Abstract
Purpose: :
To describe the clinical characteristics and surgical outcome of acquired comitant non-accommodative esotropia without obvious cause in children with early onset ≤ three years of age.
Methods: :
24 consecutive patients (13 females) with acquired comitant non-accommodative esotropia underwent strabismus surgery. Outcome measures included amount of deviation and level of binocularity at last follow-up.
Results: :
An acute onset of strabismus was observed in 83% of patients. Accompanying features such as diplopia, covering one eye or stumbling were observed in 40% of the children. Cycloplegic retinoscopy revealed a mild to moderate hypermetropia in all children (mean hypermetropia +2.2 diopters). 90.5% of children were aligned within 8 PD of orthotropia. 81% regained normal stereovision (Lang I/II).
Conclusions: :
All children exhibited the typical features of acute acquired comitant esotropia (AACE) type II (Burian-Franceschetti). Collective characteristics of this form of strabismus are a comitant and relatively large deviation, mild hypermetropia, a potential of normal binocular cooperation and absence of an accommodative component and neurological pathology. Time and suddenness of strabismus onset may be less helpful in defining this entity.
Keywords: strabismus • strabismus: treatment • eye movements