The diagnosis and surgical treatment of congenital convergent strabismus with a vertical component

Examination of eyes in a polarized light in 108 children and 24 adults with congenital concomitant convergent squint with a vertical component has shown displacement of internal angles of the rhombus of interference pictures from the horizontal axis, this speaking about anomaly of internal rectus muscles insertion. The patients with congenital squint were treated by two methods proposed by the author--recession of internal rectus muscles, and in case of residual deviation--partial resection of external rectus muscles. Symmetrical position was achieved in 107 children and 21 adults; stable binocular vision could be developed only in children (25.2%).