非动脉炎性前部缺血性视神经病变患者急性期视盘周围脉络膜血流信号分析

目的　利用光学相干断层扫描血管成像（OCTA）观察非动脉炎性前部缺血性视神经病变（NAION）患者急性期的视盘周围脉络膜血流信号特征。方法　对2017年1月至2019年9月首次确诊为NAION且接受OCTA检查的13例（13眼）患者进行回顾性横断面研究。由两位医师分别定性分析OCTA中脉络膜毛细血管层的血流信号中的低信号区,并分区。将分区的结果与en face OCT、视野检查结果进行对比。患者均至少随访1个月。结果　急性期NAION患眼的视盘OCTA在脉络膜毛细血管层水平的低信号区可分为视盘本身部位、视盘水肿部位和沿神经纤维方向延伸部位3个区域。13眼中,10眼首次就诊时出现3个低信号区,2眼在第2次就诊时出现3个低信号区,1眼仅出现视盘本身部位和视盘水肿部位的低信号区。其中,沿神经纤维方向延伸部位的低信号区与视野缺损关系密切,对应比例达91.6%,该低信号区平均出现时间为发病后19.9 d。随访期内,9眼沿神经纤维方向延伸部位的低信号区出现神经纤维层萎缩。结论　NAION患者急性期的视盘周围脉络膜层面的血流信号可以通过OCTA提示神经纤维层水肿、消退以及萎缩的变化过程。     

OCT测量的黄斑区GCC和视盘RNFL厚度对前部缺血性视神经病变诊断效能的评估

背景 前部缺血性视神经病变(AION)是常见的眼部病变,预后较差,其早期诊断对视力预后至关重要.频域光相干断层扫描(FD-OCT)能在活体实时显示视网膜组织的细微结构,可定量测量黄斑区神经节细胞复合体(GCC)及视盘神经纤维层厚度(RNFL)厚度.以往的研究多用视盘RNFL厚度来评估AION患者视网膜神经节细胞(RGCs)的丢失情况,近期研究显示GCC厚度可检测出AION患者视网膜结构变化,但鲜见视盘RNFL厚度和GCC厚度对AION诊断效能的比较研究. 目的 评估OCT测量的GCC和RNFL对AION的诊断效能.方法 采用诊断试验研究方法,于2013年12月至2014年7月纳入在天津医科大学眼科医院就诊的AION患者15例15眼,同期纳入天津医科大学眼科医院职工及门诊就诊的年龄和性别匹配的正常对照者14人14眼,采用频域OCT测量黄斑区GCC厚度及视盘RNFL厚度,黄斑区GCC厚度测量指标包括黄斑区周围6mm×6mm范围上方、下方GCC厚度和平均GCC厚度,计算局部丢失体积(FLV)和整体丢失体积(GLV);视盘RNFL厚度测量指标包括视盘上方、下方及平均RNFL厚度,比较AION组与正常对照组间检测结果的差异.采用受试者工作特征(ROC)曲线下面积(AUC)评估FD-OCT测量的黄斑区GCC厚度及视盘RNFL厚度对AION的诊断效能.结果 与正常对照组比较,AION组受检眼黄斑区上方、下方及平均GCC厚度均明显薄于正常对照组,差异均有统计学意义(t=-3.402,P=0.002;t 2.690,P=0.012;t=2.913,P=0.007);AION组受检眼FLV值和GLV值分别为(8.39±4.54) μm3和(19.57±10.66) μm3,明显低于正常对照组的(0.64±0.48) μm3和(1.14±0.91) μm3,差异均有统计学意义(t=5.036、6.723,均P＜0.01).AION组受检眼视盘上方、下方及平均RNFL厚度较正常对照组均明显变薄,差异均有统计学意义(t=2.815,P=0.009;t=2.392,P=0.024;t=2.863,P=0.008).AION眼测量的FLV和GLV的AUC值均为1.000,黄斑区上方、平均GCC厚度及下方GCC厚度AUC依次为0.871、0.819和0.795,视盘平均RNFL厚度及视盘上方、下方RNFL厚度AUC依次为0.814、0.809和0.762. 结论 OCT测量的GCC厚度和RNFL厚度在AION诊断能力中具有可比性,FLV和GLV在AION患者的神经节细胞层检测方面能力较强,黄斑区GCC厚度与RNFL厚度测量在AION的诊断中可互为补充.     

非动脉炎性前部缺血性视神经病变光相干断层扫描研究

目的 探讨非动脉炎性前部缺血性视神经病变(non-arteritic anterior ischemic optic neuropathy,NAION)患眼远期视盘周围视网膜神经纤维层(retinal nerve fiber layer,RNFL)厚度及其与视野检查结果的相关性.方法 回顾性病例对照研究.对2007年8月至2009年8月在无锡市,第二人民医院眼科21例单眼发病NAION患者42只眼(21只发病眼为实验组,21只对侧正常眼为对照组)进行了视网膜神经纤维层厚度的光学相干断层扫描(optical coherence tomography,OCT),并检查视野(visual field,VF)、图形视觉诱发电位(pattern-reversal visual evoked potential,P-VEP)等检查.结果 NAION患者RNFL厚度较对照组变薄,上半侧易受累,相应下方视野缺损多见,且视盘非病变区域的RNFL厚度也比正常对照组相应区域变薄.平均RNFL厚度与视野平均缺损有相关性(r=0.38,P ＜0.05).结论 NAION患者远期盘周视神经纤维层厚度变薄,缺血区明显变薄,OCT检查非缺血区的RNFL厚度也变薄,提示NAION的RNFL丢失可能超过了视野检查的视野缺损的范围.NAION患眼盘周RNFL厚度与视野检查结果相关.     

非动脉炎性前部缺血性视神经病变的危险因素和远期变化

目的通过研究非动脉炎性前部缺血性视神经病变(nonarteriticanteriorischemicopticneuropathy,NAION)发病的危险因素和视网膜神经纤维层(retinalnervefiberlayer,RNFL)损伤的远期变化,提高对NAION的诊断和治疗效果。方法 采用前瞻性对照研究的方法,收集50例(50眼)确诊为NAION的患者,同时选取50例(50眼)排除其他疾病的视疲劳患者作为对照,行血压、空腹血糖、血脂、眼压、视野及光学相干断层扫描(opticalcoherencetomography,OCT)检查,观察收缩压、舒张压、空腹血糖、总胆固醇、甘油三酯、眼压及视盘结构参数,并比较对照组和NAION患者发病后6个月、12个月、18个月上方、鼻侧、下方、颞侧、全周平均RNFL厚度的差异。结果 与对照组比较,NAION患者收缩压、舒张压、空腹血糖、总胆固醇、眼压、盘沿面积差眼科新进展 2014年7月 第34卷 第7期异均无统计学意义(均为P>0.05),而甘油三酯为(2.14±1.46)mmolL-1,较对照组的(1.56±0.86)mmolL-1升高,差异有统计学意义(P<0.05),视盘面积(1.99±0.34)mm2、视杯面积(0.32±0.31)mm2、杯/盘面积比(0.17±0.18)、水平杯盘比(032±0.16)、垂直杯盘比(0.28±012)均显著小于对照组,差异均有统计学意义(均为P<0.05);与对照组比较,NAION患者发病后6个月、12个月、18个月上方、鼻侧、下方、颞侧、全周平均RNFL厚度均变薄,差异均有统计学意义(均为P<0.05);但是,与NAION发病后6个月比较,发病后12个月、18个月上方、鼻侧、下方、颞侧、全周平均RNFL厚度均无明显变化,差异均无统计学意义(均为P>0.05)。NAION发病后6个月、12个月、18个月的RNFL损伤百分比分别是29.8%、31.0%、32.3%,三组间差异均无统计学意义(均为P>0.05)。结论 甘油三酯、小视杯、浅视杯、小视盘是NAION发病的危险因素;一旦确诊为NAION,那么发病6个月后RNFL损伤将不再进一步加重;这对在NAION的诊断、早期治疗及后续治疗中采取相应措施具有重要意义。     

非动脉炎性前部缺血性视神经病变模型大鼠视网膜蛋白质组学定量分析

目的:分析非动脉炎性前部缺血性视神经病变（NAION）模型大鼠视网膜蛋白质表达变化。方法:Sprague-Dawley大鼠20只,随机分为NAION动物（rNAION）模型组、单纯激光照射组、单纯光敏剂孟加拉玫瑰红（RB）组（单纯光敏剂RB组）、正常对照组,每组各为5只,均以右眼为实验眼。采用光动力疗法建立rNAION...     

非动脉炎性前部缺血性视神经病变视盘形态学定量研究

目的 研究非动脉炎性前部缺血性视神经病变(NAION)视盘形态结构特征,探讨 NAION 的发病机制.方法 应用海德堡视网膜断层扫描仪(HRT)对71例NAION患者对侧未发病眼及69名正常人随机选择一眼的视盘进行检测,对NAION患者和正常人的视盘参数进行比较分析.结果 NAION组视盘面积,视杯面积,杯盘面积比,平均视杯深度,最大视杯深度,视杯形态测量均小于正常对照组(P<0.05. NAION患者与正常组盘沿面积无差异(P>0.05. NAION组杯盘面积比小于等于0.2占91.5%,而对照组占40.6%,其中NAION组无视杯为14例,对照组仅为1例,NAION组无视杯的发生率明显高于对照组;两组杯盘面积比分布的差异具有统计学意义(P<0.05).结论 小视盘,小视杯及浅视杯是NAION患者视盘的形态学特点,也是导致NAION的解剖基础.     

非动脉炎性前部缺血性视神经病变治疗进展

非动脉炎性前部缺血性视神经病变(nonarteritic anterior ischemic optic neuropathy,NAION)是全身血管危险因素及局部解剖因素等多因素共同参与的、发病机制复杂的视神经缺血性疾病.控制全身危险因素是治疗关键.目前三大治疗尝试包括改善循环(如眼压干预、体外反搏、手术),减轻视盘...     

糖尿病性视网膜病变患者前部缺血性视神经病变临床分析

目的:了解糖尿病性视网膜病变(diabetic retinopathy,DR)患者群体中,前部缺血性视神经病变(anterior ischemicop-tic neuropathy,AION)的发病情况,进一步探讨AION与糖尿病及DR的可能关系,指导临床诊治。方法:选择需行全视网膜激光光凝治疗的DR患者515例,根据是否同时伴有AION分为AION组(DR合并AION组)和对照组(单纯DR组),行眼部及全身检查,对比分析两组间可能存在的差异。结果:两组患者的性别比例、年龄构成、DR分期无差异,视盘形态、屈光状态、眼内压无差异,血糖、血脂、血压水平无差异。结论:糖尿病可作为AION的独立危险因素,而高血压不是。     

大鼠非动脉炎性前部缺血性视神经病变模型视神经蛋白质组学分析

目的:定量分析SD大鼠非动脉炎性前部缺血性视神经病变(NAION)模型中视神经组织蛋白表达变化,并对差异蛋白进行生物信息学分析。方法:选取10只8周龄体质量200~250 g的SPF级雄性SD大鼠,采用孟加拉玫瑰红联合激光光动力方法建立NAION模型,最终选取4只造模成功的大鼠作为NAION模型组,同时取4只体质量和周...     

非动脉炎性前部缺血性视神经病变

前部缺血性视神经病变是临床上常见的急性眼病.其病因复杂,治疗方法多样,疗效报道不一,作者多年临床数项观察,并结合国内外研究进展,对其诊断、病因病机、治疗、预后及预防和研究展望做系统论述.     

Time Course of Macular and Peripapillary Inner Retinal Thickness in Non-arteritic Anterior Ischaemic Optic Neuropathy Using Spectral-Domain Optical Coherence Tomography

To report a time course of the ganglion cell complex (GCC) and circumpapillary retinal nerve fibre layer (cpRNFL) thicknesses using spectral-domain optical coherence tomography in patients with non-arteritic anterior ischaemic optic neuropathy (NAION), five patients with unilateral NAION were studied (the average age of 66.8 ± 7.8 years old). Forty-one age-matched normal controls were also enrolled. The GCC and cpRNFL thicknesses were measured at the initial visit and at 1, 3, 6, and 12 months using RTVue-100. The GCC thickness and the cpRNFL thickness of the patients were compared with those of the normal controls. The GCC thickness in the NAION patients was 96.49 μm at the initial visit, 84.28 μm at 1 month, 74.26 μm at 3 months, 71.23 μm at 6 months, and 69.51 μm at 12 months. The values at 1, 3, 6, and 12 months were significantly reduced (p < 0.01). The cpRNFL thickness at the initial visit was significantly increased, whereas the values at 6 and 12 months were significantly reduced (p < 0.01). The GCC thickness is more useful for the detection of retinal ganglion cell loss at an early stage than the cpRNFL thickness, because the GCC thickness is unaffected by optic disc swelling at the initial visit, unlike the cpRNFL thickness.     

Ischemic Optic Neuropathy

Anterior ischemic optic neuropathy (AION) is a common cause of visual loss in patients over 50 years of age. Optical coherence tomography has provided new information which may have implications regarding future approaches to management.     

Follow-Up of Nonarteritic Anterior Ischemic Optic Neuropathy With Optical Coherence Tomography Angiography

PurposeThe purpose of this study was to describe capillary changes in patients with nonarteritic anterior ischemic optic neuropathy (NAION) using optical coherence tomography-angiography (OCT-A) and correlate the results with best corrected visual acuity (BCVA), visual field, OCT retinal nerve fiber layer (RNFL), and combined thickness of ganglion cell and inner plexiform layers (GCIPL) thicknesses.MethodsWe enrolled 22 eyes with acute NAION and 30 normal control (NC) subjects in this study. Whole en face image vessel density (WiVD) was measured in the radial peripapillary capillary plexus (RPC), superficial capillary plexus (SCP), and deep vascular complex (DVC) using OCT-A. The examination was repeated at 1 (M1), 3 (M3), 6 (M6), and 9 (M9) months after presentation for NAION.ResultsThe initial RPC WiVD was significantly reduced in the acute NAION group compared to the NC group (P < 0.0001). Over the course of NAION follow-up, RPC WiVD was significantly reduced at M1 (P < 0.001 compared to M0) and M3 (P < 0.0001 compared to M1). However, there was no significant further decrease at M6 and M9. The initial SCP WiVD was significantly reduced in the NAION group compared to the NC group (P < 0.0001 for both). Over the course of NAION follow-up, a significant decrease was observed for SCP WiVD at M1 (P < 0.001 compared to M0), but no significant change was seen at M3, M6, or M9. DVC was normal in the NAION group. Correlations were found between GCIPL and SCP WiVD in the NAION acute phase (R = 0.604, P = 0.003) and in the M9 atrophic stage (R = 0.551, P = 0.009). At M9, RPC WiVD was correlated with BCVA (R = −0.562, P = 0.007), mean deviation (R = 0.518, P = 0.01), and RNFL (R = 0.655, P = 0.001).ConclusionsOver the course of NAION, OCT-A provided detailed visualization of retinal capillary plexus involvement.     

Treatment of Nonarteritic Anterior Ischemic Optic Neuropathy

Nonarteritic anterior ischemic optic neuropathy (NAION) is the most common clinical presentation of acute ischemic damage to the optic nerve. Most treatments proposed for NAION are empirical and include a wide range of agents presumed to act on thrombosis, on the blood vessels, or on the disk edema itself. Others are presumed to have a neuroprotective effect. Although there have been multiple therapies attempted, most have not been adequately studied, and animal models of NAION have only recently emerged. The Ischemic Optic Neuropathy Decompression Trial, the only class I large multicenter prospective treatment trial for nonarteritic anterior ischemic optic neuropathy, found no benefit from surgical intervention. One recent large, nonrandomized controlled study suggested that oral steroids might be helpful for acute NAION. Others recently proposed interventions are intravitreal injections of steroids or anti-vascular endothelial growth factor (anti-VEGF) agents. There are no class I studies showing benefit from either medical or surgical treatments. Most of the literature on the treatment of NAION consists of retrospective or prospective case series and anecdotal case reports. Similarly, therapies aimed at secondary prevention of fellow eye involvement in NAION remain of unproven benefit.     

Acute Unilateral Anterior Ischemic Optic Neuropathy Secondary to Optic Nerve Head Drusen: Report of a Rare Coexistence

A 45-year-old white male noticed on awakening the painless loss of inferior vision in the left eye 2 days ago. He was otherwise well and his medical history was unremarkable. Visual acuity was 20/20 in OD and 20/32 in OS with a left inferior altitudinal defect and right blind spot enlargement demonstrable on visual field test. On fundus examination, both disc margins were blurred and the left disc was diffusely oedematous, with linear haemorrhages in the adjacent nerve fibre layer. Radiologic imaging and laboratory tests were unremarkable. Bilateral optic nerve head drusen (ONHD) was demonstrated by optical coherence tomography and fundus autofluorescence imaging. Unilateral acute non-arteritic anterior ischemic optic neuropathy (NAION) and concomitant bilateral ONHD were diagnosed. NAION may develop secondary to ONHD. Therefore, clinicians should be aware of this rare association and inform the patients about this risk. Patients with ONHD should be followed-up periodically in terms of possible ischemic complications.     

Posterior Pole Retinal Thickness for Detection of Structural Damage in Anterior Ischaemic Optic Neuropathy

Abstract

This objectives of this study were to compare posterior pole retinal thickness (PPRT) and peripapillary retinal nerve fibre layer thickness (RNFLT) between the affected eyes of patients with previous nonarteritic anterior ischaemic optic neuropathy (NAION) and their unaffected eyes and to assess the structure-function relationship. Eighteen eyes with NAION and 14 contralateral unaffected eyes were included in this cross-sectional study. Humphrey visual field (VF) sensitivities were obtained. RNFLT (six sectors) and PPRT (four quadrants) were measured with spectral-domain optical coherence tomography (Spectralis; Heidelberg Engineering, Heidelberg, Germany). These parameters were compared between both eyes of patients with unilateral NAION. The correlation of RNFLT and PPRT with VF mean sensitivity (MS) values (linear units) was also analysed. The main outcome measure was the correlation of MS values with PPRT and RNFLT. A significant difference existed between the affected eyes and the unaffected fellow eyes in the MS values, all sectors of RNFLT, and all quadrants of PPRT. A significant linear correlation was observed between RNFLT and PPRT and corresponding MS values in global and regional measures. The strongest correlation was between inferior temporal VF and its corresponding superior nasal retinal quadrant thickness. The area under the receiver operator characteristic curves comparing superior nasal PPRT and RNFLT between the normal and affected eyes was 0.97 and 0.96, respectively. The results show that PPRT and RNFLT provide equivalent performance to detect structural damage in ischaemic optic neuropathy.     

Choroidal Thickness in Nonarteritic Anterior Ischaemic Optic Neuropathy: A Study with Optical Coherence Tomography

Nonarteritic anterior ischemic optic neuropathy (NA-AION) is the most common nonglaucomatous optic neuropathy in adults over 50 years of age. It is usually related to cardiovascular risk factors. The primary objective of this study was to evaluate choroidal thickness in patients with chronic NA-AION, and the secondary objective was to evaluate macular thickness in these patients. This cross-sectional study compared two groups: group 1 included 20 eyes of 20 patients with chronic NA-AION, and group 2 included 31 eyes of 31 healthy controls. In both groups, the choroidal thickness was measured using the enhanced depth imaging program of Heidelberg Spectralis® optical coherence tomography (Heidelberg Engineering, Heidelberg, Germany). The macular thickness was also measured using the automatic software of the same device. The mean follow-up time after NA-AION in group 1 was 57.17 ± 26.92 months. The mean choroidal thickness of the posterior pole was 244.38 ± 61.03 µm in group 1 and 214.18 ± 65.97 µm in group 2 (p = 0.004). The mean macular thickness was higher in group 2. Macular thickness is reduced in eyes that had an episode of NA-AION, whereas choroidal thickness is generally higher in these eyes when compared with normal eyes. The increase in choroidal thickness may be due to a local dysfunction in vascular autoregulatory mechanisms, which may predispose to ischemic phenomena.     

Choroidal Thickness in Nonarteritic Anterior Ischaemic Optic Neuropathy: A Study with Optical Coherence Tomography

Abstract

Nonarteritic anterior ischemic optic neuropathy (NA-AION) is the most common nonglaucomatous optic neuropathy in adults over 50 years of age. It is usually related to cardiovascular risk factors. The primary objective of this study was to evaluate choroidal thickness in patients with chronic NA-AION, and the secondary objective was to evaluate macular thickness in these patients. This cross-sectional study compared two groups: group 1 included 20 eyes of 20 patients with chronic NA-AION, and group 2 included 31 eyes of 31 healthy controls. In both groups, the choroidal thickness was measured using the enhanced depth imaging program of Heidelberg Spectralis® optical coherence tomography (Heidelberg Engineering, Heidelberg, Germany). The macular thickness was also measured using the automatic software of the same device. The mean follow-up time after NA-AION in group 1 was 57.17?±?26.92 months. The mean choroidal thickness of the posterior pole was 244.38?±?61.03?µm in group 1 and 214.18?±?65.97?µm in group 2 (p?=?0.004). The mean macular thickness was higher in group 2. Macular thickness is reduced in eyes that had an episode of NA-AION, whereas choroidal thickness is generally higher in these eyes when compared with normal eyes. The increase in choroidal thickness may be due to a local dysfunction in vascular autoregulatory mechanisms, which may predispose to ischemic phenomena.     

角膜电刺激对糖尿病大鼠前部缺血性视神经病变模型的影响

观察并评估角膜电刺激对糖尿病大鼠前部缺血性视神经病变（AION）模型的影响。方法：实验 研究。健康雄性Sparague-Dawley大鼠40只，随机分组后抽出8只作为正常大鼠组。余下32只先予 以链脲佐菌素腹腔注射建立糖尿病大鼠模型，将造模成功的大鼠随机抽出8只作为糖尿病组，余下 24只糖尿病大鼠采用孟加拉玫瑰红联合532 nm激光方法建立AION大鼠模型。将24只造模成功的 AION大鼠随机分成3组，每组8只，分别为AION模型组，不予任何处理；电刺激组，予以角膜电刺 激（刺激参数为：电流1 mA，频率20 Hz，波宽1 ms/phase，刺激时间1 h，隔日1次，刺激2周）；假电 刺激组，电极安放位置与电刺激组相同，仅不接通电源。2周后5组大鼠进行眼底照相、光学相干断 层扫描和视觉诱发电位，然后处死，行视网膜及视神经冰冻切片，苏木精伊红染色观察。数据采用 单因素方差分析和LSD-t检验进行分析。结果：正常大鼠组视盘上半部视网膜厚度为（211±13）μm， 糖尿病大鼠组为（206±16）μm，AION模型组为（240±54）μm，假电刺激组为（216±11）μm，电刺 激组为（198±4）μm，5组视盘上半部视网膜厚度差异有统计学意义（F=2.854，P=0.038）。其中AION 模型组视盘上半部视网膜厚度高于正常组、糖尿病组、电刺激组，差异均有统计学意义（P<0.05）； 正常组与糖尿病组差异无统计学意义，AION模型组与假电刺激组未见明显差异。视觉诱发电位示 AION模型组N1潜伏期较电刺激组延长，差异有统计学意义（t=4.1，P<0.001）；AION模型组P1潜伏 期较正常组、糖尿病组、假电刺激组、电刺激组延长，差异均有统计学意义（t=4.1、2.5、2.6、3.2， P<0.05）；电刺激组N1-P1波幅大于假电刺激组，差异有统计学意义（t=4.0，P<0.001）。结论：角膜电 刺激能促进糖尿病大鼠前部缺血性视神经病变模型肿胀的视盘变薄，加速视盘水肿的消退，同时在 一定程度上改善视功能。     

Serum Inflammatory Biomarkers in Patients with Nonarteritic Anterior Ischemic Optic Neuropathy

PurposeTo evaluate the neutrophil-to-lymphocyte ratio (NLR), monocyte-to-lymphocyte ratio (MLR), platelet-to-lymphocyte ratio (PLR), and systemic immune-inflammation index (SII) in patients with non-arteritic anterior ischemic optic neuropathy (NAION).MethodsFifty-six patients with NAION and 60 age-sex matched healthy controls were included in the study. Demographic characteristics and laboratory findings of the patients and the controls were obtained from the electronic medical records. NLR, PLR, MLR, and SII were calculated and compared between the groups. Cutoff values were also determined.ResultsNeutrophil, monocyte and platelet counts were higher in the NAION group than in the control group, but the difference was not statistically significant (p > 0.05). The mean NLR and SII were higher in the NAION group than in the control group (p = 0.004 and p = 0.011, respectively). In the receiver operating characteristic curve analysis, the areas under the curve for NLR were 0.67, and NLR >1.79 predicted NAION with a sensitivity of 71% and specificity of 59%. The areas under the curve for SII was 0.66, and SII of >417 predicted NAION with a sensitivity of 71% and specificity of 49%. There was no significant difference in PLR and MLR between the groups (p = 0.105 and p = 0.347, respectively).ConclusionsThe current study demonstrated that NAION patients had increased NLR and SII levels compared with control subjects. Elevated NLR and SII might serve as readily available inflammatory predictors in NAION patients.