Gonzalez C. Cinciripini G.
Department of Ophthalmology and Visual Science, Yale University School of Medicine,
New Haven, Conn., USA.
Anterior transposition of the inferior oblique in the
treatment of unilateral superior oblique
Journal of Pediatric Ophthalmology & Strabismus. 32(2):107-13, 1995 Mar-Apr.
Anterior transposition of the inferior oblique (ATIO), is an accepted surgical
procedure for the treatment of primary inferior oblique overaction and dissociated
vertical deviation. Our study was undertaken to see if ATIO could be useful in
the treatment of preselected unilateral superior oblique palsy (SOP) patients.
Three consecutive patients with unilateral SOP with preoperative primary-position
hypertropia averaging 27 delta, Knapp class V, underwent ATIO. The results were
excellent and none of these patients developed primary-position hypotropia. Complications
of ATIO in our patients consisted of some elevation deficiency, elevation of the
lower lid in upgaze, and reduced inferior "scleral show" in the surgically
treated eye. We are proposing that ATIO be considered as a beneficial operation
in unilateral SOP patients with at least 25 delta of preoperative primary-position