Efficacy and Safety of Intravitreal Injection of Triamcinolone Acetonide and Conbercept for Intraocular Lens after Cataract Surgery

Abstract

Objective. To investigate the effect of intravitreal injection of triamcinolone acetonide and conbercept on the efficacy and safety of diabetic macular edema (DME) after cataract intraocular lens (IOL) surgery. Methods. A total of 350 patients with cataract complicated with diabetic macular edema in our hospital from January 2017 to July 2021 were randomly divided into conbercept group and triamcinolone acetonide group. Patients in the conbercept group were given intravitreal injection of conbercept during IOL surgery, and patients in the triamcinolone acetonide group were given injection of triamcinolone acetonide during surgery. Results. Three months after treatment, the best-corrected visual acuity of the two groups was significantly higher than before, the corrected visual acuity of the conbercept group was more significant than the triamcinolone acetonide group, and the intraocular pressure of the triamcinolone acetonide group was higher than the conbercept group. The foveal thickness and macular volume were significantly reduced in both groups, and was reduced more in the conbercept group than in the triamcinolone acetonide group. The contents of VEGF, SDF-1, and IL-6 in both groups were significantly decreased, and the decrease was more significant in the conbercept group than in the triamcinolone acetonide group. The patients with elevated intraocular pressure, headache and vomiting, orbital swelling pain, eye swelling pain, and eye pain in the triamcinolone acetonide group were significantly higher than those in the conbercept group ( $P<0.05$ ). Conclusions. Conbercept and triamcinolone acetonide has a good therapeutic effect on DME in pseudophakic eyes after cataract IOL surgery, which can reduce the degree of macular edema and improve the visual function. However, the therapeutic effect of injection therapy with conbercept is safe, the prognosis is better, and the complication rate is low.