Myopia studies are notoriously difficult to carry out. Past studies on intervention in myopia progression have given conflicting results. Beside inaccurate and inadequate measurements, the most important cause for this is the very variable nature of myopia, which makes it difficult to achieve baseline comparability between the control and the study group. Although there were inclusion criteria ...

background: myopia has different prevalence rate worldwide and there is controversial points about its environmental risk factors. the prevalence of myopia in medical interns atshirazmedicalschool and its probable risk factors were studied.   method: in this retrospective cross-sectional study, three hundred interns (7 th -year medical students) at shiraz university of medical sciences were exa...

A cross-sectional study on a normal clinical myopic population reveals that there is a difference in the pattern of myopic progression between Malays and Chinese in Malaysia. It shows that while myopia in Malays stays relatively constant throughout 10 to 50 years of age, myopia in Chinese progresses rapidly from 10 to 20 years of age, after which it starts to show hyperopic shift, reaching a le...

purpose: to compare the safety, efficacy, predictability, stability and complications of wavefront-guided laser-assisted subepithelial keratectomy (lasek) in low myopia, myopic astigmatism and high myopia correction. methods: in his retrospective study, 416 eyes were divided to 3 groups: 159 eyes with low myopia (lm) and mean refractive spherical equivalent (mrse) of -3.68±1.33 (sd) diopter (d)...

In a sample of undergraduate students, myopia was associated with higher Math and Total SAT score, and males had higher Math and Total SAT scores than females. The association between myopia and higher Math and Total SAT scores was significant only among males, and the gender differences in Math and Total SAT scores were significant only among allergic participants. There were also significant ...

PURPOSE To determine the utility of a child's first grade refractive error and parental history of myopia as predictors of myopia onset between the second and eighth grades. METHODS Subjects were nonmyopic children in the first grade who were enrolled in the Collaborative Longitudinal Evaluation of Ethnicity and Refractive Error (CLEERE) Study. Myopia was defined as -0.75 D or more myopia in ...

PURPOSE To test the hypothesis that relative peripheral hyperopia predicts development and progression of myopia. METHODS Refraction along the horizontal visual field was measured under cycloplegia at visual field angles of 0°, ±15°, and ±30° at baseline, 1 and 2 years in over 1700 initially 7-year-old Chinese children, and at baseline and 1 year in over 1000 initially 14-year olds. One refra...

CLINICAL CASE A 23-year-old woman who was seen due to decreasing far visual acuity 24hours after starting treatment with topiramate. In the cycloplegic refraction, RE showed -4.25 and LE -4.50. Retinal striae could be seen in the macula of both eyes. The alterations ceased 48hours after the drug treatment was interrupted. DISCUSSION Drug induced acute myopia is an infrequent phenomenon, the a...

The present study was conducted to determine the prevalence of myopia in young students of Bahaudin Zakariya University, Multan. A total sample of 620 students of both gender (male=295; female=325) was collected during 2014. The data was divided in two breeding pattern groups, five groups on account of age at myopia onset and different family size. Out of 620 subjects, 150 had myopia (male=85; ...