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목적 : To compare the efficacy of double Maddox rod test (DMRT) with different colour combinations of Maddox rods to localize the paretic eye in patients with unilateral superior oblique muscle palsy.
방법 : DMRT was performed in 61 patients with unilateral superior oblique muscle palsy in three different methods in a dark room. Each patient was tested placing a red Maddox rod in front of the paretic eye and a white Maddox rod in front of the non-paretic eye in a trial frame, and then the test was repeated with Maddox rods reversed. Finally the patient was tested with the same red colour Maddox rods in front of both eyes.
결과 : Fifty six (92%) of 61 patients reported subjective extorsion of the paretic eye under the all three different colour combinations of DMRT irrespective of the position of red Maddox rod. The proportion of patients who localized the extorsion in paretic eye was not different among three methods of DMRT (p=0.553, Repeated measurement analysis). The average amount of extorsion was not different among three methods of DMRT (p=0.456).
결론 : We did not find any significant differences in the localization and the magnitude of extorsion with DMRT of different colour combinations of Maddox rod in the dark room. It is permissible to place the red Maddox rod in either eye or to put the same red colour Maddox rods in front of both eyes in DMRT.
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