摘要
下斜肌功能过强(Inferior ObliqueOveraction,简称IOOA),由de Schw-einitz(1921)首先提出。Parks1974)较为详细地描述了这一特殊类型的斜视,并将其分为原发性(PIOOA)和继发性(SIOOA)两种类型。我们在防治儿童斜视弱视工作中,发现PIOOA并不少见。本文报告216(334只眼)PIOOA病例。
This paper reports 216 cases (334 eyes) with primary inferior oblqiueoveraction (PIOOA). The results show that PIOOA has three maincharacteristics as follows (1) It is not uncommon among patients with strabismus and amblyopia; (2) it might be bilateral or unilaterl and occurs-early, mostly in infants (P80=4.8 years); (3) It arises more of tenfrom hyperopic erros of refraction and esotropia than from myopic errorsof refraction, emmetropia and exotropia. It also appears more severe inthe former two conditions than in the rest three and the differences arestatistically significant (P<0.001 and P<0.05). According to the above characteristics, We put forward the hypothesisof pathogenesis for PIOOA, namely, the theory of adduction position ofeye-PIOOA. Clinical appearances, diagnosis, differential diagnosis andtreatment principles of PIOOA and some other questions are also prelimi-narily discussed in this paper.
