A Clinical Evaluation Of The Long-term Position Of Eye And Its Correlation Analysis Of Influencing Factors On Intermittent Exotropia Surgery

Objective:To evaluate the efficacy of intermittent exotropia surgery.Inpatients with intermittent exotropia surgery eye the influence factors of theregression correlation analysis.Methods: These were clinical patients with intermittent exotropia whohad received their surgery in the ophthalmology department in the secondhospital hebei medical university since2012-12to2012-12, strabismic angle>15prism diopters (PD), voluntarily accept of surgical treatment. Accordingto preoperative measurement of strabismic angle to design surgery, allpatients were treated by lateral rectus recession in the non-dominant eye orrecession and resection,and who had a large strabismic angle woud be addedto the third muscle. Patients were separated according to onset age, surgeryage, type of strabismus, oblique Angle, stereoscopic vision, refractive status,the first day’s eye position after operation, the first week’s eye position afteroperation, anesthesia, surgical procedure, family history. Check: binocularvision, corneal reflection light method combining prism neutralization checkview distance and near Angle, up and down at25degrees depending on the farAngle, refractive check, eye movement, stereopsis, check of synoptophore,fundus color, ocular axial length. Optometry Binocular Vision≥0.8，allpatients accept cover monocular check prism degree is more than an hour andat least15PD.Results：This study, a total of65patients with intermittent exotropia,38males and27females (41.5%), an average age of17.8±10.2years.17peoplewere8years or less older, and the other48people older than8.The onset of them aged from0to28years old, with the trend of two peaks,3~5years oldfor the first peak, a total of15people,13to15for the second peak, a total of11people. Preoperative21people had no stereopsis(32.3%), at the same time32people had simultaneous vision,33people had not.8people had a familyhistory, accounting for12.3%,39patients had basic intermittent exotropia,0patients had divergence excess intermittent exotropia, and26patients hadconvergence insufficiency intermittent exotropia. On postoperative day one,ofthe65subjects,57had successful surgical outcomes and6had recurrences,whereas overcorrection was2. The first week of the65subjects,59hadsuccessful surgical outcomes and9had recurrences, whereas overcorrectionwas not found. Of65records reviewed, the records of52patients’s timebetween the first and last recorded visits ranged from3to13months.The lastvist22had successful surgical outcomes and30had recurrences, whereasovercorrection was no found.1Of the52objects, the last vist22had successful surgical outcomes and30had recurrences, whereas overcorrection was no found，46patients wereeffective(88.5%).including the decline of6stereoscopic purely. And that8clients fail to improve postoperative near stereoscopic with no prompt to drop,because there were no near stereopsis in the preoperative. The rest of the38individuals (73.1%) in postoperative near stereoscopic all have differentdegrees of improvement.2After the statistical analysis, there are different degrees of postoperativeeye back in52patients. And the fallback quantity is about7.65+/-6.82(P=0.000)。3According to the existence of preoperative stereoscopic, they aredivided into two groups. Compare the forward the eye is a rate, and found thatthe two are statistically significant, P=0.003. There are14individuals withnormotopia in20Preoperative clients with no stereopsis, and the stereoscopicpeople is32, only8(25%) of them are normotopic, therefore the Postoperativeforward is a rat of the preoperative patients without stereopsis is higher thanwith that.The mean amount of eye back in the first is4.650,and the second is9.531.Therefore there are differences eye back quantity comparing twogroups. The P value is0.010. In a word, there is smaller eye backquantity from the patients in the group without stereopsis.The two resultare in agreement.4In accordance with strabismus type, allow52clients to divide into twosets. One is the basic including23people, the other set is the lack of collectiontype which is19people. The mean amount of eye back in the first is5.406,and the second is11.250. Therefore there are differences eye back quantitycomparing two groups of different types from intermittent exotropiapostoperative patients The P value is0.002. In a word, there are larger eyeback quantity from the patients in the group of the Lack of collection type.5At the first visit after surgery, we divided postoperative results into2categories, patients with poor than exodeviation of1~14PD and withesophoria of1-10PD. The mean amount of eye back in the first is11.444, andthe second is5.143.Therefore there are differences eye back quantitycomparing two groups of different positions of intermittent exotropiapostoperative patients, t=3.225，P=0.002, there are larger eye back quantityfrom the patients in the group of esophoria of1-10PD.Conclusions：1There was improvement in position and stereoacuity in patients whounderwent surgery for intermittent exotropia.2We fined that there were linear relationship between the firstpostoperative day eye and postoperative long-term eye falback, for patientswith excessive correction forward back quantity is larger.3Compared in the two types of strabismus，patients had convergenceinsufficiency had a higher return of dosage after surgrey than basicintermittent exotropia.4Therefore，patients had no preoperative stereoscopic vision achieverelatively good final ocular alignment. Patients had no preoperativestereoscopic had a lower return of dosage after surgrey.5The final post operative ocular alignment would not be inflenced by a single factor.