| Clinical Significance of Refixation Time in Intermittent Exotropia. |
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Ho Sun Lee, Helen Lew, Hyun Jung Choi |
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Department of Ophthalmology, Pundang CHA Hospital, Pochun CHA University College of Medicine, Sungnam, Korea. eye@cha.ac.kr |
| 간헐성 외사시 환아에서 정위회복시간의 임상적 의의 |
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이호선 ( Ho Sun Lee ) , 유혜린 ( He Len Lew ) , 최현정 ( Hyun Jung Choi ) |
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| Abstract |
PURPOSE
We compared the clinical significance of refixation time with other visual function tests in the aspect of the operation success rate in the intermittent exotropia patients. METHODS: This study included 40 intermittent exotropia patients who received bilateral lateral rectus muscle recession from August 2001 to March 2002. We evaluated pre-operation corrected vision, deviation angle, axial length, Worth 4 dot test and titmus test. We also checked refixation time for which deviated eye return to orthophoric position. And we observed their progress for at least 6 months. RESULTS: Refixation time was significantly(P<0.05) correlated with deviation angle. Refixation time corrected by deviation angle was defined as corrected refixation time and it was significantly(P<0.05) short in non-amblyopia group, good stereopsis group and fusion group than amblyopia group, poor stereopsis group and non-fusion group. Also it was observed to be short in success group than in failure group(P<0.05). CONCLUSIONS: Because refixation time is relative easy to measure without specific equipment, refixation time should be used in patients who are poorly-cooperated and difficult to measure binocualr function with the degree of strabismus. And it may be considered a factor that affects operation success rate. |
| Key Words:
Binocular function;Intermittent exotropia;Refixation time |
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