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《Capital Food Medicine》 2016-16
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To studybinocular accommodative function in patients with intermittent exotropia

LI Yu;WANG Wei-wei;ZHAN GHai-feng;Department of Ophthalmology,Beijing Huairou Hospital;  
Objective To investigate the binocular accommodative function and the corelationship with development of myopia in patients with IXT.Methods Forty patients aged 8 to 15 years with IXT and 40 normal controls were recruited for a prospective case control study. Accommodative responses MEM and FCC and PRA/NRAwere tested using refractor and MEM. Results The mean accommodative responsein the dominant eyes in patients and normal control group were +0.67±0.39 D, +0.58±0.73 D.The mean accommodative responsein the nondominant eyes in patients and normal control group were +0.71±0.42 D, +0.57±0.72 D.The mean accommodative response in the dominant and nondominant eyes showed an accommodative lag. The accommodative response was symmetric in patientsand normal control group between dominant and nondominant eyes(P=0.33, P=0.81). There was no difference between the dominant eyes in patients and normal controls(t=0.461, P=0.65). The mean accommodative responsein patients with IXT and normal control group were +0.06±0.64 D and +0.51±0.76 D,respectively. There was significant difference between in patients with IXT and normal control group(t=2.45, P =0.02, P 0.05). The mean PRA was +3.55±1.96 D in patients and +2.09±1.10 D in normal controls(t=3.85, P=0.00, P0.05). The mean NRA was +2.61±0.43 D in patients and +2.41±0.55 D in normal controls(t=1.48, P =0.14, P 0.05). Conclusion During binocular viewing at the near target,the accommodative response in childpatients with IXT showed an accommodative lead. Children are likely to develop phoria myopia.
【CateGory Index】: R777.41
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