Surgical outcomes of intermittent exotropia as a function of strabismic angle.
OBJECTIVE
To analyze postoperative results of intermittent exotropia as a function of the difference in strabismic angles measured immediately and another time prior to the surgery.


METHODS
We reviewed the clinical records of intermittent exotropia patients who received surgery and had differences greater than or equal to 10 prism diopters (PD) between the last preoperative measurement of strabismic angle and another previous measurement. After applying various exclusion criteria, 66 patients were entered into our study. At the last follow-up visit after surgery, we divided postoperative results into 3 categories: (1) poor; with greater than 10 PD of esotropia or angle of exodeviation of 20 PD or more (2) moderate; with 6-10 PD of esophoria/tropia or 10-19 PD exodeviation, or (3) good; with 1-5 PD of esophoria /tropia or an angle of exodeviation less than 10 PD, or orthophoria.


RESULTS
Good results were higher in patients where the difference in strabismic angle was 10 PD or greater between the last measurement and any other earlier measurement.


CONCLUSIONS
In cases of Intermittent exotropia where the last preoperative value of strabismic angle was greater than any previous preoperative measurement, surgical dosage based on the last preoperative measurement yielded better results.
Son
Jun-Hyuk
JH
Department of Ophthalmology, Yeungnam University College of Medicine, Daegu, Korea.
Huh
Yun-Sung
YS
Kim
Myung-Mi
MM
D002675:Child, Preschool; D005099:Exotropia / Q000503:physiopathology / Q000601:surgery*; D005133:Eye Movements / Q000502:physiology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D008297:Male; D009801:Oculomotor Muscles / Q000503:physiopathology* / Q000601:surgery; D013508:Ophthalmologic Surgical Procedures / Q000379:methods*; D012189:Retrospective Studies; D012720:Severity of Illness Index; D016896:Treatment Outcome