Clinical analysis on surgical treatments of Helveston syndrome / 国际眼科杂志(Guoji Yanke Zazhi)

·AIM: To investigate single step combined surgical treatments of Helveston syndrome. ·METHODS: A retrospective clinical analysis of 7 cases (14 eyes) with Helveston syndrome in our hospital. There were 14 eyes underwent single step combined surgical treatments, according to the degree of patients with superior oblique overaction and strabismus. A-pattern, dissociated vertical deviation (DVD), function of superior oblique and binocular visual function were examined and analyzed preoperatively and postoperatively. · RESULTS: Bilateral superior oblique intrathecal tenectomy combined bilateral rectus recession were performed in 3 cases (6 eyes). Bilateral superior oblique tenectomy combined unilateral rectus recession were performed in 4 cases (4 eyes). The follow-up was 6mo;14 eyes of 7 patients attained normal ocular alignment. A-pattern and DVD disappeared. Binocular vision and stereoscopic vision were recovered in 6 eyes of 3 children. ·CONCLUSION: Helveston syndrome can be treated with single step combined surgery, and early surgical treatments can help the recovery of binocular visual function.

Surgical treatment methods for Helveston syndrome / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To investigate the surgical methods of Helveston syndrome. METHODS: Fifteen cases ( 30 eyes ) with Helveston syndrome were studied. Surgical method was selected according to the degree of superior oblique muscle overaction and dissociated vertical deviation (DVD). RESULTS: Binocular superior oblique intrathecal tenectomy was performed in 8 patients (16 eyes). Follow-up period after surgery was 1-3a. Those 8 patients got A-sign correction, of which 3 patients (6 eyes) got DVD vanished and 5 patients (10 eyes) got DVD alleviation. None of the 8 cases needed another operation for DVD. Binocular superior rectus recession and binocular lateral rectus recession with vertical offsets was performed in 4 patients (8 eyes). Follow-up period after surgery was 1-3a. The 4 patients got A sign correction and with orthophoria, of which 1 patient ( 2 eyes ) got DVD vanished and 3 patients ( 6 eyes) got DVD alleviation. None of the 4 cases needed another operation for DVD. Binocular lateral rectus recession and vertical offsets was performed in 3 patients (6 eyes). Follow-up period after surgery was half a year, with orthophoria, no A sign, DVD weakened, and no second operation was needed. CONCLUSION: Surgical procedures for Helveston syndrome can be selected according to the degree of superior oblique muscle overaction and DVD.

Surgical treatment of Helveston syndrome: two cases report / 国际眼科杂志(Guoji Yanke Zazhi)

·AIM: To report two patients with Helveston syndrome who received surgical treatment.·METHODS: During last year in department of oph-thalmology in West China Hospital, the surgery was designed to correct A-exotropia by lateral rectus' weaken and vertical offsets, and dissociated vertical deviation (DVD) by superior rectus muscles recession simultaneously.·RESULTS: A-exotropia and DVD of the patients vanished six months after the surgery. Both patients were clinically cured.·CONCLUSION: As the degree of horizontal and vertical strabismus was in the allowed range, complete examination and full assessment of the function of the four muscles were performed before operation, single operation can be considered in the treatment of Helveston syndrome.