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AIM:To compare and analyze the diagnostic value of iris fluorescein angiography(IFA)combined with fundus fluorescein angiography(FFA), indocyanine green angiograph(ICGA), fundus fluorescein angiography in the diagnosis of early diabetic retinitis(DR). METHODS: Totally 70 patients(136 eyes)with early diabetic retinopathy enrolled in our hospital from August 2015 to August 2016 were selected in this study. All patients were respectively treated with ICGA, FFA and IFA+FFA, and the detection results of three kinds of imaging methods were analyzed. RESULTS: There were 120 pathological eyes(88.2%)were detected by FFA, 124 pathological eyes(91.2%)were detected by ICGA, 130 pathological eyes(95.6%)were detected by IFA+FFA, and there was no significant difference in the detection rate between the three methods(P>0.05). FFA detected 48 eyes with neovascularization, 18 eyes with vitreous hemorrhage, 38 eyes with macular edema, 16 eyes without perfusion area; ICGA detected 49 eyes with neovascularization, 38 eyes with macular edema, 17 eyes with vitreous hemorrhage, 20 eyes without perfusion area; IFA+FFA detected 17 eyes with proliferative diabetic iridopathy(DI), 22 eyes with non-proliferative DI, 5 eyes with NVG, 92 eyes without DI. CONCLUSION: In the diagnosis of early diabetic retinopathy, iris fluorescence angiography, fundus fluorescein angiography and indocyanine green angiography all have good diagnostic value, but IFA+FFA can detect the diabetic retinopathy in time and provide the help for the timely treatment.

Someone called ocular hypertension as suspected glaucoma or early glaucoma. There was important guiding significance to study diagnosis, assessment and prognosis in ocular hypertension with the depth of clinical research and improvement of detection technology. We summarized the study advancement about special examinations with ocular hypertension in recent years.

In the context of vigorous development of big data and 5G technology,information encryption in high-speed communication systems has become a new research hotspot.How to increase data throughput and reduce the difficulty of adapting encryption algorithms to different application scenarios while ensuring high data security has become important research topics.Aiming at the problem that traditional software’s SM4-GCM algorithm has a low throughput rate and is difficult to apply in changing 5G and big data scenarios,this paper analyzes the characteristics of SM4-GCM algorithm based on the reconfigurable characteristics of FPGA,using Mastrovito,Karatsuba and fast remainder algorithms.Two high-performance,CNC-separated and expandable circuit structures are designed.Full-pipeline technology and four-degree parallel technology are used to accelerate the optimization of SM4-GCM algorithm.While ensuring high security,it can achieve a high throughput rate,and can be flexibly transplanted to various application scenarios.Experimental results show that the throughput rates of the proposed two solutions in this paper for a single SM4-GCM module have reach 28.16 Gbps and 28.8 Gbps,respectively,which are superior to similar published designs in terms of performance and scalability.