Comparison of anisometropes with and without amblyopia

• Main Authors: Huban Atilla, Necile Erkam
• Format: Article
• Language: English
• Published: Wolters Kluwer Medknow Publications 2011-01-01
• Series: Indian Journal of Ophthalmology
• Subjects: Ahmed glaucoma valve; hypotony; post-penetrating-keratoplasty glaucoma; tube extrusion; scleral patch; Ranibizumab; bevacizumab; choroidal neovascular membrane; age-related macular degeneration; intravitreal injection; central macular thickness; best corrected visual acuity; Intravitreal injection; methotrexate; pharmacokinetics; Contrast sensitivity; diabetes; glare; pupil cycle time; Anemia; diabetic retinopathy; microalbuminuria; severity; Objective Structured Clinical Examination; ophthalmology; undergraduate; Anisometropia; anisometropic amblyopia; fusion; stereopsis
• Online Access: http://www.ijo.in/article.asp?issn=0301-4738;year=2011;volume=59;issue=3;spage=215;epage=216;aulast=Atilla

Background: To compare binocular functions in amblyopic and non-amblyopic anisometropes and to investigate the possible associated factors for amblyopia development such as type of refractive error and initial age of refractive error correction. Materials and Methods: Prospectively anisometropic subjects with (n=42) and without amblyopia (n=33) were included in the study. Full ophthalmological examination including binocularity and motility was performed. Results: There was no statistically significant difference between the ages at the time of initial refractive error correction ( p0 =0.946). All of the anisometropes (100%) had fusion with Worth 4-dot test and Bagolini glasses. However 81% of amblyopic subjects had fusion with Worth 4 dot test and 88.1% had normal response with Bagolini glasses. Median stereopsis was 60 sec of arc in anisometropic subjects and 400 sec of arc in amblyopes. Conclusion: Our data support that, binocular functions are well developed in anisometropes without amblyopia and initial age at correction of refractive error has no primary effect on development of amblyopia.