Objective: To study the changes in accommodative response and microfluctuations in patients with intermittent exotropia (IXT) before and after surgery. Methods: Twenty-nine patients 8-20 years of age with IXT were recruited for a prospective clinical study at Eye Hospital of Wenzhou Medical University from June to August 2017. A Grand Seiko WAM-5500 auto-refractor was used to measure the accommodative response and microfluctuations at 33 cm before and after strabotomy. Data were analyzed using a paired t-test. results: Before surgery, the accommodative response in IXT patients was higher under binocular conditions (dominant eye: 2.23±0.44 D; nondominant eye: 2.44±0.51 D) compared to monocular conditions (2.03±0.40 D; 2.11±0.40 D)(t=2.481, P=0.019; t=2.786, P=0.009). After surgery, the accommodative response under binocular conditions (after surgery: 2.00±0.37 D; 2.11±0.50 D; t=2.628,P=0.014; t=3.120, P=0.004) decreased and accommodative microfluctuations in IXT patients under binocular conditions also decreased (before surgery: 0.22±0.14 D, 0.22±0.12 D; after surgery: 0.16±0.08 D,0.16±0.07 D; t=2.306, P=0.029; t=2.242, P=0.033). conclusions: After surgery, the accommodative ability of IXT patients improves, more stable accommodative microfluctuations and visual performance improved.
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Fan Gao,Jinhua Bao,Fang Zhang,Hao Chen . The Impact of Surgery for Intermittent Exotropia on Accommodative Response and Microfluctuation. Chinese Journal of Optometry Ophthalmology and Visual science, 2018, 20(9): 536-540. DOI: 10.3760/cma.j.issn.1674-845X.2018.09.005
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