康柏西普对DME患者黄斑部微循环的影响

目的:观察糖尿病性黄斑水肿(DME)患者注射康柏西普前后黄斑部视网膜浅层毛细血管密度及房水因子的变化,初步探讨康柏西普对DME患者黄斑部微循环的影响。方法:前瞻性病例对照研究。收集2019-12/2020-12就诊于我院眼科的DME患者10例11眼作为DME组,收集15例无全身系统疾病和眼底疾病的白内障患者作为白内障组以及20例年龄、性别相匹配的视力正常健康人作为对照组。DME组均行每月1次玻璃体腔注射康柏西普总计6次治疗方案。对比对照组与DME患者术前视网膜浅层毛细血管灌注密度(PSCP)、视网膜浅层毛细血管长度密度(VSCP)、中心凹无血管灌注区(FAZ)面积、黄斑中心凹视网膜厚度(CMT)、最佳矫正视力(BCVA)差异。使用液相悬浮芯片技术检测白内障组与DME组患者术前房水因子,对比两组房水因子的差异以及DME组总计6次注射康柏西普后VSCP、PSCP、FAZ、CMT、BCVA和房水因子变化。结果:术前DME组与对照组之间PSCP、VSCP、FAZ面积、BCVA、CMT均有差异(P<0.01);术前DME组与白内障组房水中血管生成素样蛋白4(ANGPTL4)、血管内皮生长因子(VEGF)、白细胞介素-6(IL-6)、白细胞介素-8(IL-8)均有差异(P<0.001);注射康柏西普5mo DME组PCSP、BCVA均较术前提升,CMT较术前减小(均P<0.05);DME组房水中ANGPTL4、VEGF、IL-6浓度较基线明显下降(均P<0.05)。DME组患者于注射康柏西普1mo时PSCP改善、BCVA提升以及CMT下降最明显;注射康柏西普1mo时房水中ANGPTL4、VEGF及IL-6浓度下降最明显。房水中VEGF与CMT变化的绝对值呈正相关。结论:DME患者注射康柏西普能改善视网膜缺血,降低房水中VEGF及相关因子浓度,有效改善BCVA,减轻黄斑水肿。

夜戴型非球面角膜塑形镜对眼表微环境的影响

夜戴型非球面角膜塑形镜(night-wear aspheric orthokeratology lens),以下简称OK镜,利用夜间睡眠时间矫正视力,是目前为数不多的可以让近视的孩子白天不戴眼镜的方法,所以经常作为8~16岁近视人群临床上首选推荐。OK镜通过对眼表面产生逆向几何作用力的压迫作用,使得角膜曲率降低,从而达到暂时性的矫正近视的作用。目前作为一种公认的治疗青少年近视的非手术方法之一,非球面角膜塑形镜的镜片材质和验配水平一直在不断的创新和升级。OK镜片直接覆盖于眼表,长期配戴会对眼表微环境造成一定影响,比如睑板腺、泪膜、结膜、角膜以及眼表微生物等,甚至可能造成眼表微环境的失衡,从而导致眼表疾病的发生和发展。本文旨在分析配戴非球面角膜塑形镜对眼表睑板腺形态、泪膜的形态与功能、结膜微循环、角膜细胞形态、眼表微生物等因素的影响,以指导临床医生对青少年配戴角膜塑形镜时给予全面考量,增加夜戴型非球面角膜塑形镜的安全性和有效性。

Rhegmatogenous retinal detachment after intraocular lens implantation in high myopia:A case report and literature review

Objective:To observe the changes of diagnosis and treatment of a patient with rhegmatogenous retinal detachment(RRD)after phakic intraocular lens implantation in high myopia,and analyze its mechanism and treatment combined with the literature.Methods:To report a case of rhegmatogenous retinal detachment(RRD)after phakic intraocular lens implantation.Result:Two months after the patient underwent scleral cerclage+pad pressing+vitrectomy+silicone oil filling,the fundus color photos showed that the vitreous cavity was filled with silicone oil,the fundus retina was flat,the cerclage ridge was obvious,and a large number of old laser spots.After the silicone oil in the eye was removed,the eye examination:the naked visual acuity of the left eye was 0.12,the corrected visual acuity was-3.25ds/-1.50dc*180=0.4,the intraocular pressure was 19mmHg,the ring ridge was seen in the fundus after mydriasis,a large number of old laser spots and flat retina;The OCT showed that the macular structure of the left eye was complete and there was no subretinal fluid.Conclusion:Scleral cerclage+padding+vitrectomy+silicone oil filling is an effective treatment for retinal detachment(RD)after PIOL.

Clinical correlation between blood glucose control-related factors and postoperative fundus hemorrhage after pan-retinal photocoagulation for diabetic retinopathy

Objective: To discuss the clinical correlation between blood glucose control-related factors and postoperative fundus hemorrhage after pan-retinal photocoagulation (PRP) for diabetic retinopathy (DR). Method: From February 2013 to January 2017, 98 patients at 7 d after PRP for DR were recruited. Depending on postoperative fundus status, the patients were divided into normal fundus group (n=42), fundus hemorrhage group (n=30) and proliferative DR group (n=27). The baseline data and monitoring data of blood glucose and blood lipid were recorded. Dynamic glucose monitor system was used to detect indicators of blood glucose fluctuation, MAGE and MBG. Result: The three groups were compared in terms of systolic pressure, diastolic pressure, course of disease, gender, age and body mass index (BMI), and no significant differences were found. As compared with the normal fundus group, the fundus hemorrhage group and proliferative DR group had a significant increase in FPG, HbA1c, 2hPG, LDL-C and TC, but a decrease in HDL-C. MAGE and MBG for the fundus hemorrhage group were (4.89±1.42) and (7.82±1.42), respectively, which were higher than those of the normal fundus group, but no significantly different from those of the proliferative DR group. Linear correlation analysis was performed in 98 patients, and significant linear correlations existed between MAGE, MBG, FPG, HbA1c and LDL-C with fundus hemorrhage. Conclusion: Blood glucose control-related factors MAGE, MBG, FPG, HbA1c and LDL-C were important influence factors of fundus hemorrhage following PRP for DR. Appropriate countermeasures are needed to reduce the fluctuation of blood glucose level.