眼表菌群是定植于眼表的各种微生物群落，以细菌为主。在正常情况下，眼表菌群与人体眼表组织的细胞和平共生，维持眼表的稳态，共同保证眼表的健康。但在环境改变或免疫力低下的情况下，眼表菌群会发生变化，与眼部疾病的产生与发展关系密切，对人类的健康造成巨大的危害。随着组学研究的不断发展，我们对眼表菌群有了新的认识，为眼表疾病的发病机制、治疗开辟了新的思路，同时也提出了新的挑战。本文对国内外眼表菌群与疾病关系进行综述，为眼表疾病的发生、发展以及治疗提供参考。

The microbiome of the ocular surface consists of various microbial communities that colonize on the eye surface, mainly bacteria. The stabilization of the microbiome and the other ocular surface components plays an important role in maintaining the homeostasis of the ocular surface. However, unpredictable changes of ocular surface microbiome are strongly associated with ocular surface diseases in the situation of environmental changes or destruction of immune system. With the innovation of inspection technology, the current gene sequencing technology is applied to detect the ocular surface microbiome and confirm that the eye microbiome is closely related to ocular surface diseases. This paper investigates the corelation of ocular surface microbiomes and diseases. Moreover, we provide areference for the occurrence and development of ocular surface diseases and their treatment.

越来越多的证据表明，空气污染可严重损害人体健康，成为全球疾病负担的主要原因。并且污染空气中的主要成分空气颗粒物可渗透到肺部和心血管系统，引起缺血性心脏病、肺炎、慢性阻塞性肺疾病甚至肺癌，导致空气污染相关的发病率和死亡率升高。城市颗粒物作为城市居住人群面临的主要空气污染问题，被证实与多种炎症性眼表疾病密切相关，如过敏性结膜炎、角膜炎、干眼等。高浓度城市颗粒物暴露还会引起睑板腺病理性结构改变和功能异常，诱发炎性睑板腺功能障碍。文章综述了城市颗粒物相关的眼表疾病类型及其致病机制的最新研究，旨在阐明空气污染对于眼表组织的损害和相应的潜在治疗靶点，指导临床上环境相关眼病的诊断与治疗。

More and more evidence indicate that air pollution can seriously damage human health and become a major cause of the global disease burden. The main component of air pollution, particulate matter, can penetrate the lungs and cardiovascular system, causing ischemic heart disease, pneumonia, chronic obstructive pulmonary disease, and even lung cancer, leading to an increase in the incidence and mortality rates related to air pollution. Urban particulate matter, as the main air pollution problem faced by urban residents, has been shown to be closely related to various inflammatory eye diseases, such as allergic conjunctivitis, keratitis, and dry eye. Our research further confirms that exposure to high concentration of urban particulate matter can also cause pathological structural changes and functional abnormalities in the meibomian gland, leading to inflammatory meibomian gland dysfunction. This review comprehensively summarizes the latest research on the eye surface diseases related to urban particulate matter and their pathogenic mechanisms, aims to elucidate the damage of air pollution to eye surface tissues, identify potential therapeutic targets, and guide the diagnosis and treatment of environmentally related eye diseases in clinical practice.

甲状腺相关眼病是一种器官特异性自身免疫性疾病，其发病机制复杂，是成人最常见的眼眶疾病，且发病率逐年升高。该病不仅会导致眼球突出、眼睑退缩、睑裂扩大、眼球运动障碍等外观上的变化，且患者往往伴发眼红、眼痛、干涩、异物感、复视、视力下降等不适症状，其中眼表疾病的发病率较正常人明显增高，但其具体发病机制尚待进一步挖掘。目前研究表明甲状腺相关眼病患者的眼表损伤主要与眼表暴露增加、炎症侵犯、激素改变有关。角膜、结膜、泪膜、睑板腺等组织受累发生病理改变是患者表现出不同临床症状的直接原因。文章通过分析近年来国内外关于甲状腺相关眼病与眼表疾病等方面的相关研究，针对甲状腺相关眼病眼表损伤的病理改变及机制研究进展做一综述。

Tyroid-associated ophthalmopathy is an organ-specifc autoimmune disease with complex pathogenesis. It is the most common orbital disease in adults, and its incidence increases year by year. Tis disease can not only lead to appearance changes such as eyeball protrusion, eyelid retraction, eyelid cleat enlargement, eye movement disorders, and patients are ofen accompanied by red eyes, eye pain, dryness, foreign body sensation, diplopia, vision loss and other uncomfortable symptoms, among which the incidence of ocular surface diseases is signifcantly higher than that of normal people, but its specifc pathogenesis needs to be further explored. Current studies have shown that ocular surface injury in patients with thyroid-associated ophthalmopathy is mainly related to increased ocular surface exposure, infammatory invasion, and hormonal changes. Te pathological changes of cornea, conjunctiva, tear flm, meibomian gland and other tissues involved are the direct causes of different clinical symptoms of patients. In this paper, through the analysis of recent domestic and foreign studies on thyroid-associated ophthalmopathy and ocular surface diseases, the pathological changes and mechanism of ocular surface injury in thyroid-associated ophthalmopathy were reviewed.

目的：探讨胬肉切除联合自体角膜缘干细胞移植治疗翼状胬肉的远期效果。

方法：2003年12月－2008年12月在我院就诊的原发性翼状胬肉患者55例57眼，均采用胬肉切除联合自体角膜缘干细胞移植治疗，术后随访2～8年，平均5.3年。观察创面愈合情况、治疗效果和并发症情况。

结果：术后早期患者均有不同程度的充血、水肿和异物感，3～5d 后症状逐渐减轻，一周左右完全消失。角膜创面完全上皮化时间为4～7d，平均4.83d。术后有持续性眼表刺激症状者7例，术后残留纤维组织者1例，角膜浅层瘢痕者4例。术后随访2～8年，平均5.3年，复发8例8眼 (复发率13.11％)。术后1年时复查OSDI 评分，所有患者较术前评分均有不同程度的降低，与术前相比，两组评分和构成比差异有统计学意义(P＜0.05)。术后5年时复查OSDI评分较1年前稍有降低，但差异没有统计学意义(P＞0.05)。术后1、5年时泪液基础分泌[(12.95±4.03) mm，(12.68±4.77) mm]和泪膜破裂时间 [(10.55±4.13)s, (10.03±4.64) s] 较术前[(9.48±3.34)mm，(8.14±3.57)s] 明显改善，差异有统计学意义(P＜0.05)。

结论：应用胬肉切除联合自体角膜缘干细胞移植治疗翼状胬肉，术后早期症状轻、消失快，远期复发少，效果良好。

Purpose: To evaluate the long-term efficacy of pterygium excision combined with autologous corneal limbal stem cell transplantation in the treatment of pterygium．

Methods: Fifty five patients (57 eyes) diagnosed with primary pterygium undergoing pterygium excision combined with autologous corneal limbal stem cell transplantation between December 2003 and December 2008 were enrolled in this study. Postoperative follow-up endured for 2-8 years, 5.3 years on average. The wound healing, clinical efficacy and postoperative complications were observed．

Results: During early stage after surgery, all patients presented with varying degree of hyperemia, edema and sense of foreign body, which were gradually mitigated 3-5 d later and completely recovered in approximately 1 week. The corneal wound was completely epithelized within 4-7 d, 4.83 d on average. Seven patients had persistent ocular surface irritation symptoms after surgery, one case had residual fibrous tissues and four patients developed superficial corneal scars. Postoperative follow-up endured for 2-8 years, 5.3 years on average. Eight patients (8 eyes) recurred with a recurrence rate of 13.11％. In all patients,  postoperative OSDI score was significantly decreased at 1-year reexamination. OSDI score and constitution ratio significantly differed between two groups (both P＜0.05)．At postoperative 5 years, OSDI score was slightly lower compared with that in last year with no statistical significance(P＞0.05)．At post operative 1- and 5-year, basic tear secretion was (12.95 ±4.03) mm and (12.68 ±4.77) mm, tear film break-up time was (10.55±4.13)s and (10.03±4.64)s. Both indexes were significantly improved compared with (9.48±3.34) mm and (8.14±3.57)s before surgery (all P＜0.05)．

Conclusion: Pterygium excision combined with autologous corneal limbal stem cell transplantation is an efficacious treatment of pterygium with mild postoperative symptoms, rapid recovery, low long-term recurrence rate and high efficacy． 

目的: 比较新鲜羊膜和保存羊膜治疗睑球粘连的疗效差异, 分析影响疗效的因素。

方法: 共 51 例 55 只眼因陈旧性化学伤、热烧伤或 Stevens-Johnson 综合征而发生睑球粘连的临床连续病例接受睑球粘连分离联合新鲜羊膜移植(22 只眼) 或保存羊膜移植(33 只眼) 。其中男 30 例 32 只眼, 女 21 例 23 只眼。年龄 4～51 岁, 平均(34.2 ± 4.3) 岁。其中 11 只眼在烧伤后5～11个月, 平均(7.4 ± 1.6) 个月时接受手术, 40 只眼在烧伤后 1～8 年, 平均(2.0 ± 0.7) 年进行手术。

结果: 术后随访 12～32 个月, 平均(19.3 ± 4.1) 个月 。所有移植在结膜眼表面的羊膜(包括新鲜羊膜) 植片在术后早期均未见溃烂和溶解, 周边对合良好。31/55(56.4%) 只眼形成了足够深的穹窿部且恢复了眼球运动功能。9/55(16.4%) 只眼发生部分睑球粘连, 眼球运动轻度受限,但其面积远较术前为小。15 /55(27.3%) 眼术后发生中度以上的睑球粘连。新鲜羊膜和保存羊膜重建眼结膜表面的效果相似( X ² = 0.466, P = 0.797) ; 不同程度睑球粘连的患者其羊膜移植术后的效果不同(新鲜羊膜, X²=27.995, P=0.000; 保存羊膜, X²=33.610, P=0.000) ; 在眼表烧伤后1年内手术比 1 年以上进行羊膜移植的效果也不同(X ²= 4.243, P = 0.039) 。

结论: 新鲜羊膜和保存羊膜一样可以有效地用于重建睑球粘连解除后的结膜眼表。患眼术前睑球粘连程度以及烧伤后其眼表炎症是否处于安静状态等因素都会直接影响羊膜移植重建眼结膜表面的远期疗效。

Purpose: To compare the effect of fresh versus preserved amniotic membrane transplant-ation for conjunctival surface reconstruction after symblepharon lysis and analyze the associated factors.

Methods: Fifty-one consecutive cases (55 eyes) with symblepharon at different degree due to eye burns or Stevens-Johnson syndrome were accepted lysis of symblepharon and amniotic membrane transplantation. Twenty-two eyes of them were performed with fresh amnion grafts, the others (33 eyes) with preserved human amniotic membrane. Eleven eyes were performed within 1 year and forty eyes in 1 to 8 years (mean value, 2.0 ± 0.7 years) after eye burns.

Results: The follow-up time varied from 12 to 32 months (mean value, 19.3 ± 4.1 months) . Fifty-six point four percent (31/55) eyes got enough deep conjunctival fornix and resolution of eye movement restrict. Sixteen percent of them (9/55) recurred less symblepharon and remained slightly eye movement restrict. Fifteen- five eyes of them (27.3%) recurred moderate symblepharon. The effects of surgery were similar between fresh and preserved AMT (X ² = 0.466, P = 0.797) . The effects of AMT for those patients with symblepharon at different degree had significant difference statistically (fresh amnions, X ²= 27.995, P = 0.000; preserved amnions, X ² =33.610, P = 0.000) . The same results were observed between those patients who were performed in different time periods after eye burns ( X ² = 4.243, P = 0.039) .

Conclusion: Fresh amnion has the same effect as preserved one for conjunctival surface reconstruction. The degree of symblepharon and the surgical environment of the ocular surface in the affected eye before surgery will influence the results of amniotic membrane transplantation for conjunctival surface reconstruction.

目的：探索斜视患者手术治疗后的眼表恢复状况。方法：选取2015年1月至2018年6月于如皋市广慈医院接受门诊手术治疗的92例水平性斜视患者为研究对象，共126眼，按照手术切口将患者分为3组，行角膜缘切口的42例52眼患者为A组，行跨肌止端切口的17例19眼患者为B组，行近穹窿切口的33例55眼患者为C组。再根据手术累及肌肉条数将患眼分为3组，行单条眼外肌的29眼手术者为单肌组，行2条眼外肌的42眼手术者为双肌组，行3条眼外肌的21眼手术者为三肌组。比较不同切口类型和肌肉累及数患者的眼表健康恢复时间。结果：A，B，C3组间首次泪膜破裂恢复时间、泪河高度时间差异有统计学意义(P<0.05)；A组首次泪膜破裂恢复时间(14.33±3.26) d和泪河高度时间(14.54±1.58) d显著低于B组和C组，差异具有统计学意义(F=4.876，P=0.032；F=4.612，P=0.036)。单肌组，双肌组及三肌组3组间首次泪膜破裂恢复时间、泪河高度时间差异有统计学意义(P<0.05)；单肌组的首次泪膜破裂恢复时间(13.42±3.57) d和泪河高度时间(8.65±1.62) d显著低于双肌组和三肌组，差异有统计学意义(F=4.975，P=0.028；F=5.024，P=0.025)。结论：手术累及的肌肉数和手术切口类型对术后眼表健康状况具有重要影响，近穹窿切口的手术方式和累及较少肌肉数量有助于患者术后眼部健康状况的恢复。

Objective: To explore the ocular surface recovery after surgical treatment of strabismus patients. Methods: A total of 92 patients (126 eyes) with strabismus who underwent surgery in our hospital from January 2015 to June 2018 were enrolled. The patients were divided into three groups according to the surgical incision, 42 patients (52 eyes)underwent limbal incision were in group A, 17 patients (19 eyes) underwent trans-muscle end-point incision in group B, and 33 patients (55 eyes) underwent proximal hernia incision in group C. According to the number of muscles involved in the operation, the sick eyes of patients were divided into three groups. The 29 eyes with a single extraocular muscle were a single muscle group, the 42 eyes with 2 extraocular muscles were a double muscle group, and the 21-eye treated with 3 extraocular muscles were a three-muscle group. The ocular surface health recovery time of patients with different incision types and muscle involvement were compared. Results: The first tear film rupture recovery time and tear river height time between group A, B, and C were significantly different,and the data were statistically significant (P<0.05); the first tear film rupture recovery time (14.33±3.26) d and tear river height time (14.54±1.58) d in group A were significantly lower than those in group B and C. The data were statistically significant (F=4.876, P=0.032; F=4.612, P=0.036). The first tear film rupture recovery time and tear river height time between the single, double and three muscle groups were significantly different, and the data were statistically significant (P<0.05); the first tear film rupture recovery time (13.42±3.57) d and tear river height time (8.65±1.62) d were significantly lower in the single muscle group than in the double muscle group and the third muscle group. The data were statistically significant (F=4.975, P=0.028; F=5.024, P=0.025). Conclusion:The number of muscles involved in the operation and the type of surgical incision have an important impact on the health of the ocular surface after surgery. The proximal ankle incision and less number of muscles involved would improve the postoperative recovery of eye health.

间充质干细胞由于其独特的自我更新和多向分化能力，成为了一种替代无效的常规治疗的新兴治疗方法。间充质干细胞通过免疫调节、促修复、抗新生血管机制和细胞替代作用在眼表疾病中发挥作用，而不同来源的间充质干细胞其作用机制也不完全相同。迄今为止，已有8项注册的间充质干细胞治疗的临床试验应用于干眼、角膜烧伤、圆锥角膜等眼表疾病。

Due to its unique self-renewal and multi-directional differentiation capabilities, mesenchymal stem cells (MSCs) have become an emerging therapy that replaces of ineffective conventional options in treating multiple diseases. It plays an important role in ocular surface illnesses through a variety of functions, including immunoregulation, promoting repairing, anti-angiogenesis mechanisms, and cell replacement. MSCs from different sources have different mechanisms.So far, 8 registered clinical trials of MSCs therapy have been applied to treat dry eye, ocular burn, keratoconus and other ocular surface diseases.

目的：分析新型冠状病毒肺炎疫情期间实时面对面线上教学(以“腾讯会议”教学为例)在医学教育中的利弊及其与医学生眼表疾病的相关性，为改进线上教育方案、预防干眼提供依据。方法：以中南大学湘雅医学院本科学生为研究对象，采用横断面研究的方法，使用问卷星收集数据，研究实时面对面线上教学的效果及对眼表疾病的影响。结果：共收集到131份有效数据，绝大多数学生(84.73%)认为实时面对面线上教学是有效的，96.18%的学生认为实时面对面线上教学达到或部分达到了学习的目的，但是实时面对面线上教学的师生互动与课堂氛围有待加强，另外网络设备问题也是实时面对面线上教学需要面对的问题。同时，调查显示实时面对面线上教学参与学生的干眼患病率达66.41%，家庭所在地、家庭人均月收入、使用设备、是否全程专注听课与干眼患病率之间无相关性。结论：新型冠状病毒疫情期间实时面对面线上教学在医学教育中是有效的，但是师生互动不足、课堂氛围不够活跃、网络连接不稳定是其主要问题。此外，实时面对面线上教学会增加干眼的发病率，需要提高护眼意识，积极预防。

Objective: To analyze the advantages and disadvantages of real-time face-to-face online teaching (taking “Tencent Conference” teaching as an example) in medical education and its correlation with ocular surface diseases during the COVID-19 pandemic, and to provide basis for improving online education programs and preventing dry eye. Methods: The undergraduate students of Xiangya School of Medicine of Central South University were selected as the research objects. The method of cross-sectional study was used to collect data using questionnaires to study the effect of real-time face-to-face online teaching and its impact on ocular surface diseases. Results: A total of 131 valid data were collected. Among them, the vast majority of students (84.73%) think real time face to face online teaching is effective, and 96.18% of the students believe that real-time face-to-face online teaching at least partly achieved the purpose of learning. However, the interaction between teachers and students and the classroom atmosphere of real-time face-to-face online teaching needs to be strengthened. In addition, network equipment is also a problem that real-time face-to-face online teaching needs to face. Meanwhile, the survey showed that the prevalence rate of dry eye among the students who participated in real-time face-to-face online teaching reached 66.41%, and there was no correlation between the incidence rate of dry eye and the location of family, the per capita monthly income of family, the equipment, and whether they paid full attention to the lectures. Conclusion: Real-time face-to-face online teaching is effective in medical education during COVID-19, but the main problems are insufficient teacher-student interaction, inactive classroom atmosphere and unstable Internet connection. In addition, real-time face-to face online teaching will increase the incidence of dry eye, so it is necessary to improve the awareness of eye protection and actively prevent it.