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Efficacy of intravitreal conbercept combined with panretinal photocoagulation for severe nonproliferative diabetic retinopathy without macular edema.

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AIM To assess efficacy of intravitreal conbercept (IVC) injection in combination with panretinal photocoagulation (PRP) vs PRP alone in patients with severe nonproliferative diabetic retinopathy (SNPDR) without macular edema (ME).… Click to show full abstract

AIM To assess efficacy of intravitreal conbercept (IVC) injection in combination with panretinal photocoagulation (PRP) vs PRP alone in patients with severe nonproliferative diabetic retinopathy (SNPDR) without macular edema (ME). METHODS Forty-eight patients with SNPDR without ME (56 eyes) were divided into the PRP group and IVC+PRP group (the pulse group) in this retrospective clinical study. Conbercept was intravitreally administered to patients in the pulse group 1wk before treatment with PRP and followed up for 1, 3, and 6mo. The best-corrected visual acuity (BCVA, logMAR), center foveal thickness (CFT), visual acuity (VA) improvement, and adverse reactions were compared between groups. RESULTS In the PRP group, the BCVA reduced at 1 and 3mo before improving at 6mo. In the pulse group, baseline BCVA decreased continuously at 1mo, increased at 3 and 6mo. BCVA in the pulse group was better than that in the PRP group at 1, 3, and 6mo. There was an increase in CFT in the PRP group during follow-up compared with baseline. In the pulse group, CFT was increased at 1mo relative to baseline, steadily decreased to the baseline level at 3 and 6mo. There was a more significant reduction in CFT in the pulse group during follow-up compared with the PRP group. The effective rates of VA in the PRP and the pulse groups were 81.48% and 100%, respectively. CONCLUSION As PRP pretreatment, a single dose of IVC administration has beneficial effects for preventing PRP-induced foveal thickening and increasing VA in patients with SNPDR without ME.

Keywords: pulse group; prp; group; efficacy intravitreal; intravitreal conbercept; prp group

Journal Title: International journal of ophthalmology
Year Published: 2022

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