ABSTRACT
During conventional rectus muscle surgery, anterior ciliary arteries are not preserved, since anterior segment ischemia (ASI) does not occur in healthy subjects with routine horizontal rectus muscle surgery (Olver & Lee 1989, Lee & Olver 1990). However, some hemodynamic changes may be seen in retrobulbar circulation due to the increased blood flow need of the anterior segment circulation. Especially combined vertical and horizontal rectus muscle surgeries, have higher risk for development of ASI (Olver & Lee 1989, Lee & Olver 1990, France & Simon 1986, Olver & Lee 1992). Imaging methods may help to understand the pathophysiology of the ASI. The purpose of this study was to evaluate the effect of strabismus surgery on retrobulbar hemodynamics with Doppler ultrasonography as a non-invasive imaging method.
