| BackgroundIntermittent exotropia is a kind of squint between exophoria and constant exotropia. Most commn exotropia in children, about72% in Asia,domestic intermittent exotropia with 87.5% of exotropia.The natural course of intermittent exotropia is unclear, most scholars believe that it is a progressive disease, but there are also some scholars believe that intermittent exotropia will gradually improve over time, or squint Angle is not changed. The main treatment of intermittent exotropia is surgical.non-operative therapy is complementary, Most scholars at home and abroad think that the eye position of intermittent exotropia often changes between the positive position and external oblique, which maintains the opportunity for the development of stereoscopic vision, binocular vision began at 2 years old to 8 years old, but after nine older patients on visual function after training, the specific situation of the binocular visual recovery at home and abroad to study is less, it is not specific, domestic to have different training methods, postoperative adherence is poor, older patients give up training, function can not get effective recovery. Of clinical research on binocular single visual function are mainly concentrated in early detection and intervention before the age of 9. This study collected 930 patients with intermittent exotropia, preoperative and postoperative 3 months after training To observe the eyes of the single visual function recovery effect.MethodsTake 64 patients of intermittent exotropia (34 male,30 female, aged from 9 to 30, average age of 19.5+7.5) who came from the Third Affiliated Hospital of Xinxiang Medical University from 2014 to 2015 as the sample of the study. All patients should take the examination of the regular eye examination of intermittent external oblique, strabismus specialized examination, and DV-100 visual diagnosis examination before they have the operation. After the operation, the patients should be examined again with DV-100 eye and visual examination system.15 days later, they will trained with the DV-100 visual diagnosis system,2 times a day and 20 minutes each time. After 3 months’ training, the patients’ fusion and stereoscopic should be examined with DV-100 visual diagnosis and treatment system to get the data and the distinction of every patient during the operation, after the operation and the 3 months’ training. At the same time, the patients are divided into two groups, one group aging from 9 to 14, and the other aging from 15 to 30, to see the differences between the two groups, and to test the measurement results using t test and X2 test, respectively.Results(1) the average fusion range of that before the operation, after the operation and after 3 months’ training shows, through variance analysis, that there was a statistically significant difference (F=305.3116,P=0.0001 data). Comparing the average fusion range of the chose subjects, we can find:after strabismus surgery, there is no significant difference between the data comparison (P> 0.05); patients who are trained for 3 months have significantly better average range of fusion than those before and after surgical treatment of strabismus, and the data were statistically significant (P< 0.05);(2) Comparing the average fusion range of the 9-14 years old group and the 15-30 years old group, we can find:before and after the surgical treatment of strabismus, there is no statistically significant differences between their data (P> 0.05); after 3 months’ training, patients’ average fusion range significantly improves and the data are statistically significant (P< 0.05);(3) the average fusion range of that before the operation, after the operation and after 3 months’ training shows, through variance analysis, that there was a statistically significant difference (F=9862.784, P=0.0001 data). Comparing the average fusion range of the chose subjects, we can find:after strabismus surgery, there is no significant difference between the data comparison (P> 0.05); patients who are trained for 3 months have significantly better average range of fusion than those before and after surgical treatment of strabismus, and the data were statistically significant (P< 0.05);(4) Comparing the average fusion range of the 9-14 years old group and the 15-30 years old group, we can find:before and after the surgical treatment of strabismus, there is no statistically significant differences between their data (P> 0.05); after 3 months’ training, patients’average fusion range significantly improves and the data are statistically significant (P< 0.05). The group of 9-14 years old have a bigger improvement than the other group of 15-30 years old.Conclusionit will help a lot with the recovery of the binocular fusion and far and near stereopsis recovery of the patients aging from 9 years old to 30 years old by training with DV-100 visual diagnostic system after they have the operation. Other older patients recover less remarkably than the patients mentioned above. Young patients have more vacancy in recovery. |
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