Histologic Study for Effect of Experimental Hematoma on Extraocular Muscle.

Roh, Young Bae; Jung, Do Young; Oum, Boo Sup

Original Article

Journal of the Korean Ophthalmological Society 1998;39(8):1864-1867.
Published online August 1, 1998.

Histologic Study for Effect of Experimental Hematoma on Extraocular Muscle.

Young Bae Roh, Do Young Jung, Boo Sup Oum

Department of Ophthalmology, College of Medicine, Pusan National University, Pusan, Korea.

실험적 혈종이 외안근에 미치는 영향에 대한 조직학적 연구

노영배(Young Bae Roh),정도영(Do Young Jung),엄부섭(Boo Sup Oum)

Abstract

This study was performed to evaluate the effect of hematoma which often occurred during the strabismus surgery on the extraocular muscles. We created focal hematomas around the superior rectus mascles of three dogs by rupture of the anterior ciliary artery. One, two and four weeks after formation of the hematoma respectively, we resected the superior rectus muscles 7mm in length at the site of previous hematoma and histopathologic examination with a light microscope was performed. We could not find any specific pathologic change in the muscular fiber in one week after surgery. But, focal degeneration of the muscle fiber was found in that of two weeks and diffuse degeneration in that of four weeks after surgery. However, any fibrotic lesion was not found. The muscle degeneration may be caused by the pressure of hematoma and ischemia due to small arterial occlusion.

Key Words: Extraocular muscle;Hematoma;Histopathology;Surgery