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Phacoemulsification Combined With Intravitreal Injection of Ranibizumab Prevent Postoperative Capillary Non-perfusion Zone Progress in Non-proliferative Diabetic Retinopathy

Diabetic Retinopathy Clinical Trial

Official title:
Department of Ophthalmology, Ruijin Hospital, Affiliated Medical School, Shanghai Jiaotong University

Clinical Trial Summary

Diabetic retinopathy has been found progress in 20-70% diabetic patient after cataract phacoemulsification surgery. Intravitreal injection of anti-VEGF Ranibizumab is an important treatment for diabetic retinopathy including non-proliferative diabetic retinopathy (NPDR). However, there is no research about phacoemulsification surgery combine Intravitreal injection of Ranibizumab on diabetic retinopathy. The research focus on the effect of phacoemulsification surgery combine intravitreal injection of Ranibizumab on mild non-proliferative diabetic retinopathy and explore the reasons for differences in treatment outcomes.

Clinical Trial Description

This research is a single-center prospective, randomized controlled study. Patient were divided into two groups, the control group is phacoemulsification surgery group and the intervention group is phacoemulsification surgery combine intravitreal injection of Ranibizumab group. Eye examination including visual acuity, intraocular pressure(IOP), fundus fluoroscopy, macular optical coherence tomograph（OCT） examination, were taken before cataract surgery. The anterior aqueous humor was extracted before cataract phacoemulsification in the combined operation group, and 0.05 ml of ranibizumab was injected into the vitreous immediately after the operation. The aqueous humor concentrations of vascular endothelial growth factor（VEGF）, interleukin（IL）IL-2, IL-4, and Tumor Necrosis Factor（TNF） were checked by real-time polymerase chain reaction assay（RT-PCR） and ELISA analysis. The Best Corrected Visual Acuity（BCVA）, IOP and fundus lesions changes were observed in the two groups after operation. Diabetic retinopathy capillary non-perfusion zone were evaluated one year after phacoemulsification surgery. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05386160
Study type Interventional
Source Ruijin Hospital
Contact Zijian Yang, Dr.
Phone +862167888999
Email dyangzj@163.com
Status Recruiting
Phase Phase 4
Start date July 1, 2022
Completion date March 1, 2023
View Details
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