title: Further evidence for the fusional nature of the compensation (or 'eating up') of prisms in concomitant strabismus.
abstract: The fusional nature of the phenomenon of prism compensation in strabismus was studied. At first a general survey was performed on the characteristics of anomalous fusional movements (a.f.m.). The influence of different kinds of stimuli (foveal and peripheral fusionable targets, non-fusionable targets) on a.f.m. was considered, and finally the effect of a sensorial obstacle to fusion was investiaged. It is concluded that 'eating up' the prisms is definitely a phenomenon of fusional nature, although it has special features which are interpreted as a consequence of the initial pathological condition. In this way the puzzling prism compensation also in subjects with normal retinal correspondence may be explained.
mesh_terms: D002648:Child; D002675:Child, Preschool; D004948:Esotropia / Q000503:physiopathology / Q000628:therapy*; D005133:Eye Movements; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007909:Lenses / Q000592:standards*; D013285:Strabismus / Q000503:physiopathology / Q000628:therapy*; D014787:Vision Tests