高度近视眼黄斑部视网膜神经上皮层厚度的分区测量研究

目的:研究高度近视眼黄斑部各区域视网膜神经上皮层厚度的分布特点,并分析其与性别、年龄、眼压、等效球镜度数和眼轴长度之间的相关性。方法:除眼底视盘旁近视弧外无其他眼部异常和眼底病变的高度近视患者102例,随机选取每例患者1眼受检。所有受检眼均予眼压、屈光检查、眼轴长度测定、9个区域的黄斑视网膜神经上皮层平均厚度和黄斑中心凹视网膜厚度最小值测定。将黄斑部各区域视网膜神经上皮层平均厚度和黄斑中心凹视网膜厚度最小值与性别、年龄、眼压、等效球镜度数及眼轴长度进行相关性分析和偏相关分析。各区黄斑视网膜神经上皮层平均厚度和黄斑中心凹视网膜厚度最小值进行多配对样本的Friedman检验。结果:本组受检者黄斑中心凹视网膜厚度最小值为175.34±29.01μm。各区黄斑视网膜神经上皮层平均厚度分布存在显著差异:内环区视网膜神经上皮层厚度较外环区厚;鼻侧和上下方视网膜神经上皮层较厚,颞侧较薄;中央区和中心小凹最薄。随着眼轴的延长,中央区视网膜神经上皮层厚度增厚,外环区上方视网膜神经上皮层变薄。结论:眼轴长度增加所致的黄斑视网膜神经上皮层厚度改变可能是高度近视黄斑变性发生发展的病理基础。     

不同屈光度近视青少年儿童黄斑区血管密度和视网膜厚度的比较

目的:通过光学相干断层扫描血管成像技术(OCTA)观察与比较不同屈光度近视青少年儿童黄斑区血管密度和视网膜厚度的变化,并探讨其相关性。方法:前瞻性横断面研究。纳入6~18岁青少年儿童115例230眼。根据等效球镜度数(SE)分为4组:正视组16例32眼,低度近视组47例94眼,中度近视组34例68眼,高度近视组18例36眼。RTVueXR扫描黄斑区6mm×6mm范围,系统自动分区,分为以黄斑中心小凹为中心,直径分别为1mm的中心凹(fovea)环、1~3mm的内环(parafovea)、3~6mm的外环(perifovea),且每个圆环被进一步划分为颞(T)、上(S)、鼻(N)、下(I)4个象限,定量分析各分区浅层、深层毛细血管密度和视网膜厚度。结果:正视、低度、中度和高度近视组黄斑区整体浅层毛细血管密度依次显著减低,分别为(44.4±3.5)%、(44.8±3.8)%、(44.3±3.8)%、(42.6±4.5)%(F=2.963,P=0.033),内环颞侧浅层毛细血管密度分别为(46.1±3.5)%、(46.8±5.1)%、(46.2±4.3)%、(43.8±5.5)%(F=3.436,P=0.018);四组黄斑区整体深层毛细血管密度随着近视度数增加亦显著降低,分别为(49.9±4.1)%、(48.4±4.7)%、(47.9±5.5)%、(45.3±4.7)%(F=4.806,P=0.003),外环深层毛细血管密度分别为(49±4.4)%、(47.2±5.2)%、(46.6±6)%、(43.6±5.1)%(F=5.495,P=0.001)。四组黄斑区整体视网膜厚度分别为293.9±12.9、295.5±13.0、290.9±12.0、284.5±10.7μm(F=6.606,P<0.001)。内环颞侧、鼻侧浅层毛细血管密度与SE呈正相关(r=0.221、0.219,P=0.001、0.001),外环颞侧、上方、鼻侧、下方深层毛细血管密度与SE呈正相关(r=0.172、0.200、0.250、0.296,P=0.011、0.003、<0.001、<0.001);黄斑区除中心凹外其余区域视网膜厚度与SE均呈正相关(P<0.05)。结论:随着青少年儿童近视度数的增加,黄斑区浅层毛细血管密度降低,以内环颞侧为甚;深层毛细血管密度降低,以外环范围内为甚;视网膜厚度降低,以内环和外环范围为甚。青少年儿童近视随着屈光度增加,会导致黄斑区结构和血流循环的变化,在高度近视眼中改变尤为显著。     

高度近视眼黄斑区视网膜厚度的相关因素分析

目的：探讨黄斑区视网膜厚度与屈光度、主导眼、眼轴长度的关系。 方法：入选高度近视组患者128例180眼,其中主导眼79眼,非主导眼101眼,应用OCT测量黄斑区及周围视网膜厚度及应用A超测量眼轴长度,另设正视眼组112人180眼,其中主导眼106眼,非主导眼74眼作为对照,获得数据进行统计学分析。 结果：高度近视患者的平均眼轴长度29.57依1.57 mm与正常组患者的平均眼轴长度（24.13依0.90mm）相比显著延长（P〈0.05）。眼轴长度与黄斑中心凹内环区（距黄斑中心凹1～3mm区）上方（ S1）、下方（ I1）、颞侧（ T1）及黄斑中心凹外环区（距黄斑中心凹3～6mm区）上方（ S2）、下方（I2）、鼻侧（N2）、颞侧（T2）视网膜厚度存在相关性,与黄斑中心区及黄斑中心凹内环区鼻侧（ N1）视网膜厚度无相关性。高度近视眼组黄斑中心区及各个分区均较正视眼组明显变薄（P〈0.05）。高度近视主导眼与非主导眼黄斑区视网膜厚度相比,无统计学意义（ P〉0.05）。 结论：高度近视患者黄斑区视网膜厚度OCT的检测值低于正视眼组。高度近视组眼轴长度与黄斑区上方（ S1）、下方（I1）、颞侧（T1）、上方（S2）、下方（I2）、鼻侧（N2）、颞侧（ T2）视网膜厚度存在负相关关系。高度近视眼中主导眼黄斑区视网膜厚度与非主导眼黄斑区视网膜厚度无差异性。     

眼轴长度对非病理性近视黄斑区视网膜厚度的影响

目的　使用频域光学相干断层扫描（ｏｐｔｉｃａｌｃｏｈｅｒｅｎｃｅｔｏｍｏｇｒａｐｈｙ,ＯＣＴ）研究眼轴长度对非病理性近视黄斑区视网膜厚度的影响。方法　筛选无眼底改变的近视患者９０例９０眼,男４７例,女４３例,年龄１８～３５岁。入选患者根据屈光度数和眼轴长度分为３组:低、中度近视组（ｌｏｗａｎｄｍｅｄｉｕｍｍｙｏｐｉａｇｒｏｕｐ,ＬＭＭＧ）,等效球镜度数为－０．５０～＜－６．００Ｄ且眼轴长度为２４～＜２６ｍｍ,共２９眼;高度近视组（ｈｉｇｈｍｙｏｐｉａｇｒｏｕｐ,ＨＭＧ）,等效球镜度数为－６．００～＜－１０．００Ｄ且眼轴长度为２６～＜２８ｍｍ,共３７眼;超高度近视组（ｓｕｐｅｒｈｉｇｈｍｙｏｐｉａｇｒｏｕｐ,ＳＨＭＧ）,等效球镜度数≥ －１０．００Ｄ且眼轴长度≥２８ｍｍ,共２４眼。根据黄斑区９分区模式使用ＣｉｒｒｕｓＨＤ－ＯＣＴ检测入选患者黄斑区视网膜厚度和体积。使用单因素方差分析比较３组间黄斑区视网膜厚度测量值的差异。使用线性回归分析黄斑区视网膜厚度测量值与屈光度数和眼轴长度的关系。结果　ＨＭＧ的内环下方黄斑厚度（ｉｎｆｅｒｉｏｒｉｎｎｅｒｍａｃｕｌａｒｔｈｉｃｋｎｅｓｓ,ＩＩＭ）、内环颞侧黄斑厚度（ｔｅｍｐｏｒａｌｉｎｎｅｒｍａｃｕｌａｒｔｈｉｃｋｎｅｓｓ,ＴＩＭ）和外环所有象限的视网膜厚度测量值明显小于ＬＭＭＧ,但黄斑中心区厚度（ｃｅｎｔｒａｌｓｕｂｆｉｅｌｄｔｈｉｃｋｎｅｓｓ,ＣＳＴ）测量值明显大于ＬＭＭＧ（均为Ｐ＜０．０５）。ＳＨＭＧ的ＩＩＭ、ＴＩＭ和外环所有象限的视网膜厚度测量值明显小于ＬＭＭＧ,但ＣＳＴ测量值明显大于ＬＭＭＧ（均为Ｐ＜０．０５）。ＳＨＭＧ外环所有象限的视网膜厚度测量值明显小于ＨＭＧ,但ＣＳＴ测量值明显大于ＨＭＧ（均为Ｐ＜０．０５）。ＣＳＴ测量值与屈光度数呈负相关,与眼轴长度呈正相关。内环平均厚度、ＩＩＭ、ＴＩＭ测量值与屈光度数呈正相关,与眼轴长度呈负相关。外环每一象限的厚度、外环平均厚度、黄斑区平均厚度和黄斑体积测量值与屈光度数均呈正相关,与眼轴长度均呈负相关。结论　随着眼轴长度和屈光度数的增加,非病理性近视眼黄斑中心视网膜厚度增加,内环和外环厚度降低。     

Scleral thickness in highly myopic eyes measured by enhanced depth imaging optical coherence tomography

Purpose

The purpose of this study was to determine the subfoveal scleral thickness in highly myopic eyes by enhanced depth imaging spectral-domain optical coherence tomography (EDI-OCT) and to identify the ocular parameters significantly associated with the scleral thickness.

Methods

The subfoveal scleral thickness of myopic eyes (≥−8 diopters (D) or axial length ≥26.5 mm) was examined by EDI-OCT. The correlations between the thickness and the best-corrected visual acuity (BCVA), refractive error, axial length (AL), the subfoveal retinal thickness, choroidal thickness, and posterior staphyloma height 2 mm from the fovea were investigated.

Results

A total of 75 eyes of 54 patients (21 men, 33 women; mean age, 62.3±11.3 years; mean AL, 30.2±1.68 mm) were studied. Eighteen eyes had no pathological retinochoroidal lesions, and 57 eyes had retinochoroidal lesion, that is, myopic schisis, choroidal neovascularization, and other retinochoroidal pathologies. The mean subfoveal scleral thickness was 284.0±70.4 μm, and the thickness was significantly correlated negatively with the absolute value of the nasal and overall average posterior staphyloma height (P<0.05 and P<0.01, respectively). The subfoveal scleral thickness was also significantly correlated negatively with the relative value of the superior, nasal, and overall average posterior staphyloma height (P<0.05, P<0.01, and P<0.001, respectively). Stepwise analyses showed that the factor most significantly associated with the scleral thickness was the average relative posterior staphyloma height (F=16.0, P<0.001). The scleral thickness was not significantly different between eyes with and without myopic retinochoroidal pathologies (P>0.05).

Conclusion

Posterior staphyloma formation was a key factor associated with a posterior scleral thinning in highly myopic eyes.     

不同级别豹纹状眼底对黄斑区视网膜血管密度及厚度的影响

目的　运用光学相干断层扫描血管成像技术（optical coherence tomography angiography,OCTA）对不同级别豹纹状眼底黄斑区视网膜进行测量,探究不同级别豹纹状眼底黄斑区视网膜浅层及深层血管密度和厚度的差异。方法　前瞻性非随机对照研究。收集2019年1月至2019年6月在首都医科大学附属北京同仁医院眼科就诊的高度近视（SE＜-6.00 D）眼底豹纹状改变的患者共52例（63眼）,按照眼底豹纹状改变的级别将其分为四组:0级组(18眼)、1级组(22眼)、2级组(12眼)、3级组(11眼）。选取黄斑中心凹周围区、黄斑旁中心凹以及黄斑中心凹为观察指标,通过OCTA自动分层获得黄斑区视网膜浅层和深层的血管密度及视网膜厚度,采用秩和检验、方差分析以及SNK检验对数据进行分析。结果　四组患者的年龄呈非正态分布,差异无统计学意义（P=0.64）。黄斑中心凹周围区以及黄斑旁中心凹区:四组患者间视网膜浅层及深层血管密度差异均有统计学意义（均为P<0.05）;视网膜厚度:以0级组作为参照组,0级组与1级组、2级组、3级组差异均有统计学意义（均为P<0.05）,且呈负相关关系。在黄斑中心凹区域:四组患者间视网膜浅层及深层血管密度和黄斑区视网膜厚度差异均无统计学意义（均为P＞0.05）。结论　随着豹纹状眼底级别的加深,眼底黄斑中心凹周围区以及旁中心凹区视网膜浅层及深层血管密度有统计学差异,且视网膜厚度随豹纹状眼底的级别加重呈进行性变薄趋势。OCTA可为评估不同级别豹纹状眼底视网膜的组织结构变化提供参考资料。     

先天性高度近视弱视患者黄斑区神经节细胞厚度研究

目的:通过检测高度近视性弱视者弱视眼黄斑区视网膜神经节细胞厚度,探讨该类弱视的程度与视网膜神经节细胞厚度的关系。方法:选取先天性高度近视(10g/L阿托品眼膏散瞳后>-4.00DS)并伴有弱视患者12例20眼。年龄3.5～15岁。采用傅立叶域光学相干断层扫描仪(fourier-domain optica lcoherence tomography,FD-OCT)测量弱视眼的黄斑区神经节细胞厚度以及黄斑区视网膜厚度,并比较神经节细胞层厚度占视网膜层厚度的比例与患者弱视及近视程度的相关性。结果:我们发现高度近视患者近视程度与最佳矫正视力无明显相关性,近视程度高的患者其神经节细胞层相对厚度有变薄现象。结论:先天性近视性弱视的患者黄斑中心区神经节细胞层厚度占视网膜厚度的比例有下降。     

Various configuration types of the foveal avascular zone with related factors in normal Chinese adults with or without myopia assessed by swept-source OCT angiography

AIM: To describe the morphological characteristics of foveal avascular zone (FAZ) in normal Chinese adults with or without myopia by swept-source optical coherence tomography angiography (SS-OCTA) and analyze the possible associated factors. METHODS: Normal Chinese adults with or without myopia aged between 18 and 60y were recruited into the study. One eye in each individual was randomly selected for scanning using SS-OCTA. FAZ parameters, central retinal thickness (CRT) and central choroidal thickness (CCT) were then analyzed. Correlations between systemic and ocular variables and FAZ parameters were subsequently evaluated. The subgroup analysis based on refractive error was also carried out. RESULTS: In total, 127 eyes out of 127 normal subjects were finally included in the study (mean age 29.5±8.22y, 61 males and 66 females). The pattern of FAZ was variable: round configuration in 28 eyes (22%), quadrilateral configuration in 23 eyes (18%), pentagonal configuration in 20 eyes (16%), oval configuration in 15 eyes (12%), triangular configuration in 6 eyes (5%) and irregular configuration in 35 eyes (28%). The mean area of FAZ was 0.37±0.12 mm2. Females had a larger FAZ (0.41±0.11 mm2 vs 0.32±0.11 mm2) compared with that of males (P<0.01). All myopic individuals showed smaller FAZ area and perimeter compared with that of normal individuals (P<0.01). There was no obvious correlation between age and FAZ. In the univariate regression analysis, both axial length (AL) and refractive error were significantly related to FAZ parameters. However, only CRT showed negative correlation with FAZ in the multivariate regression analysis. CONCLUSION: The pattern of FAZ configuration in normal Chinese adults with or without myopia is highly variable. Establishing quantitative parameters of FAZ would not only provide details of macular pathophysiology but could possibly contribute as a biomarker in disease staging.     

糖尿病性黄斑水肿的视网膜厚度和视野检查分析

目的探讨糖尿病性黄斑水肿(diabetic macularedema,DME)的结构与功能检查及主观检查与客观检查之间的关系。方法对正常对照组20例(30眼)、DME 69例(131眼)行光学相干断层扫描(optical coherence tomography,OCT)、荧光素眼底血管造影(fundus fluorescein angiography,FFA)、视野检查,其结果进行对比分析。结果黄斑中心厚度和黄斑光敏感度、黄斑中心厚度与视力、黄斑光敏感度与视力都显著相关,黄斑厚度图与FFA对黄斑异常的检出率无区别。结论随着黄斑结构的改变,DME患眼的视功能也相应地发生一定的变化,但两者并不完全一致,OCT和视野计的联合运用才能全面、客观地反映黄斑情况。结构和功能检查方法各有自己的优势,它们的联合运用有利于DME的早期诊断。     

Identification of retinal thickness and blood flow in age-related macular degeneration with reticular pseudodrusen

AIM: To investigate thickness characteristics and vascular plexuses in retinas with reticular pseudodrusen (RPD) as an early detection strategy for age-related macular degeneration (AMD). METHODS: This retrospective study included 24 subjects (33 eyes) with RPD and 25 heathy control subjects (34 eyes). The superficial capillary plexus (SCP) and the deep capillary plexus (DCP) of the retinal posterior poles were investigated with optical coherence tomography angiography (OCTA). Retinal thicknesses and vessel densities were analyzed statistically. RESULTS: The general retinal thicknesses of RPD eyes were significantly decreased (95%CI -14.080, -0.655; P=0.032). The vessel densities of DCP in RPD eyes were significantly increased in the global (95%CI 1.067, 7.312; P=0.027), parafoveal (95%CI 0.417, 5.241; P=0.022), and perifoveal (95%CI 0.181, 6.842; P=0.039) quadrants. However, the vessel densities of the SCP were rarely increased in the eyes with RPD. CONCLUSION: The thinning of retinas in the RPD group suggests a reduction in the number of cells. Additionally, the increased vessel density of the DCP in retinas with RPD indicates a greater demand for blood supply, possibly due to the hypoxia induced RPD compensation caused by RPD in the outer retina. This study highlights the pathological risks associated with RPD and emphasizes the importance of early intervention to retard the progression of AMD.     

视网膜分支静脉阻塞的黄斑血流及结构特征分析

目的:采用光学相干断层扫描血管成像(OCTA)技术观察视网膜分支静脉阻塞(BRVO)患者黄斑区血流及结构特征,并分析视力的危险因素。方法:收集2018-01/2019-06在抚顺市眼病医院经眼底及眼底荧光造影检查确诊的BRVO患者92例92眼为BRVO组,另选取同期基线资料与BRVO组患者相匹配的健康志愿者38例38眼作为对照组。记录两组受检者的基线资料,并采用OCTA技术观察3mm×3mm范围内黄斑区深层和浅层血流密度、深层和浅层中心凹血流密度、黄斑中心凹厚度、神经上皮层厚度、神经上皮层下积液高度。分析BRVO患者上述参数的相关性,并采用多因素Logistic回归法分析影响视力的危险因素。结果:与对照组相比,BRVO患者视力、黄斑中心凹厚度、深层血流密度、浅层血流密度、深层中心凹血流密度、浅层中心凹血流密度均有差异(P<0.01)。多因素Logistic回归分析显示,年龄(P=0.033,OR=1.152,95%CI 1.011~1.312)、浅层中心凹血流密度(P=0.010,OR=1.260,95%CI 1.056~1.504)、黄斑中心凹厚度(P<0.01,OR=1.033,95%CI 1.021~1.045)均是视力的危险因素。BRVO患者深层及浅层血流密度与黄斑中心凹厚度、神经上皮层厚度均呈负相关(P<0.01),黄斑中心凹厚度与神经上皮层厚度、神经上皮层下积液高度均呈正相关(P<0.01)。结论:利用OCTA可以观察BRVO患者视网膜血流状态及视网膜切面结构的变化,将两者结合起来可以更全面地观察BRVO患者黄斑区视网膜的病变特点。年龄、黄斑中心凹厚度、浅层中心凹血流密度为影响视力的危险因素。     

基于OCTA的白内障超声乳化术后黄斑区视网膜厚度和血管密度分析

目的利用光学相干断层扫描血管成像(optical coherence tomography angiography,OCTA)评估白内障超声乳化术后黄斑区视网膜厚度和血管密度的改变。方法纳入47例(57眼)白内障患者,分别在白内障超声乳化术前及术后1周、1个月和3个月使用OCTA检查患眼黄斑中心凹、黄斑中心凹旁、黄斑中心凹周边视网膜厚度和黄斑区视网膜浅层、深层的微血管密度以及黄斑中心凹无血管区(foveal avascular zone,FAZ)面积的变化。结果与术前相比,术后1个月和3个月黄斑中心凹、黄斑中心凹旁和黄斑中心凹周边视网膜全层厚度均显著增加(均为P<0.05),主要表现在内层视网膜的增加上。术后1周、1个月、3个月,黄斑中心凹旁及黄斑中心凹周边视网膜浅层血管密度与术前相比差异均无统计学意义(均为P>0.05),仅术后1个月视网膜深层黄斑中心凹周边血管密度显著高于术前(P<0.05)。术后1个月和3个月黄斑FAZ面积分别为(0.42±0.23)mm²和(0.34±0.17)mm²,显著低于术前的(0.73±0.9...     

光学相干断层扫描引导下黄斑裂孔性视网膜脱离硅油取出术的疗效评估

背景 黄斑裂孔性视网膜脱离行硅油取出后视网膜脱离复发率高,如何降低术后复发率是研究的热点.光学相干断层扫描(OCT)检查可确认适宜的取油时机,是否有助于提高手术成功率有待进一步临床观察. 目的 OCT观察高度近视黄斑裂孔性视网膜脱离行硅油取出术前黄斑区视网膜的解剖形态,分析影响硅油成功取出的因素. 方法 收集2005年1月至2008年12月经玻璃体切割术治疗的高度近视黄斑裂孔性视网膜脱离患者49例55眼的临床资料,其中联合硅油填充术者40例45眼,术后3～6个月,OCT检查黄斑区形态,行硅油取出术,随访时间均为硅油取出术后1年以上.比较玻璃体切割联合硅油填充术前、硅油取出术前和硅油取出术后1年患眼黄斑区的OCT表现以及最佳矫正视力(BCVA).OCT检查黄斑裂孔愈合标准分为一类愈合及二类愈合.结果 硅油取出前OCT示40眼视网膜成功复位,占88.89％,其中2眼裂孔愈合,裂孔边缘消失,属于一类愈合;38眼裂孔边缘平贴于视网膜色素上皮( RPE)层,但中心凹处神经纤维层存在缺损及RPE层暴露,属于二类愈合.硅油取出术后,二类愈合眼中l眼于术后2年发现视网膜脱离复发;联合硅油填充术者40例45眼术前BCVA为1.93±0.06,硅油取出后1年BCVA为1.16±0.07,术后视力较术前明显提高,差异有统计学意义(P=0.00). 结论 OCT检查可以作为硅油取出的术前评估.OCT证实黄斑裂孔闭合或黄斑裂孔的贴附眼可行硅油取出术;OCT检查示黄斑裂孔未闭合的贴附眼行硅油取出后预后较差,是视网膜再脱离的危险因素之一,需长期进行随访.     

Surgical outcomes of macular buckling techniques for macular retinoschisis in highly myopic eyes

Purpose

To report the anatomic and visual results following macular buckling for patients with macular retinoschisis related to high myopia.

Methods

Thirty-nine highly myopic eyes (mean refractive error −16.7 D; range, −9 to −24 D) of 36 patients (mean age 59 years; range, 35–79 years) presenting with macular retinoschisis associated with a posterior staphyloma, who underwent combined vitrectomy and macular buckling were evaluated. Main outcome measures included best-corrected visual acuity (BCVA) and optical coherence tomography (OCT) findings. Three cases were excluded due to short follow-up (less than 3 months). The mean follow-up was 16 months.

Results

The mean BCVA increased from 0.76 to 0.43 LogMAR (p = 0.001). Visual acuity improved in 30 eyes (83.3%), remained stable in three eyes (8.3%) and decreased in three eyes (8.3%). OCT showed resolution of foveoschisis with foveal reattachment in all eyes. None of the evaluated patients developed a macular hole during follow-up.

Conclusion

Macular buckling associated with vitrectomy results in good anatomic and visual outcomes in patients with myopic foveoschisis.     

Distribution characteristics of retinal nerve fiber layer thickness in macular area and its relationship with vessel density in highly myopic eyes

AIM: To investigate the distribution characteristics of retinal nerve fiber layer thickness and vessel density in macular area of eyes with high myopia, using optical coherence tomography angiography (OCTA). METHODS: Forty eyes in 20 patients diagnosed with high myopia, age 29.90±7.92 years old, with a spherical equivalent of -8.95±2.01 D, were recruited. The retinal nerve fiber layer (RNFL) thickness and the vessel density of the superficial retinal capillary plexus, deep retinal capillary plexus, and choroidal capillary were measured by OCTA. Macular regions within a 6-mm diameter circle were divided into 9 subfields: the central subfield, and the pericentral and peripheral regions of superior, inferior, nasal, and temporal quadrants. The retinal nerve fiber layer thicknesses of different subfields were compared, and their relationships with spherical equivalent, axial length, and vessel density were analyzed. RESULTS: In the pericentral region, the retinal nerve fiber layer thickness of the superior quadrant was the lowest, whereas thickness was highest in the inferior quadrant (all P<0.05). In the peripheral region, the retinal nerve fiber layer thickness of the temporal quadrant was the lowest (all P<0.05). A negative correlation was found between the retinal nerve fiber layer thickness and spherical equivalent (r=-0.356, P=0.024) in the peripheral superior subfield. The vessel density of superficial retinal capillary plexus was positively correlated with retinal nerve fiber layer thickness in the nasal and inferior quadrants of the pericentral region and in the superior, nasal, and inferior quadrants of the peripheral region (r=0.314, 0.408, 0.467, 0.655, and 0.737 respectively; and all P<0.05), whereas the vessel density of choroidal capillary was negatively correlated with retinal nerve fiber layer thickness in the peripheral superior subfield (r= -0.356, P=0.024). CONCLUSION: The RNFL of macular areas is not uniformly distributed in high myopia (HM). As the spherical equivalent (SE) increases, the RNFL thickness decreases in certain areas, which correlates with the vessel density(VD) of superficial retinal capillary plexus (SCP) and choroidal capillary (CC) layers.     

Ocular Complications in Influenza Virus Infection

Purpose: To describe a case series of ocular complications associated with upper respiratory tract infections.

Methods: Four patients aged 21–61 years (three females, one male) had confirmed ocular complications connected with a general upper respiratory tract infection with myalgia and fever. Ophthalmological examination, including a visual acuity test, a slit-lamp exam, intraocular pressure measurements, fluorescein and indocyanine green angiography, optical coherence tomography (OCT), and diagnostic tests for influenza were performed in the patients (RT-PCR, HAI).

Results: Acute posterior multifocal placoid pigment epitheliopathy (APMPPE) was diagnosed in three patients and serous macular detachment (SME) in one. Influenza virus infection was confirmed by molecular biological methods (RT-PCR) or the hemagglutination inhibition test (HAI) in two patients. All patients were treated with systemic prednisone.

Conclusion: A coincidence between APMPPE and SME epitheliopathy and influenza virus infection was observed in different months of a given epidemic season.     

近视患者黄斑区微血流密度及神经节细胞复合体厚度的变化

目的 探讨近视患者黄斑区微血流密度及黄斑区神经节细胞复合体(mGCC)厚度的变化.方法 选取2018年12月至2020年12月就诊于遵义医科大学第二附属医院的近视患者25例(41眼)作为研究对象.按照患者屈光度分为:中度近视组(-3.00～-5.75 D)13例(21眼)和高度近视组(-6.00～-9.25 D)12例...     

屈光参差性弱视患者黄斑区视网膜厚度及微血管系统的变化:基于OCTA的研究

目的 使用光学相干断层扫描血管成像(OCTA)检测屈光参差性弱视儿童黄斑区视网膜厚度及微血管系统的差异,探究屈光参差性弱视的发病机制.方法 纳入2020年6月至12月在南昌大学第二附属医院儿童眼科门诊就诊的4～14岁屈光参差性弱视儿童41例及正常视力儿童22例,将屈光参差性弱视患儿的弱视眼纳入为弱视眼组,非弱视眼纳入为...     

LASIK术后黄斑区视网膜厚度变化的临床研究

目的：探讨准分子激光原位角膜磨镶术(laser in situ keratomileusis,LASIK)后黄斑部视网膜厚度的变化。

方法：随机抽取LASIK手术的近视眼患者69例138眼。利用光学相干断层扫描(optical coherence tomography,OCT)对所有患者术前及术后1d; 1wk; 1,3,6mo的黄斑部视网膜进行检查,分别测量以黄斑中心凹为中心直径0.5mm区域、直径1.5mm区域及直径3mm区域的上方、鼻侧、下方、颞侧9个区域的视网膜平均厚度及容积。

结果：以黄斑中心凹为中心直径1.5mm内(A1,A2,A3,A4)术后1d; 1wk的视网膜厚度及容积均低于术前,术后1,3,6mo同术前比较无明显差异。以黄斑中心凹为中心直径0.5mm内(A0)以及直径3mm内的区域(A5,A6,A7,A8)术后1d; 1wk; 1,3,6mo同术前比较无明显差异。

结论：常规LASIK术后所出现的部分区域黄斑部视网膜厚度的改变是轻微可逆的。