AIM:To evaluate the outcome of Ahmed glaucoma valve implantation on treating glaucoma secondary to vitrectomy surgeries.

METHODS:Twenty-three eyes in 23 patients from our hospital treated with Ahmed valve implantations for their glaucoma secondary to vitrectomy surgeries were enrolled and their data was retrospectively analyzed.

RESULTS:The average following-up was 29±3.7mo. Before implantations, the mean intraocular pressure(IOP)was 48.79±7.12mmHg. After 24mo of operations the mean IOP was 23.28±10.53mmHg, and there was significant difference compared with that pre-operation(P<0.05). at 1,12 and 24mo after operations, success rate of the implantation was 82.6%, 65.2% and 52.2%, respectively.

CONCLUSION:Ahmed valve implantation is an effective and relatively safe method for the treatment of glaucoma secondary to vitrectomy surgeries.