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T. Kono, Y. Takesue, T. Yamanaka, S. Shiga; Long-Term Surgical Results for Neovascular Glaucoma Due to Proliferative Diabetic Retinopathy. Invest. Ophthalmol. Vis. Sci. 2007;48(13):1397.
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To examine the surgical results of vitrectomy combined with several filtering surgeries for neovascular glaucoma related to proliferative diabetic retinopathy (PDR).
We have performed vitrectomy combined with pars plana filtering surgery and trabeculectomy for neovascular glaucoma due to PDR on 39 eyes (32 cases) at Fukuoka University Chikushi Hospital from January 1995 to December 2005. There were 23 eyes of 18 males and 16 eyes of 14 females. Their ages at the time of surgery ranged from 25 to 75 years, average 53.2 years. Follow-up periods ranged from 12 months to 10 years and 9 months. Twenty-six eyes had neovascular glaucoma with PDR and 13 eyes had neovascular glaucoma after vitrectomy for PDR. Vitrectomy had been performed in combination with pars plana filtering surgery and/or trabeculectomy depends on the anterior segment neovascularization. We defined surgical success as the ocular pressure of less than 24 mmHg, and as visual acuities of more than hand motion.
The number of surgeries was 1 to 6 times (average 2.3 times). The surgical success was 33 eyes of 39 (74.6%) at the final examination. The final visual acuity was more than 0.5 in 14 eyes, 0.1 to 0.4 in 14 eyes, less than 0.09 in 6 eyes. Five eyes had no light perception because of high intraocular pressures.
Vitrectomy combined with several filtering surgeries is very useful and effective as treatment of neovascular glaucoma due to proliferative diabetic retinopathy. We could preserve practical visual function in many cases for a long period.
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