Myopic Progression and Postoperative Exodrift in Patients with Intermittent Exotropia

PURPOSE: To investigate the relationship between myopic progression and exodrift after surgery in patients with intermittent exotropia (X[T]). METHODS: One hundred eighteen patients who underwent bilateral lateral rectus recession for X(T) and had a follow-up of more than 1 year were recruited. Progression of myopia was determined by measuring the difference in spherical equivalent of both eyes between the initial and final refraction divided by the total follow-up time per patient. Postoperative exodrift was calculated by subtracting the deviation at postoperative 6 weeks from the deviation at the last follow-up, and the deviation at postoperative day 1 from the deviation at postoperative 6 weeks. Linear regression was conducted to determine the relationship between postoperative exodrift and myopic progression. The risk factors for recurrence, defined as exodeviation of 10 prism diopters or more at the final examination, were also analyzed. RESULTS: Sixty-eight (57.6%) subjects showed myopic progression of -0.50 diopters or more, and 53 (44.9%) had recurrence of exotropia during the mean follow-up period of 37.9 months. Patients with myopic progression showed more exotropic drift after surgery than the patients without myopic progression (P<0.001). Immediate postoperative overcorrection, oblique dysfunction, and a short follow-up period were associated with a low recurrence, whereas preoperative angle of exodeviation, sensory status, and age at the time of surgery were not. CONCLUSION: In patients who underwent bilateral lateral rectus recession for X(T), a greater myopic progression was related with greater postoperative exodrift. As the development of myopia was observed to be axial in nature, the results from the present study raises the possibility that ocular elongation may reduce the effect of recession.

Author dc:creator

• 김, 민호

Contributors dc:contributor

• 국, 경훈
• 대학원 의학과
• 201124109

• 양안 외직근후전술
• 외편위 재발
• 간헐외사시
• 근시 진행
• 안축길이 증가
• Bilateral lateral rectus muscle recession
• Exodrift
• Intermittent exotropia
• Myopic progression
• Ocular elongation

Language dc:language

ko

Identifier

http://dcoll.ajou.ac.kr:9080/dcollection/jsp/common/DcLoOrgPer.jsp?sItemId=000000013375
000000013375

OAI identifier oai:identifier

oai:repository.ajou.ac.kr:201003/8615