Detecting Visuoperceptive Defects in Adolescent and Adult Disabled Readers with the TETRA Analyzer™. Pathological Sample and Comparison with Normal Readers
Journal Title: Ophthalmology Research: An International Journal - Year 2017, Vol 7, Issue 4
Abstract
Aims: To investigate visuoperceptive abnormalities in adult dyslexics with the TETRA Analyzer™, and to compare the results with those obtained with normal adult readers. Study Design: Epidemiological study. Place and Duration of Study: Service of Neuro-Ophthalmology, University of Turin, Italy, between April 2016 and October 2017. Methodology: Ocular dominance, spatial relationship perception, and interocular visual input have been tested in 25 adolescent and adult dyslexic readers (age 11-34 years) with the TETRA Analyzer™. The TETRA Analyzer™ is a set of 4 exams devised to evaluate ocular dominance (Domitest M), spatial relationship perception (Eidomorphometry), interocular sensory pattern (Domitest S), and their effect of the reading performance (Reading Performance Test, REPORT). Results have been compared with the normative data of a sample of adult subjects (“mature readers”) gathered in a previous investigation. Results: Compared to mature readers, a higher proportion of adult dyslexics showed dominance instability (20% vs 4%). Average spatial relationship anisotropy was up to threefold higher in adult dyslexics (3.54% vs 1.32% in mature readers). The distribution of the interocular inhibition was bimodal, resembling that of immature readers (children). The reading rate of non words was strongly affected by the inter-letter spacing (R2=0.50, P=.01), in support of an involvement of these alterations in affecting the lexical function. Conclusion: Defective visuoperceptive functions can play a role not only in children but even in adult dyslexic. The resemblance of dominance, spatial relationship perception and especially interocular inhibitory pattern of adult dyslexics and immature readers may be the sign that a stunt or delay of the normal development of these visuoperceptive functions takes place in a subpopulation of dyslexic subjects.
Authors and Affiliations
Carlo Aleci, Valentina Saldutto, Lorenzo Canavese
Keywords
Related Articles
- EP ID EP309296
- DOI 10.9734/OR/2017/37851
- Views 110
- Downloads 0
Blindness Resulting from Instillation of Miss Paris Perfume into a 2 Year Old Child’s Eyes during Febrile Convulsion: Case Report
Convulsion is frightening when it occurs and some caregivers even think that the child is dying. Efforts are usually made to stop the convulsion at all cost. Many of the interventions carried out are useless, and some ar...
Ishihara Electronic Color Blindness Test: An Evaluation Study
Purpose: Evaluation of computer based color deficiency test. Materials and Methods: Two hundred and sixty seven volunteers have been checked using both traditional Ishihara plates and a computer diagnosis program using L...
Intraoperative Complications of Laser in Situ Keratomileusis in Yazd
Purpose: Laser in situ keratomileusis (LASIK) is a popular method for correcting refractive errors. We survived the incidence and types of LASIK intraoperative flap complications in Yazd refractive surgery center. Method...
A Patient’s Viewpoint of Cataract and Retinal Detachment Surgeries
Aims: The purpose of this paper is to (1) describe the changing details of a complex medical case study from the patient’s view allowing the reader to continually evaluate complications resulting from cataract and retina...
Rasayana Pills in Cataract- An Integration of Ancient Knowledge and Scientific Evidences
Introduction: Cataract is a principal cause of blindness in the world. Surgery, the major prevailing therapeutic approach for cataract is laced with various complications that include iris prolapse, raised intraocular pr...