The Results of Anterior Transposition of the Inferior Oblique: Anterior Fibres Sutured to Sclera Versus Bunch-Up Technique

Dissociated strabismus complex (DSC) includes dissociated horizontal, vertical, torsional deviation, latent nystagmus and sub-normal binocularity [1]. It is usually bilateral but asymmetric; may manifest spontaneously or with cover testing. As clinical manifestation, DSC is a comitant drift of both eyes: the fixating eye manifests depression, adduction and intorsion and the nonfixating eye manifests elevation, abduction and extorsion to compensate for the drift of the fixating eye. A reversal of these movements is seen with refixation [2,3]. The upward vertical version is produced mostly by the inferior oblique muscle (IO) of the fixing eye and the superior rectus muscle (SR) of the nonfixing eye [3].