The effects of horizontal heterophoria on Howard-Dolman stereopsis scores were investigated in a population of 1765 stereophotogrammetrists with no obvious impediment to binocular vision as determined in a vision screening. Exophoria over the 1 to 7 delta range showed no systematic and statistically valid effect on stereopsis but esophoria did show an effect. In a related population of 1339 stereophotogrammetrists, subjects with as little as 1 delta (+/- 0.5 delta) of vertical heterophoria exhibited a small but statistically significant decrease in stereopsis test scores compared to those with vertical orthophoria. Therefore, a heterophoria had different effects on stereoacuity depending on whether it was in the exo, eso, or vertical direction. An explanation for the difference is proposed using the known dependence of heterophoria and stereoacuity on fixation disparity.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Effect of inferior oblique anterior transposition on vertical deviation.
Int Ophthalmol
January 2025
Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, Jilin, China.
Purpose: To evaluate the efficacy and complications of simplified graded inferior oblique anterior transposition (IOAT) in treating at least 10 PD vertical deviation in the primary position and inferior oblique muscle overaction (IOOA).
Methods: This retrospective study reviewed the medical records of 65 patients treated with simplified graded IOAT procedures for both vertical deviation and IOOA. Patients were grouped according to vertical deviation in the primary position.
Psychophysical assessment of color vision with the Cambridge Color Vision Test in unilateral functional amblyopia.
Arq Bras Oftalmol
January 2025
Research Nucleus in Neuroscience and Behavior and Applied Neuroscience, Universidade de São Paulo, São Paulo, SP, Brazil.
Purpose: Amblyopia is a cortical neurological disorder caused by abnormal visual experiences during the critical period for visual development. Recent works have shown that, in addition to the well-known visual alterations, such as changes in visual acuity, several perceptual aspects of vision are affected. This study aims to analyze and compare the effects of different types of amblyopia on visual color processing and determine whether these effects are correlated with visual acuity.
View Article and Find Full Text PDFThe effect of low hypermetropia correction and office-based orthoptic training on binocular vision parameters in children with convergence insufficiency.
J AAPOS
January 2025
Department of Binocular Vision Pathophysiology and Strabismus, Medical University of Lodz, University Barlicki Hospital No.1, Lodz, Poland.
Purpose: To determine the effect of low hypermetropia correction and orthoptic exercises on binocular visual function in children with symptomatic convergence insufficiency.
Methods: This was a prospective, randomized intervention with a 3-month follow-up. Consecutive pediatric patients with convergence insufficiency and hypermetropia who met inclusion criteria were randomly assigned to one of three treatment groups: spectacle correction and orthoptic training (group 1), spectacle correction alone (group 2) and orthoptic training alone (group 3).
Analysis of the effect of congenital unilateral trochlear nerve paresis on retinal vascular density: a retrospective study.
J AAPOS
January 2025
University of Health Sciences, Department of Ophthalmology, Başakşehir Cam and Sakura City Hospital, Istanbul, Turkey.
Purpose: To use swept-source optical coherence tomography angiography (SS-OCTA) to investigate the alterations in retinal vascular density (VD) in patients presenting with congenital unilateral trochlear nerve palsy.
Methods: The medical records of patients diagnosed with congenital unilateral trochlear nerve palsy and those of a healthy control group were reviewed retrospectively. Comprehensive ocular examinations and SS-OCTA imaging were conducted.
The Effect of Anesthetic Depth on the Occurrence of Emergence Delirium in Children Undergoing Strabismus Surgery: A Prospective Observational Study.
Biomedicines
December 2024
Department of Anesthesiology and Pain Medicine, Seoul National University Bundang Hospital, Seongnam 13620, Republic of Korea.
Background/objectives: Emergence delirium (ED) is one of the most frequent postoperative complications in pediatric patients after general anesthesia. In adults, a deeper intraoperative level of anesthesia has been reported as an independent predictor of postoperative delirium. However, the effect of anesthetic depth on ED has rarely been demonstrated in the pediatric population.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!