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45 ÇÁ¸®Áòµð¿ÉÅÍ ÀÌ»óÀÇ ÆíÀ§°¢À» Áö´Ñ ¿Ü»ç½Ã¿¡¼­ µÎ ±ÙÀ°°ú ¼¼ ±ÙÀ° ¼ö¼ú¹ýÀÇ ºñ±³ Comparison of the Outcomes of Two- and Three-muscle Surgery in Exotropia over 45 Prism Diopters

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°­°æÀº, ±èÇüÂù, ½ÅÇöÁø,
¼Ò¼Ó »ó¼¼Á¤º¸
°­°æÀº ( Kang Kyung-Eun ) 
°Ç±¹´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø ¾È°úÇб³½Ç

±èÇüÂù ( Kim Hyung-Chan ) 
°Ç±¹´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø ¾È°úÇб³½Ç
½ÅÇöÁø ( Shin Hyun-Jin ) 
°Ç±¹´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø ¾È°úÇб³½Ç

Abstract

¸ñÀû: 45 ÇÁ¸®Áòµð¿ÉÅÍ(prism diopters, PD) ÀÌ»óÀÇ ¿Ü»ç½Ã¿¡¼­ µÎ ±ÙÀ° ¶Ç´Â ¼¼ ±ÙÀ° ¼ö¼úÀ» ½ÃÇà¹ÞÀº ±ºÀÇ ¼ö¼ú Àü ÆíÀ§°¢¿¡ µû¸¥ ¼ö¼ú È¿°ú¸¦ ºñ±³ÇÏ°íÀÚ ÇÏ¿´´Ù.

´ë»ó°ú ¹æ¹ý: °Ç±¹´ëÇб³º´¿ø ¾È°ú¿¡¼­ 45 PD ÀÌ»óÀÇ ¿Ü»ç½Ã·Î µÎ ±ÙÀ° ¶Ç´Â ¼¼ ±ÙÀ° ¼ö¼úÀ» ½ÃÇà¹ÞÀº ȯÀÚ Áß 45¸íÀ» ´ë»óÀ¸·Î ¼ú ÈÄ »ç½Ã°¢ÀÇ ¼º°ø·üÀ» ÈÄÇâÀûÀ¸·Î »ìÆ캸¾Ò´Ù. ¼ö¼ú ¼º°øÀº ¡Â5 PDÀÇ ³»ÆíÀ§ ¹× ¡Â10 PD ¿ÜÆíÀ§·Î Á¤ÇÏ¿´´Ù.

°á°ú: ÃÑ 45¸íÀÇ È¯ÀÚ Áß µÎ ±ÙÀ° ¼ö¼úÀÌ 22¸í, ¼¼ ±ÙÀ° ¼ö¼úÀÌ 23¸íÀ̾ú´Ù. ¼ö¼ú Àüü ¼º°ø·üÀº µÎ ±ÙÀ° ¼ö¼úÀº 54.55% (12/22¸í), ¼¼ ±ÙÀ° ¼ö¼úÀº 91.30% (21/23¸í)¿´´Ù. µÎ ±ÙÀ° ¼ö¼úÀÇ °æ¿ì 45-55 PD±º¿¡¼­ 66.67% (12/18¸í), 55 PD ÀÌ»ó ±º¿¡¼­ 0% (0/4¸í), ¼¼ ±ÙÀ° ¼ö¼úÀÇ °æ¿ì 45-55 PD±º¿¡¼­ 100% (7/7¸í), 55 PD ÀÌ»ó ±º¿¡¼­ 87.50% (14/16¸í)ÀÇ ¼º°ø·üÀ» º¸¿´´Ù. 45-55 PD±º¿¡¼­ ½ÃÇàÇÑ µÎ ±ÙÀ°°ú ¼¼ ±ÙÀ° ¼ö¼ú ÈÄ ¼º°ø·ü¿¡´Â À¯ÀÇÇÑ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾ÒÀ¸³ª(p=0.137), 55 PD ÀÌ»ó ±º¿¡¼­´Â À¯ÀÇÇÑ Â÷À̸¦ º¸¿´´Ù(p=0.003).

°á·Ð: º» ¿¬±¸ °á°ú·Î ¹Ì·ç¾î º¸¸é 55 PD ÀÌ»óÀÇ ¿Ü»ç½ÃÀÇ °æ¿ì¿¡´Â µÎ ±ÙÀ° ¼ö¼ú¸¸À¸·Î´Â ¼ö¼ú ¼º°ø·üÀÌ °¨¼ÒÇÏ¿© ¸¸Á·ÇÒ ¸¸ÇÑ °á°ú¸¦ ¾ò±â¿¡ ºÎÁ·ÇÑ °ÍÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. µû¶ó¼­ »ç½Ã°¢ÀÌ Å« ¿Ü»ç½ÃÀÇ °æ¿ì ¼¼ ±ÙÀ° ¼ö¼úÀ» ÀÌ¿ëÇÑ ¼ú½ÄÀ» ÅëÇØ ÁÁÀº °á°ú¸¦ ±â´ëÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î º¸ÀδÙ.

Purpose: We report the outcomes of two- or three-muscle surgery on patients with large-angle exotropia exceeding 45 prism diopters (PDs).

Methods: We retrospectively analyzed data on 45 exotropia patients (> 45 PDs) who underwent two- or three-muscle surgery. We excluded patients with paralytic or restrictive strabismus, A- or V-pattern strabismus, a coexistent oblique dysfunction or nystagmus, and/or a history of prior extraocular muscle surgery. Only patients for whom at least 6 months of follow-up data were available were included. Successful surgery was defined as postoperative esotropia ¡Â 5 PD, orthophoria, and exotropia ¡Â 10 PD at the last visit.

Results: We included 45 patients, of whom 22 and 23 underwent two- and three-muscle surgery, respectively. The mean postoperative deviations were 9.5 and 2.7 PD in the two- and three-muscle groups, respectively; the overall success rates were 54.55% (12/22) and 91.30% (21/23). Subgroup analyses revealed that the surgical success rate of two-muscle operations was 66.67% (12/18) in 45-55 PD patients and 0% (0/4) in ¡Ã 55 PD patients; the success rates of three-muscle operations were 100% (7/7) and 87.50% (14/16). The success rate did not differ significantly between those with postoperative deviations of 45-55 PD (p = 0.137), but did between those who underwent two- and three-muscle operations to treat postoperative deviations of ¡Ã 55 PD (p = 0.003).

Conclusions: Satisfactory results can be achieved via two-muscle surgery in patients with exotropia < 55 PD. However, for those with exotropia > 55 PD, three-muscle surgery is superior to two-muscle surgery. Therefore, large-angle exotropia is optimally treated via three-muscle surgery.

Å°¿öµå

Horizontal muscle surgery; Large angle exotropia; Strabismus muscle

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