نتایج جستجو برای: acute myopia

تعداد نتایج: 503751  

Journal: :Medicina 2023

Myopia continues to be a serious public health problem due the steady increase in prevalence of disease and presence complications leading loss vision. The aim study was investigate myopia among medical students. Materials methods. A self-reported questionnaire used collect myopia-related data 1st-6th year students various faculties Kazan State Medical University. assessed using record patient ...

2017
Bethany A. Kloss Stuart W. Tompson Kristina N. Whisenhunt Krystina L. Quow Samuel J. Huang Derek M. Pavelec Thomas Rosenberg Terri L. Young

Purpose To identify causal gene mutations in 14 families with autosomal dominant (AD) high myopia using exome sequencing. Methods Select individuals from 14 large Caucasian families with high myopia were exome sequenced. Gene variants were filtered to identify potential pathogenic changes. Sanger sequencing was used to confirm variants in original DNA, and to test for disease cosegregation in...

2014
Xinying Xiang Tianyun Wang Ping Tong Yunping Li Hui Guo Anran Wan Lu Xia Yanling Liu Ying Li Qi Tian Lu Shen Xinzhang Cai Lei Tian Xuemin Jin Kun Xia Zhengmao Hu

PURPOSE Myopia, or near-sightedness, is one of the most common human visual impairments worldwide, and high myopia is one of the leading causes of blindness. In this study, we investigated the mutation spectrum of ZNF644, a causative gene for autosomal dominant high myopia, in a high-myopia cohort from a Chinese population. METHODS DNA was isolated with the standard proteinase K digestion and...

Journal: :The British journal of ophthalmology 2005
S M Saw W H Chua G Gazzard D Koh D T H Tan R A Stone

AIMS To assess the longitudinal changes in biometric parameters and associated factors in young myopic children aged 7--9 years followed prospectively in Singapore. METHODS Children aged 7--9 years from three Singapore schools were invited to participate in the SCORM (Singapore Cohort study Of the Risk factors for Myopia) study. Yearly eye examinations involving biometry measures were perform...

Journal: :Vision Research 2006
Patrick W.K. Ting Katrina L. Schmid Carly S.Y. Lam Marion H. Edwards

While instrument myopia is known to occur when microscopes are used, little is known about the accommodation response during microscopy, or about the factors which may alter the magnitude of instrument myopia. In addition, there has been no real-time objective measurement of instrument myopia during the microscopy task. Twenty inexperienced subjects and 10 experienced microscopists (average wor...

2005
Loren Cordain S. Boyd Eaton Jennie Brand Miller Staffan Lindeberg

The available evidence suggests that both genes and environment play a crucial role in the development of juvenile onset myopia. When the human visual system is examined from an evolutionary perspective, it becomes apparent that humans, living in the original environmental niche (hunter-gatherer) for which our species is genetically adapted, are either slightly hypermetropic or emmetropic and r...

2017
Atul Kumar Rohan Chawla Devesh Kumawat Ganesh Pillay

The incidence of myopia is constantly on the rise. Patients of high myopia and pathological myopia are young and can lose vision due to a number of degenerative changes occurring at the macula. With the emergence of new technologies such as swept-source optical coherence tomography (OCT) and OCT angiography, our understanding of macular pathology in myopia has improved significantly. New condit...

Journal: :Investigative ophthalmology & visual science 2015
Kai Guo Da Yong Yang Yan Wang Xian Rong Yang Xin Xia Jing Yuan Yuan Guo Dan Zhu Qi Sheng You Yong Tao Jost B Jonas

PURPOSE To determine the prevalence and associations of myopia in schoolchildren in provincial Western China. METHODS In the school-based observational cross-sectional Gobi Desert Children Eye Study, cylcoplegic refractometry as part of a comprehensive ophthalmic examination was performed in all schools in the oasis region of Ejina. Out of 1911 eligible children, 1565 (81.9%) children with a ...

Journal: :Contact lens & anterior eye : the journal of the British Contact Lens Association 2016
James S Wolffsohn Antonio Calossi Pauline Cho Kate Gifford Lyndon Jones Ming Li Cesar Lipener Nicola S Logan Florence Malet Sofia Matos Jose Manuel Gonzalez Meijome Jason J Nichols Janis B Orr Jacinto Santodomingo-Rubido Tania Schaefer Nilesh Thite Eef van der Worp Madara Zvirgzdina

PURPOSE Myopia is a global public health issue; however, no information exists as to how potential myopia retardation strategies are being adopted globally. METHODS A self-administrated, internet-based questionnaire was distributed in six languages, through professional bodies to eye care practitioners globally. The questions examined: awareness of increasing myopia prevalence, perceived effi...

Journal: :بینا 0
حمید نوروزی h norouzi تهران- خیابان پاسداران- بوستان نهم-، بیمارستان لبافی نژاد- مرکز تحقیقات چشم آزاده اکبری a akbari آرش انیسیان a anisian تهران- خیابان پاسداران- بوستان نهم-، بیمارستان لبافی نژاد- مرکز تحقیقات چشم

purpose: to evaluate the visual outcomes of lasik in myopic eyes. methods: this interventional case series was performed on records of 345 eyes of 179 patients for correcting myopia with astigmatism < 3.00 diopter (d). all patients were operated by one surgeon (h.n.) with the nidek ec 5000 excimer laser. all patients had at least one year follow up. based on preoperative refraction, patients we...

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