear. Binocular vision data included horizontal phoria (phoria), horizontal base-in (BIFR) and base-out fusional reserves (BOFR) and accommodation accuracy (AA)...
February 15, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28212157/current-approaches-to-myopia-control
#6
Seo Wei Leo
PURPOSE OF REVIEW: Myopia is a global problem, being particularly prevalent in the urban areas of east and southeast Asia. In addition to the direct economic and social burdens, associated ocular complications may lead to substantial vision loss. With prevalence of myopia above 80% and high myopia over 20%, it is crucial to control myopia. The aim of this review to is provide an update on the interventions to slow the onset of myopia and retard its progression. RECENT FINDINGS: The epidemic of myopia is characterized by increasingly early onset, combined with high myopia progression rates...
February 15, 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28209502/detailed-phenotyping-and-characterization-of-choroidal-morphological-and-vascular-features-in-young-men-with-high-myopia-using-spectral-domain-optical-coherence-tomography
#7
Preeti Gupta, Sri Gowtham Thakku, Seang-Mei Saw, Mellisa Tan, Edmund Lim, Marcus Tan, Chui Ming Gemmy Cheung, Tien-Yin Wong, Ching-Yu Cheng
PURPOSE: To describe detailed morphological and vascular features of the choroid in eyes with high myopia. DESIGN: Cross-sectional study. METHODS: 515 eyes of young men (mean age 21.59±1.15) years) with high myopia (defined as -6.0 D or worse, mean spherical equivalent -8.66±2.00 D) and 88 controls with emmetropia in both eyes underwent choroidal imaging using spectral domain optical coherence tomography with enhanced depth imaging (EDI-OCT)...
February 13, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28208899/study-of-variation-in-intraocular-pressure-spike-iop-following-nd-yag-laser-capsulotomy
#8
Niharika K Shetty, Sriya Sridhar
INTRODUCTION: Posterior Capsular Opacifications (PCO) is a frequent complication of cataract surgery following posterior chamber intraocular lens implantation. Nd -Yag laser capsulotomy is the treatment of choice for PCO and is known to be associated with complications like Raised Intraocular Pressure (IOP), Intraocular lens pitting, intraocular lens cracks, cystoid macular oedema, retinal detachment, corneal burns. Raised IOP is the most common complication and prescribing anti-glaucoma drugs post capsulotomy is a common practise...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28205338/assessing-oxygen-saturation-in-retinal-vessels-in-high-myopia-patients-pre-and-post-implantable-collamer-lens-implantation-surgery
#9
Pei Chen, Xiaoxiao Cai, Lijun Xu, Jing Zhang, Ying Yang, Qianying Gao, Jian Ge, Keming Yu, Jing Zhuang
PURPOSE: To determine whether posterior chamber phakic implantable collamer lens (ICL) surgery in high myopia patients impedes oxygen saturation of retinal vessels. METHODS: Mean oxygen saturation and diameter in retinal blood vessels were measured before and after ICL implantation surgery to correct high myopia refractive errors (i.e. -6.00 to -20.25 dioptres [D]), using an Oxymap T1 retinal oximeter. RESULTS: In 17 eyes of 17 patients, the Oxymap T1 retinal oximeter detected a small but significant decrease in oxygen saturation of retinal venules, 1-week postoperatively (compared to preoperative measurements)...
February 15, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28192795/wide-field-en-face-swept-source-optical-coherence-tomography-features-of-extrafoveal-retinoschisis-in-highly-myopic-eyes
#10
Wei Xiao, Zhuoting Zhu, Capucine Odouard, Ou Xiao, Xinxing Guo, Mingguang He
Purpose: To evaluate the features of extrafoveal retinoschisis (EFRS) in highly myopic eyes detected by swept-source optical coherence tomography (SS-OCT). Methods: In this retrospective case series, 89 eyes of 65 patients with high myopia and coexisting EFRS were included. The participants underwent a comprehensive ophthalmologic examination, including visual acuity, ocular biometry, refraction, and perimetry. Three-dimensional wide-field scans were obtained with SS-OCT, and en face images were reconstructed with custom software...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28192586/three-year-stability-of-posterior-corneal-elevation-after-small-incision-lenticule-extraction-smile-for-moderate-and-high-myopia
#11
Yu Zhao, Weijun Jian, Yingjun Chen, Michael C Knorz, Xingtao Zhou
PURPOSE: To investigate long-term changes in posterior corneal elevation after small incision lenticule extraction (SMILE). METHODS: Thirty-six eyes of 20 patients (7 male, 13 female) who underwent SMILE were recruited for this prospective consecutive study. The mean preoperative manifest spherical equivalent was -6.24 ± 1.47 diopters (D) (range: -3.88 to -8.75 D). Posterior corneal surfaces were measured by a Scheimpflug camera (Pentacam; Oculus Optikgeräte GmbH, Wetzlar, Germany) preoperatively and at 1 month, 6 months, 12 months, 2 years, and 3 years after surgery...
February 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28188942/photorefractive-keratectomy-with-mitomycin-c-for-high-myopia-three-year-follow-up-results
#12
Hassan Hashemi, Yahya Salimi, Poopak Pir, Soheila Asgari
Photorefractive keratectomy (PRK) is a safe and effective surgical keratorefractive technique which is done with the application of mitomycin-C (MMC) in cases of high myopia to prevent the formation of corneal haze This study was conducted to evaluate 3-year visual acuity and quality outcomes of PRK-MMC in high myopia. This before-after study was conducted on 20 individuals (40 eyes) with myopia more than 6.0 diopter (D). Visual acuity and quality indices were evaluated before and three years after the procedure and their stability was examined between the 1st and 3rd years...
January 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28188379/a-novel-mutation-of-laminin-%C3%AE-2-lamb2-in-two-siblings-with-renal-failure
#13
Farah A Falix, Carlien A M Bennebroek, Bert van der Zwaag, Ruth Lapid-Gortzak, Sandrine Florquin, Michiel J S Oosterveld
: This report describes a novel mutation of LAMB2, the gene associated with Pierson syndrome (microcoria-congenital nephrosis syndrome), in two female siblings. The c.970T>C p.(Cys324Arg) mutation in the LAMB2 gene affects one of the eight highly conserved cysteine residues within the first EGF-like module of the laminin β2 protein. These residues form disulfide bonds in order to achieve a correct 3D structure of the protein. The reported phenotype is considered a relatively mild variant of Pierson syndrome and is associated with later-onset (18 months) therapy-resistant nephrotic syndrome leading to renal failure, and ocular abnormalities consisting of high myopia, microcoria, diverse retinal abnormalities, hence a low level of visual acuity...
February 10, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28168049/photorefractive-keratectomy-for-residual-myopia-after-myopic-laser-in-situ-keratomileusis
#14
Kamal A M Solaiman, Sameh M Fouda, Ashraf Bor'i, Haitham Y Al-Nashar
Purpose. To evaluate the safety, efficacy, and predictability of photorefractive keratectomy (PRK) on the corneal flap for correction of residual myopia following myopic laser in situ keratomileusis (LASIK). Patients and Methods. A retrospective study on eyes retreated by PRK on the corneal flap for residual myopia after LASIK. All eyes had no enough stroma after LASIK sufficient for LASIK enhancement. Data included spherical equivalent (SE), uncorrected and best corrected visual acuity (UCVA and BCVA), central pachymetry, corneal higher order aberrations (HOAs), corneal hysteresis (CH), corneal resistance factor (CRF), and corneal haze...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28166316/is-choroidal-or-scleral-thickness-related-to-myopic-macular-degeneration
#15
Chee Wai Wong, Val Phua, Shu Yen Lee, Tien Yin Wong, Chui Ming Gemmy Cheung
Purpose: The relative contribution of mechanical and vascular factors to the pathogenesis of myopic macular degeneration (MMD) is unclear. To address this gap, we examined the association of choroidal thickness (CT) and scleral thickness (ST) with MMD. Methods: Prospective, clinic-based case series of 62 eyes of 41 patients with high myopia (≤-6 diopters or axial length ≥26.5 mm). Swept-source optical coherence tomography (SSOCT) was performed to measure subfoveal CT and ST...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28163860/refinement-of-intraocular-pressure-measurements-made-by-ocular-response-analyzer-following-laser-in-situ-keratomileusis-using-m2-90-moria-microkeratome-for-egyptian-myopic-and-astigmatic-patients
#16
Tamer Adel Refai, Olfat A Hassanin
INTRODUCTION: The Goldmann applanation tonometer readings were noted to be markedly reduced after Lasik surgery using a thin flap technique which is widely used nowadays, to correct a wide range of myopia and astigmatism. The Ocular Response Analyzer (ORA) is considered one of the important tools for refinement of Intraocular Pressure (IOP) measurements. The aim of this study is to evaluate and refine ORA measurements for IOP changes post- M2 90 Moria microkeratome Lasik procedure for Egyptian myopic and astigmatic patients trying to aid in glaucoma diagnosis and management...
December 2016: Electronic Physician
https://www.readbyqxmd.com/read/28162198/-a-preliminary-study-on-macular-retinal-and-choroidal-thickness-and-blood-flow-change-after-posterior-scleral-reinforcement-by-optical-coherence-tomography-angiography
#17
X F Zhang, L Y Qiao, X X Li, N Ma, M Li, Z Guan, H Z Wang, N L Wang
Objective: To investigate macular retinal and choroidal thickness and blood flow change using optical coherence tomography angiography after posterior scleral reinforcement (PSR) surgery. Methods: Prospective study. Twenty eyes of 10 patients with high myopia were enrolled in this open-label, single-treatment group and prospective study. Radial lines and Angio retina (3 mm×3 mm) module were performed for 20 eyes using Angio-vue optical coherence tomography (Avanti, Optovue) without pupil dilation, and best corrected visual acuity, spherical equivalent and axial length were compared before and 60 days after surgery...
January 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28162195/-comparison-of-the-effects-of-0-1-bromfenac-sodium-eye-drops-and-corticosteroids-after-small-incision-lenticule-extraction
#18
Y Jiang, Y Li, Y M Jin, J Y Zhang
Objective: To study the safety, efficacy and tolerability of the usage of 0.1% bromfenac sodium eye drops in small incision lenticule extraction (SMILE). Methods: Prospective case control study. Three groups were observed, including 60 patients (60 eyes) undergoing SMILE for myopia. After surgery, 20 patients (20 eyes) were treated with 0.1% bromfenac sodium eye drops twice daily for 10 days, 20 patients (20 eyes) were treated with topical compound tobramycin eye drops 4 times daily for 10 days, and 20 patients (20 eyes) were treated with topical compound tobramycin eye drops 4 times daily for 3 days and 0...
January 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28159977/parapapillary-diffuse-choroidal-atrophy-in-children-is-associated-with-extreme-thinning-of-parapapillary-choroid
#19
Tae Yokoi, Dan Zhu, Hong Sheng Bi, Jost B Jonas, Rahul A Jonas, Natsuko Nagaoka, Muka Moriyama, Takeshi Yoshida, Kyoko Ohno-Matsui
Purpose: To analyze morphologic features of segmental parapapillary diffuse choroidal atrophy (PDCA) in children. Methods: The study group included children (age ≤15 years) with high myopia who attended the Tokyo High Myopia Clinic. Control groups comprised participants of the population-based Gobi Desert Children Eye Study (GobiDCES). Fundus photographs were examined for presence of PDCA and choroidal thickness (CT) was measured by optical coherence tomography...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28159853/vascular-flow-density-in-pathological-myopia-an-optical-coherence-tomography-angiography-study
#20
Jing Mo, Anli Duan, Szyyann Chan, Xuefei Wang, Wenbin Wei
OBJECTIVES: To investigate vascular flow density in pathological myopia with optical coherence tomography (OCT) angiography. DESIGN: A prospective comparative study was conducted from December 2015 to March 2016. SETTING: Participants were recruited in Beijing Tongren Hospital. PARTICIPANTS: A total of 131 eyes were enrolled, which were divided into three groups: 45 eyes with emmetropia (EM; mean spherical equivalent (MSE) 0...
February 3, 2017: BMJ Open
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