Lateral Phenotypes in Children with Ophthalmopathology

Abstract

The work is devoted to one of the most relevant problems of ophthalmology and neurophysiology which is the study of interhemispheric interactions in children with ophthalmopathology.The purpose of this work is to study lateral phenotypes in children with ophthalmopathology.Patients and methods. 374 6–15 years old children were observed: 1) 160 children with non-paralytic strabismus; 2) 111 children with organic pathology of the retina and the optic nerve; 3) 103 children of the control group (without ophthalmopathology). The lateral phenotype (LP) was determined according to the scheme “dominant hand — dominant ear — dominant eye”.Results. Different LP ratios were obtained in the examined groups of children (p < 0.001). The ratio of right-handers / left-handers / ambidextrous children was most uniform in the group of children with non-paralytic strabismus (43,8 / 22,5 / 33,7 %). In the group of children with organic ophthalmopathology it was “shifted” to the right-hand side (65,8 / 10,8 / 23,4 %). In the control group the number of left-handers was minimal, and the number of ambidextrous was maximal (51,4 / 3,9 / 44,7).Conclusion. It was found that children with organic ophthalmopathology are characterized by the most pronounced predominance of right-sided LP, and children with non-paralytic strabismus are characterized by a relatively uniform distribution of right-sided, left-sided and symmetrical LP. The identified features may reflect increased left-hemispheric activity in children with organic ophthalmopathology and adaptivecompensatory increase in right-hemispheric activity in children with non-paralytic strabismus.

Keywords

• lateral phenotypes
• interhemispheric asymmetry
• ophthalmopathology
• functional treatment of strabismus