[Postoperativ binocular function after full prismatic correction in patients with concomitant convergent strabismus and exuberance of convergence (author's transl)].
We investigated the cases of 50 non amblyopic children with concomitant convergent strabismus and exuberance of convergence, in which a prolonged prismatic correction was performed. 31 children had a 5 degree higher angle of squint in near vision before the application of prism. In 13 out of 31 the angle of squint, which was measured at the gaze for distance, increased more than 6 degrees. The ratio of normal retinal correspondence (NRC) to abnormal retinal correspondence  (ARC) is 14:17. 19 patients developed only after prismatic correction of the angle of squint an exuberance of convergence. This phenomenon we call secundary exuberance of convergence. In this group the angle of squint for distance vision increased in only three children more than 6 degrees, while 6 children had a decrease by up to 11 degrees. The ratio NRC: ARC is 7:12. Postoperativ follow-up of binocular function over 4-5 years showed, that the prognosis in case of primary exuberance of convergence is worse than in secondary.
D002648:Child; D002675:Child, Preschool; D005403:Fixation, Ocular; D006801:Humans; D011183:Postoperative Complications; D011379:Prognosis; D013285:Strabismus / Q000601:surgery*; D014785:Vision, Ocular; D014794:Visual Fields
Postoperatives Binokularsehen nach Prismenausgleich bei Einwärtsschielern mit Konvergenzüberschuss