AIM: To observe the efficacy of 25G+ vitrectomy surgery for malignant glaucoma after cataract surgery.

METHODS: Totally 18 eyes of 18 patients with malignant glaucoma after cataract surgery were analyzed retrospectively from January 2013 to June 2016. The visual acuity was between hand moving to 0.5 before surgery, the intraocular pressure was between 18.3-56.8mmHg before surgery, an average of 35.21±10.43mmHg. The length eye axis was between 19.60-22.46mm, an average of 20.63±0.48mm. The depth of anterior chamber was between 0.98-1.86mm, an average of 1.31±0.22mm. All the patients were performed with 25G+ vitrectomy. The visual acuity, anterior chamber and intraocular pressure were studied after treatment.

RESULTS: The patients were followed up for 6-18mo with an average of 9mo. BCVA at the last follow up improved to 0.2-0.8, and there was significant difference compared to that before operation(P<0.01). IOP was from 12.3-19.8mmHg, an average of 16.05±2.46mmHg, there was significant difference compared to that before operation(t=7.59, P<0.01). The depth of anterior chamber was between 1.89-3.49mm, an average of 2.42±0.47mm, there was significant difference compared to that before operation(t=9.07, P<0.01). Only one case had IOP of 8mmHg, after treatment the IOP was 15mmHg. No complications such as corneal endothelium decompensation, intraocular lens(IOL)capture, intraocular hemorrhage, infection and uncontrolled IOP were observed.

CONCLUSION: The 25G+ vitrectomy is safe and effective for treating malignant glaucoma, controls IOP and reduces complications compared with traditional vitrectomy.