A 62-year-old diabetic patient presents with neovascularization of the disc (NVD) covering more than one-third of the disc area. According to the Early Treatment Diabetic Retinopathy Study (ETDRS), what is the most appropriate next step?
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A
Observation with follow-up in 3 months
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B
Intravitreal anti-VEGF monotherapy
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C
Prompt panretinal photocoagulation
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D
Pars plana vitrectomy