Depth perception in strabismus SIR, Recently Henson and Williams published an article entitled 'Depth perception in strabismus." Regettably, the authors did not review the literature completely. If they had, they would have noted that Cooper and Warshowsky2 scientifically evaluated monocular cues in the Titmus stereo test, and that Cooper and Feldman36 looked at the availability of monocular cu...

OBJECTIVE To assess stereoacuity in a population-based sample of children and to examine ocular and systemic parameters related to stereoacuity. METHODS Using a random cluster sampling method, four- to 18-year-old children from kindergartens, elementary schools, junior high schools and senior high schools from a rural area and an urban area in the East Chinese province of Shandong were includ...

introduction: amblyopia is reduced vision in an eye that has not received adequate use during early childhood.  the most common cause of unilateral visual loss in children is amblyopia with prevalence rate of 1-4 percent in pre-school children . however, effective treatments may prevent intensive complication. this study was done to assess the treatment effects of amplyopia patients who have re...

BACKGROUND This is a retrospective study to determine the outcomes of the surgical correction in long-standing infantile esotropia with cross fixation. METHODS Medical charts of a group of patients with esotropia who had cross fixation and underwent surgery for strabismus between January 1991 and December 2004 were reviewed. The mean follow-up time was 4.7 years. Binocularity was measured by ...

PURPOSE To determine the prevalence rate and related risk factors of reoperation among patients with congenital esotropia. METHODS One hundred fifty-seven children with congenital esotropia were divided into two groups after at least one operation: children with deviation within 10 PD (n = 89; success group) and those with deviation greater than 10 PD or history of reoperation (n = 68; failur...

OBJECTIVES To examine deficits in monocular and binocular vision in adults with amblyopia and to test the following 2 hypotheses: (1) Regardless of clinical subtype, the degree of impairment in binocular integration predicts the pattern of monocular acuity deficits. (2) Subjects who lack binocular integration exhibit the most severe interocular suppression. METHODS Seven subjects with anisome...

To investigate the effect of manipulating disparity on task performance and viewing comfort, twelve participants were tested on a virtual object precision placement task while viewing a stereoscopic 3D (S3D) display. All participants had normal or corrected-to-normal visual acuity, passed the Titmus stereovision clinical test, and demonstrated normal binocular function, including phorias and bi...

In this study, which investigates the relationship between the levels of stereopsis with eye and hand dominance or interpupillary distance, 120 healthy young volunteers were investigated. Eye dominance was determined by modified Miles technique following a complete eye examination. Handedness was assessed with the Edinburgh handedness inventory. Interpupillary distance was measured with millime...

PURPOSE To determine the visual characteristics of Japanese subjects with the Waardenburg syndrome type 2. METHODS The visual functions of 11 albino patients who were identified from the screening of 240 children attending a school for children with a hearing deficit were studied. The ophthalmological examinations included eye position, visual acuity, biomicroscopy, ophthalmoscopy, visual fie...

INTRODUCTION The aims of this study are to compare the binocular function following 7mm vs. standard (3.5 to 6.5mm) bilateral medial rectus recessions, and to determine whether timing of surgery or duration of misalignment prior to surgery impact on binocular function. Methods : Participants were 85 children with infantile esotropia: all had deviations of 50(Δ) or more and were followed for a m...