Dramatic Decrease in Ocular Deviation 1 Day before Surgery in Patients with Intermittent Exotropia
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Purpose: To evaluate the clinical characteristics of patients with intermittent exotropia who exhibited a dramatic decrease inocular deviation 1 day before surgery. Methods: This study retrospectively enrolled patients with intermittent exotropia who underwent surgery between December2013 and December 2019. Those who exhibited a decrease in ocular alignment ≥10 prism diopters (PD) at the last examination(1 day before surgery) compared with the largest previous angle of deviation were included. A monocular occlusiontest was performed to re-confirm the largest angle of ocular deviation. Results: Among 547 patients with intermittent exotropia, 10 (six females; mean age, 8.6 years) exhibited a dramatic decreasein ocular deviation before impending surgery. The mean largest angle of deviation was 31.0 PD (range, 20 to 50 PD)at distance and 34.5 PD (range, 20 to 55 PD) at near. The mean control scores using the LACTOSE (Look and Cover then TenSeconds of Observation Scale for Exotropia) scoring system were 2.5 at distance, 1.8 at near, and 4.3 when combined. Meanocular deviation prior to the impending surgery decreased to 7.4 PD (range, 0 to 10 PD) at distance and 6.2 PD (range, -10 to10 PD) at near. The largest angle of ocular deviation was re-confirmed using the monocular occlusion test in all patients. Allpatients underwent surgery as planned, and none exhibited postoperative overcorrection. Conclusions: A relatively small number of patients with intermittent exotropia exhibited a dramatic decrease in ocular alignment1 day before surgery but demonstrated a relatively better level of control. The monocular occlusion test was helpful inre-confirming the largest angle of ocular deviation.
Abstract
Purpose: To evaluate the clinical characteristics of patients with intermittent exotropia who exhibited a dramatic decrease inocular deviation 1 day before surgery. Methods: This study retrospectively enrolled patients with intermittent exotropia who underwent surgery between December2013 and December 2019. Those who exhibited a decrease in ocular alignment ≥10 prism diopters (PD) at the last examination(1 day before surgery) compared with the largest previous angle of deviation were included. A monocular occlusiontest was performed to re-confirm the largest angle of ocular deviation. Results: Among 547 patients with intermittent exotropia, 10 (six females; mean age, 8.6 years) exhibited a dramatic decreasein ocular deviation before impending surgery. The mean largest angle of deviation was 31.0 PD (range, 20 to 50 PD)at distance and 34.5 PD (range, 20 to 55 PD) at near. The mean control scores using the LACTOSE (Look and Cover then TenSeconds of Observation Scale for Exotropia) scoring system were 2.5 at distance, 1.8 at near, and 4.3 when combined. Meanocular deviation prior to the impending surgery decreased to 7.4 PD (range, 0 to 10 PD) at distance and 6.2 PD (range, -10 to10 PD) at near. The largest angle of ocular deviation was re-confirmed using the monocular occlusion test in all patients. Allpatients underwent surgery as planned, and none exhibited postoperative overcorrection. Conclusions: A relatively small number of patients with intermittent exotropia exhibited a dramatic decrease in ocular alignment1 day before surgery but demonstrated a relatively better level of control. The monocular occlusion test was helpful inre-confirming the largest angle of ocular deviation.
참고문헌 (14)
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