Does Latent Strabismus Affect Stereoacuity?
Journal Title: European Archives of Medical Research - Year 2021, Vol 37, Issue 1
Abstract
Objective: The purpose of this study is to determine the effect of latent strabismus on stereoacuity. Methods: Stereoacuities of normal individuals, ranging in age from 18 to 35 years, were measured using the TNO or Titmus tests. The study population was divided into 2 groups regarding the achievement of the accepted excellent stereoacuity threshold of 30 arcseconds (group A) or not (group B). The relationship between latent deviation angles and stereoacuity levels were evaluated. Results: Latent deviation angles ranged from 0 to 35 prism diopters (PD). Both TNO (r=0.380 p=0.002) and Titmus (r=0.306 p=0.015) stereothresholds tended to increase as the latent deviation angles increased. Group A included 27 participants who had either exophoria (18) or orthophoria (9), and the mean deviation angle of this group was 3.07±3.26 PD. Group B included 36 participants, 28 of whom had exophoria, three had esophoria, and the remaining five had orthophoria. The mean angle of deviation in group B was 6.50±6.92 PD. This value was statistically higher than the mean deviation angle in group A (p=0.012). Though none of the esophoric participants achieved excellent stereoacuity, the distribution of the deviation types did not cause any difference between the groups (p=0.077). The mean age of group A was found to be higher than that of group B (p=0.006). Conclusion: Latent deviation can mask true stereosensitivity potentials of subjects to some extent during the stereotesting procedure.
Authors and Affiliations
Feray Koç, Berkay Akmaz, Nazife Sefi Yurdakul
Keywords
Related Articles
- EP ID EP693345
- DOI 10.4274/eamr.galenos.2020.72692
- Views 74
- Downloads 0
Prediction of Single Dose Methotrexate Success in Ectopic Pregnancy Treatment
Objective: To investigate the efficacy of single-dose methotrexate treatment and the factors affecting its success in the treatment of ectopic pregnancy. Methods: Ectopic pregnancy cases treated with single dose methotr...
Extracorporeal Membrane Oxygenation Support on Acute Fulminant Myocarditis Associated with Parainfluenza Infection: A Case Report
Acute fulminant myocarditis (AFM) is a clinical condition that can lead to sudden onset of rapidly progressing cardiogenic shock with significant arrhythmia and possible cardiac arrest. Mechanical circulation support has...
Evaluation of Dynamic Hyperinflation with Negative Expiratory Pressure Method in Patients with Chronic Obstructive Pulmonary Disease
Objective: Chronic Obstructive Pulmonary disease (COPD) is a disease characterized by progressive airflow limitation, which is not fully reversible. Expiratory flow limitation (EFL) is the most common cause of dynamic hy...
Asymmetric Dimethylarginine Level as an Indicator for Cardiovascular Risk in Patients with Metabolic Syndrome
Objective: This study aimed to make an early diagnosis of endothelial dysfunction, the initial pathology of atherosclerosis in metabolic syndrome (MS) patients, and to investigate the usefulness of serum asymmetric dimet...
Measles-Mumps-Rubella Vaccination of Patients with Egg Allergy: One Center Experience
Objective: Measles-Mumps-Rubella (MMR) vaccine is a live vaccine. Measles and mumps are cultured in chick embryo fibroblasts, and rubella is cultured in human diploid cell culture. MMR vaccine contains egg protein and th...