J Korean Ophthalmol Soc > Volume 53(1); 2012 > Article
Journal of the Korean Ophthalmological Society 2012;53(1):127-132.
DOI: https://doi.org/10.3341/jkos.2012.53.1.127    Published online January 15, 2012.
The Changes in the Cornea and Anterior Chamber after Lateral Rectus Muscle Recession in Intermittent Extropia.
Boyun Kim, Shin Hae Park, Sun Young Shin
Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea. eyeshin@ca(R)tholic.ac.kr
간헐외사시의 외직근 후전술 후 Pentacam을 이용한 각막 및 앞방의 변화
김보윤⋅박신혜⋅신선영
Department of Ophthalmology and Visual Science, Seoul St. Mary’s Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
Abstract
PURPOSE
To investigate changes in corneal keratometry and the anterior chamber in intermittent exotropia after lateral rectus recession using Pentacam. METHODS: Corneal keratometry, anterior chamber depth, and anterior chamber volumes were evaluated preoperatively and at 1 week, 1 month, and 2 months postoperatively using Pentacam in 20 patients (40 eyes) who underwent lateral rectus muscle recession. The IOP was measured before and after lateral rectus muscle detachment during the surgery. According to the change in IOP, the patients were divided into 2 groups; Group 1 (DeltaIOP < 3 mm Hg) and Group 2 (DeltaIOP > or = 3 mm Hg), and the results of the 2 groups were compared. RESULTS: The horizontal keratometry and anterior chamber volumes significantly decreased 1 week postoperatively, although there were no significant differences in vertical keratometry, mean keratometry, or anterior chamber depth. Additionally, there were no significant changes in any measurement parameters at 1 month or 2 months postoperatively. In Group 2, horizontal keratometry, mean keratometry, and anterior chamber volumes showed significant reduction compared with those in Group 1. There were no significant differences between the 2 groups at 1 month postoperatively. CONCLUSIONS: Postoperative corneal keratometry and anterior chamber volumes did not change significantly compared to preoperative values in intermittent exotropia after performing lateral rectus muscle recession. However, the higher the ocular muscle tension, the greater were the changes in corneal astigmatism and anterior volumes.
Key Words: Anterior chamber volume;Corneal keratometry;Lateral rectus muscle recession;Pentacam


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