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https://www.readbyqxmd.com/read/28752898/contact-lenses-to-slow-progression-of-myopia
#1
REVIEW
Padmaja Sankaridurg
The prevalence of myopia has been steadily rising, with 28 per cent of the global population said to be affected in 2010 and to rise to affect nearly 50 per cent by 2050. Increasing levels of myopia increase the risk of vision impairment and in particular, high myopia is associated with the risk of serious and permanent visual disability due to associated sight-threatening complications. To stem the burden associated with higher levels of myopia, there are efforts to slow the progression of myopia, and several optical and pharmaceutical strategies have been found useful in slowing myopia to varying degrees...
July 28, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28751151/development-of-refractive-errors-what-can-we-learn-from-inherited-retinal-dystrophies
#2
Michelle Hendriks, Virginie J M Verhoeven, Gabriëlle H S Buitendijk, Jan Roelof Polling, Magda A Meester-Smoor, Albert Hofman, Maarten Kamermans, L Ingeborgh van den Born, Caroline C W Klaver
PURPOSE: It is unknown which retinal cells are involved in the retina-to-sclera signaling cascade causing myopia. As inherited retinal dystrophies (IRD) are characterized by dysfunction of a single retinal cell type and have a high risk of refractive errors, a study investigating the affected cell type, causal gene and refractive error in IRDs may provide insight herein. DESIGN: Case-control study. METHODS: Study population: 302 patients with IRD from two ophthalmogenetic centers in the Netherlands...
July 24, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28746982/myopia-progression-control-lens-reverses-induced-myopia-in-chicks
#3
Elizabeth L Irving, Cristina Yakobchuk-Stanger
PURPOSE: To determine whether lens induced myopia in chicks can be reversed or reduced by wearing myopia progression control lenses of the same nominal (central) power but different peripheral designs. METHODS: Newly hatched chicks wore -10D Conventional lenses unilaterally for 7 days. The myopic chicks were then randomly divided into three groups: one fitted with Type 1 myopia progression control lenses, the second with Type 2 myopia progression control lenses and the third continued to wear Conventional lenses for seven more days...
July 26, 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/28739381/role-of-parafovea-in-blur-perception
#4
Abinaya Priya Venkataraman, Aiswaryah Radhakrishnan, Carlos Dorronsoro, Linda Lundström, Susana Marcos
The blur experienced by our visual system is not uniform across the visual field. Additionally, lens designs with variable power profile such as contact lenses used in presbyopia correction and to control myopia progression create variable blur from the fovea to the periphery. The perceptual changes associated with varying blur profile across the visual field are unclear. We therefore measured the perceived neutral focus with images of different angular subtense (from 4° to 20°) and found that the amount of blur, for which focus is perceived as neutral, increases when the stimulus was extended to cover the parafovea...
August 1, 2017: Vision Research
https://www.readbyqxmd.com/read/28737608/a-randomized-trial-of-soft-multifocal-contact-lenses-for-myopia-control-baseline-data-and-methods
#5
Jeffrey J Walline, Amber Gaume Giannoni, Loraine T Sinnott, Moriah A Chandler, Juan Huang, Donald O Mutti, Lisa A Jones-Jordan, David A Berntsen
SIGNIFICANCE: The Bifocal Lenses In Nearsighted Kids (BLINK) study is the first soft multifocal contact lens myopia control study to compare add powers and measure peripheral refractive error in the vertical meridian, so it will provide important information about the potential mechanism of myopia control. PURPOSE: The BLINK study is a National Eye Institute-sponsored, double-masked, randomized clinical trial to investigate the effects of soft multifocal contact lenses on myopia progression...
July 21, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
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
#6
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/28721004/epithelium-on-photorefractive-intrastromal-cross-linking-pixl-for-reduction-of-low-myopia
#7
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/28719538/misight-assessment-study-spain-a-comparison-of-vision-related-quality-of-life-measures-between-misight-contact-lenses-and-single-vision-spectacles
#8
Alicia Ruiz Pomeda, Belén Pérez-Sánchez, Maria Del Pilar Cañadas Suárez, Francisco Luis Prieto Garrido, Ramón Gutiérrez-Ortega, César Villa-Collar
OBJECTIVES: Recent research has shown that concentric contact lenses (CLs) can be a way to control the progression of myopia. The purpose of the current study was to compare vision-related quality-of-life measures in children wearing distance single-vision (SV) spectacles versus MiSight CLs, a specific concentric design for myopia control. METHODS: Subjects aged 8 to 12 with myopia from -0.75 to -4.00 diopters (D) of sphere and astigmatism less than 1.00 D of cylinder were allocated to the lenses study group (MiSight) or control group (SV)...
July 14, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28718904/autologous-serum-eye-drops-and-enhanced-epithelial-healing-time-after-photorefractive-keratectomy
#9
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/28690485/a-novel-pathogenic-variant-in-the-mitf-gene-segregating-with-a-unique-spectrum-of-ocular-findings-in-an-extended-iranian-waardenburg-syndrome-kindred
#10
Nazanin Jalilian, Mohammad A Tabatabaiefar, Tayyeb Bahrami, Golaleh Karbasi, Mohammad H Bahramian, Abdolrahman Salimpoor, Mohammad R Noori-Daloii
Waardenburg syndrome (WS) is a rare genetic disorder characterized by abnormal pigmentation of the hair, skin, and iris as well as sensorineural hearing loss. WS is subdivided into 4 major types (WS1-4), where WS2 is characterized by the absence of dystopia canthorum. This study was launched to investigate clinical and molecular characteristics of WS in an extended Iranian WS2 family. A comprehensive clinical investigation was performed. Peripheral blood samples were collected and genomic DNA was extracted...
June 2017: Molecular Syndromology
https://www.readbyqxmd.com/read/28689749/iontophoresis-assisted-accelerated-riboflavin-ultraviolet-a-scleral-cross-linking-a-potential-treatment-for-pathologic-myopia
#11
Shuo Rong, Chaoying Wang, Baoyan Han, Pengfei Feng, Weiwei Lan, Zhipeng Gao, Xiaona Li, Weiyi Chen
Scleral collagen cross-linking is one of the most promising treatments to control the pathologic process of myopia. However, the exact procedure and its impact on animal models of myopia are still to be explored. We modified the scleral riboflavin/ultraviolet A (UVA) cross-linking procedure with an iontophoresis-assisted drug delivery system and an accelerated UVA irradiation (10 mW/cm(2), 9 min) and applied this treatment to an animal model of myopia. Ninety-six New Zealand White rabbits developed relatively stable myopia by visual deprivation and then underwent the modified scleral cross-linking surgery...
September 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28682887/atropine-0-5-eyedrops-for-the-treatment-of-children-with-low-myopia-a-randomized-controlled-trial
#12
RANDOMIZED CONTROLLED TRIAL
Yan-Rong Wang, Hong-Li Bian, Qi Wang
BACKGROUND: This study aimed to assess the efficacy and safety of atropine 0.5% eyedrops (ATE) for the treatment of children with low myopia (LM). METHODS: In this study, a total of 126 children with LM were randomly divided into an intervention group (administered 0.5% ATE) and a control group (administered a placebo), with 63 children in each group. The outcome measurements were changes in the spherical equivalent (SE), and axial length (AL), as well as adverse events (AEs)...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28675893/using-high-resolution-3d-magnetic-resonance-imaging-to-quantitatively-analyze-the-shape-of-eyeballs-with-high-myopia-and-provide-assistance-for-posterior-scleral-reinforcement
#13
Baohong Wen, Ge Yang, Jingliang Cheng, Xuemin Jin, Huixia Zhang, Feifei Wang, Chenyu Yan, Dandan Zheng, Tianyong Xu
PURPOSE: To quantitatively analyze the shape of eyes with high myopia and provide assistance for posterior scleral reinforcement (PSR) using high-resolution three-dimensional (3D) magnetic resonance imaging (MRI). METHOD: In all, 260 eyes of 134 patients with high myopia were assessed in this study; 120 emmetropic volunteers were enrolled as a control group. The subjects were examined using 3D T2-weighted CUBE sequences. RESULTS: The eyeballs' axial, horizontal, and vertical lengths were longer and their volume was larger in the subjects with high myopia than in those with emmetropia...
July 5, 2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/28672398/peripheral-design-of-progressive-addition-lenses-and-the-lag-of-accommodation-in-myopes
#14
Tim Schilling, Arne Ohlendorf, Saulius R Varnas, Siegfried Wahl
Purpose: Insufficient accommodative response is assumed to result in myopia progression. We have investigated if the accommodative lag in myopes is different between a single vision lens (SVL) and the progressive addition lens PAL 2, clinically trialled for its ability to reduce progression of myopia, and if there exist differences in accommodative lag between PAL 2 and other PALs with the same addition power (+1.50 D). Methods: The influence of spherical SVL and four different designs of PALs that differ in the near zone width (PAL 1) or that have different signs and magnitude of horizontal gradients of mean power adjacent to their near vision zones (PAL 3 and PAL 4) on the accommodative response was investigated for different near viewing distances (40, 33, and 25 cm) in 31 subjects, aged 18 to 25 years...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28669492/atropine-for-the-prevention-of-myopia-progression-in-children-a-report-by-the-american-academy-of-ophthalmology
#15
Stacy L Pineles, Raymond T Kraker, Deborah K VanderVeen, Amy K Hutchinson, Jennifer A Galvin, Lorri B Wilson, Scott R Lambert
PURPOSE: To review the published literature on the efficacy of topical atropine for the prevention of myopic progression in children. METHODS: Literature searches were last conducted in December 2016 in the PubMed database with no date restrictions, but were limited to studies published in English, and in the Cochrane Library database without any restrictions. The combined searches yielded 98 citations, 23 of which were reviewed in full text. Of these, 17 articles were deemed appropriate for inclusion in this assessment and subsequently were assigned a level of evidence rating by the panel methodologist...
June 29, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28666677/microstructural-evaluation-of-the-mucin-balls-and-their-relations-to-the-corneal-surface-insights-by-in-vivo-confocal-microscopy
#16
Christina N Grupcheva, Dimitar I Grupchev, Mladena N Radeva, Desislava I Vankova, Yana M Manolova
PURPOSE: The purpose of the current study was to observe and correlate the characteristics of mucin balls to the ocular surface properties, and furthermore, to report the effect of different mucin balls size and number on structural alteration of the anterior cornea. METHODS: The study included, two groups of patients fitted with one-month continuous, extended wear lenses for therapeutic (group 1) and optical (group 2) purposes; the later serving as a control group...
June 27, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28657533/-the-ametrop%C3%A3-as-updated-review-for-non-ophthalmologists-physicians
#17
REVIEW
Virgilio Galvis, Alejandro Tello, Oscar Blanco, Andrea N Laiton, Marion R Dueñas, Priscila Alejandra Hidalgo
Refractive errors are caused by a decoupling of the power of convergence of the eye lens, the cornea and lens, which make the rays reaching the eye to focus and generate an image, and the retina, which is the biological photosensitive screen where the image will be transformed into a nerve impulse. These defects include myopia, hyperopia and astigmatism. Presbyopia can also be considered a refractive defect, but of special features, since only affects near vision in patients older than 40 years. By altering the quality of the focused image on the most sensitive area of the retina (the macula), they decrease visual acuity...
2017: Revista de la Facultad de Ciencias Médicas
https://www.readbyqxmd.com/read/28653613/myopia-correction-in-children-a-meta-analysis
#18
Yanhui Cui, Li Li, Qian Wu, Junyang Zhao, Huihui Chu, Gang Yu, Wenbin Wei
PURPOSE: The purpose of this study was to conduct a meta-analysis comparing rigid gas permeable lenses (RGP) with soft contact lenses (SCL), spectacles and orthokeratology (OK) lenses for myopia control with respect to axial length elongation, spherical equivalent and measures of corneal curvature. METHODS: Medline, Cochrane, EMBASE, and Google Scholar databases were searched to September 29, 2015 using the following keywords: rigid gas permeable contact lens; refractive error; and refractive abnormalities...
June 26, 2017: Clinical and Investigative Medicine. Médecine Clinique et Experimentale
https://www.readbyqxmd.com/read/28632734/choroidal-thickness-in-patients-with-coronary-artery-disease
#19
Meleha Ahmad, Patrick A Kaszubski, Lucy Cobbs, Harmony Reynolds, Roland Theodore Smith
PURPOSE: To evaluate choroidal thickness (CTh) in patients with coronary artery disease (CAD) compared to healthy controls. DESIGN: Cross-sectional. METHODS: Setting: Ambulatory clinic of a large city hospital. Patient population: Thirty-four patients had documented CAD, defined as history of >50% obstruction in at least one coronary artery on cardiac catheterization, positive stress test, ST elevation myocardial infarction, or revascularization procedure...
2017: PloS One
https://www.readbyqxmd.com/read/28631305/two-years-results-of-small-incision-lenticule-extraction-and-wavefront-guided-laser-in%C3%A2-situ-keratomileusis-for-myopia
#20
Hidenaga Kobashi, Kazutaka Kamiya, Akihito Igarashi, Masahide Takahashi, Kimiya Shimizu
PURPOSE: To compare the 2-years visual and refractive outcomes between small-incision lenticule extraction (SMILE) and wavefront-guided laser in situ keratomileusis (LASIK) in eyes with myopia and myopic astigmatism. METHODS: Our retrospective case-control study examined 30 eyes of 30 patients with the manifest refraction spherical equivalent (MRSE) of -3.71 ± 1.83 dioptres (D) who underwent SMILE and 30 eyes of 30 patients with MRSE of -3.81 ± 1.40 D who underwent wavefront-guided LASIK...
June 20, 2017: Acta Ophthalmologica
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