末梢性顔面神経麻痺と流涙テスト

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Shirmer's test is widely accepted for determining the lacrimal function because of its ease of handling. However, it is not used for clinically testing the facial nerve function, for it is time-consuming and its result is not consistent. Kurihashi, in 1975, reported a new thread lacrimation test. A piece of cotton thread dyed with 10% fluorescin at one end, is inserted into and left under the lateral side of the formix for 60 seconds. The color of fluorescin stretches due to lacrimation.We examined and evaluated the degree of facial paralysis with the above-mentioned thread lacrimation test, the paralysis score method and the integrated EMG method in 34 cases of peripheral facial paralysis. In the process of recovery from facial paralysis, we found three patterns of recovery in the thread lacrimatiom test: normal type, hyperfunction type and hypofunction type. The value of the normal type (29.4%) fell in the normal range (60-140%) throughout the recovery process. The hyperfunction type (55.9%) showed high values (over 140%) before or during the recovery course. The hypofunction type (8.8%) showed low values (under 60%) in the initial phase of paralysis.We found no definite relation between the lacrimation test results and the recovery of facial paralysis as examined with the paralysis score method or the integrated EMG method. However, so much as 55.9% of facial paralysis had transient hyperlacrimation before or during the recovery course of facial paralysis, it seems that hyperlacrimation has some relation to the recovery from facial nerve damage.
耳鼻咽喉科臨床学会の論文

末梢性顔面神経麻痺と流涙テスト

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