Journal of the Korean Ophthalmological Society 1988;29(4):625-629.
Published online April 1, 1988.
The Quantitative Measurement of the Oculocardiac Reflex.
Byung Moo Min, Woo Chan Park, Chang Sik Kim
Department of Ophthalmology, College of Medicine, Chungnam National University, Korea.
안구심반사의 정량적 측정
민병무(Byung Moo Min),박우찬(Woo Chan Park),김창식(Chang Sik Kim)
Abstract
The oculocardiac reflex was quantitatively measured in 58 patients with strabismus. The reflex was observed in some patients when the medial rectus, lateral rectus, and inferior oblique were stretched, and resultant oculocardiac reflex was analysed in quantitative manner. The results were as follows. 1. The positive oculocardiac reflex, more than 10% of heart rate decrement or arrythmia, was observed in 43.1% of tracted medial rectus muscles, 40.0% of inferior oblique muscles, and 28.0% of lateral recturs muscles. 2. The incidence of the oculocardiac reflex was increased with increasing the traction force. 3. The threshold of the oculocardiac reflex was varied from 50 to 450 gm in the medial rectus, 150 to 500 gm in the lateral rectus, and 100 to 400 gm in the inferior oblique muscles. 4. The depth of the bradicardia was 17.0% in the medial rectus, 5.9% in the lateral rectus, and 9.8% in the inferior oblique muscles by the 100 gm unit of the traction forces.


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