全域扫频OCTA与荧光素眼底血管造影在糖尿病视网膜病变应用中的对比分析

目的 比较全域扫频光学相干断层扫描血管造影（OCTA）与荧光素眼底血管造影（FFA）对糖尿病视网膜病变（DR）的诊断价值。方法 选取2022年2月至2022年4月就诊于安徽医科大学第二附属医院眼科门诊的糖尿病视网膜病变患者35例（70眼）,每位患者均使用超广角彩色眼底照相（UWF CFP）检查。采用全域扫频OCTA和FFA分别检查受试者视网膜,并分析两者对视网膜微血管瘤（MA）、视网膜新生血管（RNV）、视网膜无灌注区（NPAs）、视网膜内微血管异常（IRMA）、糖尿病性黄斑水肿（DME）的检出率差异。结果 全域扫频OCTA中MA、RNV、NPAs、IRMA、DME的检出率与FFA相比,差异无统计学意义（P>0.05）,全域扫频OCTA与FFA对DR的筛查、诊断、分类一致性良好（Kappa值>0.75）。结论 全域扫频OCTA在DR应用中具有广阔的前景,可作为DR无创性筛查、诊断、随访的重要依据。     

玻璃体切除术联合视网膜激光光凝治疗严重增殖性糖尿病视网膜病变的疗效分析

目的：分析玻璃体切除术治疗严重增殖型糖尿病视网膜病变（ＰＤＲ）的疗效。方法：ＰＤＲ患者３１例（３５眼）,在控制血糖、血压情况下行玻璃体切除术,术中均作次全或全视网膜光凝。分析手术前后及随访６～３２个月的资料。结果：最后随访时,视网膜平伏,眼底清晰可见,保留一定视力的手术成功眼为２９眼,最后成功率为８２．９％;病变较轻组比病变重度组成功率高（Ｐ〈０．０５）;出血时间〉６个月组较出血时间≤６个月成功率     

血浆内皮素和非酯化脂肪酸改变与糖尿病视网膜病变的关系

目的：为探讨血浆内皮素（ＥＴ）和非酯化脂肪酸（ＮＥＦＡ）水平与糖尿病视网膜病变（ＤＲ）Ｒ 关系。方法：分组分析了５６例伴和不伴ＤＲ的２型糖尿病（ＤＭ）人血浆ＥＴ和ＮＥＥＡ水平,并与正常人进行了比较。结果：２型ＤＭ病人血浆ＥＴ水平明显高于正常人,伴有ＤＲ组病人又明显高于无ＤＲ的病人。     

Novel imaging techniques for diabetic macular edema

Retinal edema should be defined as any increase of water of the retinal tissue resulting in an increase in its volume. It may be of cytotoxic or vasogenic origin. Development of vasogenic macular edema is dependent on a series of factors such as blood pressure, blood-retinal barrier permeability, retinal cell damage, retinal tissue osmotic pressure and retinal tissue compliance. Objective measurements of retinal thickness are now possible using the Retinal Thickness Analyser. Localised measurements of blood-retinal barrier permeability may also be obtained using the Retinal Leakage Analyser, a modified confocal scanning laser fluorometer, while obtaining simultaneously angiographic images of the choroid and retina. These new imaging techniques show that cytotoxic and vasogenic retinal edema may occur independently in the early stages of diabetic retinopathy. These findings offer new perpectives for designing novel therapeutic strategies. This revised version was published online in July 2006 with corrections to the Cover Date.     

糖尿病性视网膜病变的血液流变学改变

目的探讨糖尿病视网膜病变患者的血液流变学变化。方法对２６例糖尿病视网膜病变（ＤＲ）患者、３２例糖尿病眼底正常者（ＮＤＲ）和３１例正常人（对照组）进行血液流变学测定。结果ＤＲ组的全血粘度、血浆粘度、血沉均高于ＮＤＲ组。结论血液粘度的升高与ＤＲ的发生有关。     

Current therapy of retrolental fibroplasia. Retinopathy of prematurity

Retrolental fibroplasia, frequently referred to now as the "retinopathy of prematurity," has shown an increased incidence in recent years. This is apparently due to advances in neonatal care, which have resulted in a four- to five-fold improvement in the survival of the extremely low birthweight infants and it is these infants who are at the highest risk of developing retrolental fibroplasia. The use of large supplements of vitamin E, a known antioxidant, is discussed along with other forms of therapy.     

Vitronectin and proliferative intraocular disorders. II. Expression of cell surface receptors for fibronectin and vitronectin in periretinal membranes

Several cell types participate in the formation of vitreoretinal traction membranes in proliferative intraocular disorders. The communication between these cells involves hormones, growth factors, and the interaction with extracellular matrix molecules. We have previously demonstrated a partial colocalisation of two potent mediators of cell attachment, fibronectin and vitronectin, in periretinal membranes from patients with proliferative vitreoretinopathy (PVR). We found a similar pattern of vitronectin and fibronectin deposition in proliferative diabetic retinopathy (PDR) (n = 6). Now we show the expression of the corresponding cell surface receptors, integrins, for fibronectin and vitronectin by proliferating cells in 22 periretinal membranes, including traumatic (n = 8) and idiopathic (n = 8) PVR as well as PDR membranes (n = 6). Integrins are membrane receptors for extracellular matrix macromolecules which are involved in such basic biological phenomena as embryogenesis and metastasis. Future studies on the pathogenesis of vitreoretinal proliferation will have to focus on the initiation, maintenance, and regulation of this intercellular communication network involving attachment proteins and integrins.     

中医药治疗糖尿病视网膜病变的临床与实验研究近况

综述了近年来中医药治疗糖尿病视网膜病变的研究状况及有待解决的问题。