Prevalence of general dysfunctions in binocular vision
A 1-year clinical trial to determine the prevalence of general dysfunctions in binocular vision in a nonpresbyopic population was conducted in 1679 subjects aged 18 to 38 years. A thorough eye examination included binocular vision testing. A high prevalence of binocular vision dysfunctions was found. Of the subjects, 56.2% presented symptoms of binocular dysfunctions, 61.4% with accommodation disorders and 38.6% vergence disorders. Accommodation insufficiency was most prevalent among those with symptoms (11.4%).
KeywordsBinocular Vision Asthenopia Uncorrected Refractive Error General Dysfunction Subjective Refraction
Unable to display preview. Download preview PDF.
- 4.Griffin JR. Binocular Anomalies: Procedures for Vision Therapy. 2nd ed. Chicago, Ill: Professional Press; 1982: chap 1.Google Scholar
- 7.Pickwel LD. Binocular Vision Anomalies: Investigation and Treatment. 2nd ed. London, England: Butterworth; 1989.Google Scholar
- 8.Regan D. Binocular vision. In: Regan D, ed. Vision and Visual Dysfunction. London, England: MacMillan Press; 1991:46–70.Google Scholar
- 11.Benjamin, WJ. Fusion and binocularity. 1st ed. In: Clinical Refraction. Philadelphia, Pa: WB Saunders Co; 1998:255–278.Google Scholar
- 12.Grosvenor T. Anomalies of refraction and binocular vision. In: Grosvenor T, ed. Primary Care Optometry. 3rd ed. Washington, DC: Butterworth-Heinemann; 1996.Google Scholar
- 13.Scheiman M, Wick B. Clinical Management of Binocular Vision: Heterophoric Accommodative, and Eye Movement Disorders. Philadelphia, Pa: JB Lippincott Co; 1994:3–31.Google Scholar