PURPOSE To determine the prevalence of refractive errors and to investigate factors associated with refractive error in adults 30 years of age and older in Bangladesh. DESIGN Cross-sectional study. PARTICIPANTS A nationally representative sample of 12 782 adults 30 years of age and older. METHODS The sample of subjects was selected based on multistage, cluster random sampling with probabi...

Universally, refractive error is one of the common causes of visual impairment and blindness [1-3]. A total of about 153 million people have been estimated to be visually impaired from uncorrected refractive errors. Out of out this number, about 8 million are blind [1]. Uncorrected refractive error remains the main cause of low vision globally [4]. Refractive errors that go uncorrected could ha...

LASIK (laser-assisted in situ keratomileusis) is a common laser refractive procedure for myopia and astigmatism, involving permanent removal of anterior corneal stromal tissue by excimer ablation beneath a hinged flap. Correction of refractive error is achieved by the resulting change in the curvature of the cornea and is limited by central corneal thickness, as a thin residual stromal bed may ...

PURPOSE To evaluate refractive and visual outcomes of secondary piggyback intraocular lens implantation in patients diagnosed as having residual ametropia following segmental multifocal lens implantation. METHODS Data of 80 pseudophakic eyes with ametropia that underwent Sulcoflex aspheric 653L intraocular lens implantation (Rayner Intraocular Lenses Ltd., East Sussex, United Kingdom) to corr...

These include: References http://bjo.bmjjournals.com/cgi/content/full/90/5/521#BIBL This article cites 27 articles, 14 of which can be accessed free at: Rapid responses http://bjo.bmjjournals.com/cgi/eletter-submit/90/5/521 You can respond to this article at: service Email alerting top right corner of the article Receive free email alerts when new articles cite this article sign up in the box a...

66 CataraCt & refraCtive Surgery today euroPe SePtember 2012 The Munnerlyn ablation profiles first used in laser vision correction did not respect the normal prolate shape of the cornea. As a result, these profiles induced aberrations that reduced patients’ quality of vision. In recent years, enhanced understanding and technological adaptation to address spherocylindrical refractive error and h...

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 fou...

PURPOSE To investigate whether three-dimensional (3D) images cause nearwork-induced transient myopia (NITM) more than 2D images and whether there is any difference between 3D images with crossed and uncrossed disparities in the development of NITM. METHODS Twenty-five volunteers, enrolled in this study, watched 2D and 3D movies and read 3D texts with crossed and uncrossed disparities for 2 to...

conclusions based on our study, the prevalence of myopia is more than other types of refractive error, which is similar to that reported in previous studies on other school-age populations in some asian countries. the high prevalence of refractive error among school-age children indicated that untreated refractive error is one of the most common public health problems. patients and methods in t...