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The Effects of Part-Time Occlusion Therapy Shortened to One or Two Hours in Intermittent Exotropia

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ÀÌ°æÈ£(Lee Kyung-Ho) - °í·Á´ëÇб³ ÀÇ°ú´ëÇÐ ¾È°úÇб³½Ç
¼­¿µ¿ì(Suh Young-Woo) - °í·Á´ëÇб³ ÀÇ°ú´ëÇÐ ¾È°úÇб³½Ç
Á¶À±¾Ö(Cho Yoon-A) - °í·Á´ëÇб³ ÀÇ°ú´ëÇÐ ¾È°úÇб³½Ç

Abstract

¸ñÀû: °£Çæ¿Ü»ç½Ã¿¡¼­ 2½Ã°£ ÀÌÇÏ·Î ´ÜÃàÇÑ ºÎºÐ °¡¸² Ä¡·á ½ÃÇà ÈÄ °¡¸² Ä¡·á ½Ã°£¿¡ µû¸¥ ¼øÀÀµµ¿Í »ç½Ã°¢ÀÇ º¯È­¸¦ ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.

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°á°ú: ´ë»óÀÇ Æò±Õ¿¬·ÉÀº 5.40 ¡¾ 2.42¼¼¿´´Ù. ÃÊÁø ½Ã »ç½Ã°¢Àº 1½Ã°£ °¡¸²±º¿¡¼­ ¿ø°Å¸® 22.61 ¡¾5.78 PD (prism diopters), ±Ù°Å¸® 22.88 ¡¾ 8.11 PD, 2½Ã°£ °¡¸²±º¿¡¼­ ¿ø°Å¸® 26.17 ¡¾ 4.55 PD, ±Ù°Å¸®¿¡¼­ 25.27 ¡¾ 8.54 PD¿´´Ù. °¡¸² Ä¡·á ¼øÀÀµµ°¡ 50% ÀÌ»óÀΠȯ¾ÆÀÇ ºñÀ²Àº 1½Ã°£ °¡¸²±º¿¡¼­ 93.94%, 2½Ã°£ °¡¸²±º 79.69%·Î 1½Ã°£ °¡¸²±º¿¡¼­ ´õ ³ôÀº ¼øÀÀÀ» º¸¿´´Ù(p=0.013). ¼øÀÀµµ°¡ 50% ÀÌ»óÀΠȯ¾ÆµéÀ» ´ë»óÀ¸·Î ÇÏ¿´À» ¶§ µÎ ±º ¸ðµÎ¿¡¼­ 6°³¿ù °¡¸² Ä¡·á ÈÄ ¿ø°Å¸® ¹× ±Ù°Å¸® »ç½Ã°¢ÀÌ ÃÊÁø ½Ã »ç½Ã°¢¿¡ ºñÇØ À¯ÀÇÇÏ°Ô °¨¼ÒÇÏ¿´´Ù(1½Ã°£ °¡¸²±º ¿ø°Å¸® p=0.042, ±Ù°Å¸® p=0.002; 2½Ã°£ °¡¸²±º ¿ø°Å¸® p£¼0.001, ±Ù°Å¸® p£¼0.001). »ç½Ã°¢ °¨¼Ò·®Àº ¿ø, ±Ù°Å¸® ¸ðµÎ µÎ ±º °£¿¡ À¯ÀÇÇÑ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù(ANCOVA; ¿ø°Å¸® p=0.461, ±Ù°Å¸® p=0.761).

°á·Ð: °£Çæ¿Ü»ç½Ã¿¡¼­ 1½Ã°£°ú 2½Ã°£ °¡¸² Ä¡·á´Â »ç½Ã°¢°¨¼Ò¿¡ È¿°úÀûÀ̾úÀ¸¸ç ±× È¿°ú´Â À¯»çÇÏ¿´´Ù. °¡¸²¿¡ ´ëÇÑ ¼øÀÀµµ´Â 1½Ã°£ °¡¸² ±ºÀÌ ³ô¾Æ, ¼øÀÀµµ°¡ ¶³¾îÁ® Àå½Ã°£ÀÇ °¡¸² Ä¡·á°¡ ¾î·Á¿î °æ¿ì 1½Ã°£ÀÇ ÂªÀº °¡¸² Ä¡·áµµ È¿°úÀûÀÎ ¹æ¹ýÀÌ µÉ ¼ö ÀÖÀ» °ÍÀ¸·Î »ý°¢ÇÑ´Ù.
Purpose: To evaluate the compliance level of therapy and the change in exo-angle after 1 or 2 hours of part-time occlusion therapy in intermittent exotropia.

Methods: This retrospective study included 97 patients with intermittent exotropia who were followed-up for more than 6 months after their initial visit. We evaluated the exo-angle and prescribed either 1 hour or 2 hours of part-time occlusion therapy for the fixating eye. After 6 months, the exo-angle was reevaluated and compliance was examined. Patients were divided into 2 groups according to the occlusion therapy time: the 1-hour patching group (33 patients) and the 2-hour patching group (64 patients). Compliance and deviation angle were retrospectively reviewed and compared between the 2 groups. We evaluated the exo-angle of patients with compliance over 50% (1-hour patching group (31 patients), 2-hour patching group (51 patients)).

Results: The mean exo-angles on the first visit were 22.61 ¡¾ 5.78 PD (prism diopters) at distance and 22.88 ¡¾ 8.11 PD at close-range in the 1-hour patching group, and 26.17 ¡¾ 4.55 PD at distance and 25.27 ¡¾ 8.54 PD at close-range in the 2-hour patching group. The proportion of patients with compliance over 50% was higher in the 1-hour patching group (93.94%) than in the 2-hour patching group (79.69%, p = 0.013). There were significant decreases in distant and close- range deviation angles after part-time occlusion in patients with compliance over 50% in both groups (1-hour patching group distant p = 0.042, close-range p = 0.002; 2-hour patching group distant p < 0.001, close-range p < 0.001). The magnitude of deviation angle decrease was not statistically significant between the 2 groups (ANCOVA; distant p = 0.461, near p = 0.761).

Conclusions: One or 2 hours of part-time occlusion therapy in intermittent exotropia provided beneficial effects, including decreasing the deviation angle. The magnitude of deviation angle decrease, however, was not different between the 2 times of therapy. Compliance was higher in the 1-hour part-time occlusion therapy group. Therefore, 1-hour part-time occlusion therapy could be effective in patients with poor cooperation.

Å°¿öµå

Compliance, Intermittent exotropia, Part-time occlusion therapy
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DOI
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ICD 03
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