[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 10, Issue 37 (4-2005) ::
__Armaghane Danesh__ 2005, 10(37): 1-7 Back to browse issues page
Study of Visual Acuity and Comparison of Snellen Chart and Retinoscopy in Diagnosis of Refractive Errors
E Shirzadeh 1, A KhosroAbadi
1- , dreshirzad@medsab.ac.ir
Abstract:   (4545 Views)
ABSTRACT: Introduction & Objective: Refractive errors play important role in the etiology and treatment of strabismus and amblyopia. As screening is one of the common techniques in diagnosing visual disorders, children are, therefore, to be examined for the health of their vision at least once a year. This study is intended to compare the accuracy of Snellen chart and retinoscopy in diagnosis of refractive errors. Materials & Methods: The target population included guidance-school children in grade one from Sabzevar (2008 female and 2085 male subjects). Relevant data were collected through interview and clinical examination. Visual acuity of the subjects was examined from a distance of 6m by Snellen chart and those with VA<10/10 were examined with retinoscopy by an ophthalmologist. Results: The mean visual acuity of both eyes in girls and boys obtained by the Snellen chart turned out to be 0.95±0.12 and 0.97±0.09 respectively. Also, 294 subjects appeared to be suffering from refractive errors. In 65% of the cases a significant difference was found between Snellen chart and retinoscopy in diagnosis of refractive errors (p<0.05). Conclusion: Further research is suggested to reveal the possibility of differences of VA between girls and boys.
Keywords: KEYWORDS:Visual acuity, Snellen chart, Retinoscopy, Refractive error
Full-Text [PDF 122 kb]   (796 Downloads)    
Type of Study: Research | Subject: Special
Received: 2015/06/10 | Accepted: 2015/06/10 | Published: 2015/06/10
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA


XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Shirzadeh E, KhosroAbadi A. Study of Visual Acuity and Comparison of Snellen Chart and Retinoscopy in Diagnosis of Refractive Errors . Armaghane danesh. 2005; 10 (37) :1-7
URL: http://armaghanj.yums.ac.ir/article-1-802-en.html


Volume 10, Issue 37 (4-2005) Back to browse issues page
ارمغان دانش Armaghane danesh
Persian site map - English site map - Created in 0.04 seconds with 30 queries by YEKTAWEB 4319