目的：探讨基于微信的图像存储和传输系统(picture archiving and communication system，PACS)教学在眼眶科规培医生中的教学效果及质量评价。方法：将中山眼科中心眼眶科轮训的66名规培医生分为A组(PACS组)与B组(微信+PACS组)。通过出科考核和问卷分析比较两组学生的教学效果及满意度。结果：B组学生的基础知识测试和阅片技能测试得分均显著高于A组(P<0.001，P=0.037)。教学效果自我评估量表显示B组学生对解剖结构位置的熟悉程度、影像学诊断、鉴别诊断能力、工作中解读CT或MRI图像的能力预判，以及对CT或MRI影像学的兴趣，明显优于A组(均P<0.001)。所有学生(100.00%)对这种教学模式感到非常满意。结论：在眼眶科住院医师规划化培训中应用基于微信的PACS教学模式能显著提高教学效果和满意度，提高教学质量。

Objective: To evaluate the application quality of picture archiving and communication system (PACS) based on WeChat in standardized resident training in orbital department. Methods: A total of 66 doctors trained in the Orbital Department of Zhongshan Ophthalmic Center were divided into group A (PACS group) and Group B (WeChat +PACS group). The quality and feedback of teaching of the two groups of students were compared through examination and questionnaire. Results: The scores of basic knowledges and reading skills of group B were significantly higher than those of group A (P<0.001, P=0.037). The self-assessment scale for teaching quality showed that the students in group B were superior to group A in understanding the position of anatomical structure, imaging diagnosis and differential diagnosis according to CT or MRI, interpreting CT or MRI images in the future, and interest in CT or MRI imaging (all P<0.001). All the students (100.00%) were very satisfied with this mode of teaching. Conclusion: The application of PACS based on WeChat in standardized resident training in orbital department can significantly improve the quality and satisfaction of ophthalmology teaching.

在晶状体纤维细胞分化的终末阶段，细胞核、线粒体、内质网及高尔基体等膜性细胞器会发生程序性的降解，这对晶状体透明性的维持至关重要。然而，晶状体细胞器降解过程的机制尚不明确。研究晶状体细胞器的降解过程可为阐明白内障的发病机制提供理论依据，也有望为晶状体再生提供新的干预靶点。本文就晶状体细胞器降解过程及其机制进行综述。

During terminal differentiation of lens fiber cells, nuclei and other organelles experience programmed elimination.This process is essential for the maintenance of lens transparency. However, the mechanisms underlying lens organelle degradation remain unclear. Identification of the mechanisms can provide a theoretical basis for elucidating the pathogenesis of cataract and is expected to reveal new intervention targets for lens regeneration. In this review, we discuss potential mechanisms and the process of lens organelle degradation.

目的：观察生物工程角膜应用于感染性角膜炎的治疗效果。方法：对成都爱迪眼科医院19例采用生物工程角膜治疗的感染性角膜病角膜植片存活状况、术后视力变化及并发症进行回顾性分析。与同期22例人来源供体角膜移植行术后排异对比。结果：在19例患者中，女9例(47.37%)，平均年龄53.32岁；病因中细菌性角膜炎7例(36.84%)，真菌性角膜炎8例(42.11%)，病毒性角膜炎4例(21.05%)。术前裸眼视力检查：光感3例(光定位准)，手动5例，眼前指数4例，3.0~3.9者7例。随访1~14个月未发生原发感染复发；植片成活18例(94.74%)，1例1月内植片溶解再手术(5.26%)。裸眼视力4.0~4.5者15例(78.95%)，3.0~4.0者3例(15.79%)，数指1例(5.26%)。远期(6~12个月以上)生物工程角膜移植术后角膜缘新生血管更易侵入，以植片缘环形浑浊为主。两组间排异差异无统计学意义(Mann-Whitney检验，P=0.736)。结论：生物工程角膜具有较好的人角膜结构替代功能，对未累及全层的感染性角膜疾病起到较好的结构和功能重建作用，恢复有用视力，缓解角膜供体来源不足，有一定推广意义。

Objective: To observe the outcomes of bioengineered cornea for lamellar keratoplasty in the infectious keratitis.Methods: A total of 19 cases with infectious keratitis treated by bioengineered cornea in Chengdu Aidi Eye Hospital were analyzed retrospectively. The results of graft survival, visual acuity and complications were collected.Rejection reaction was compared with 22 cases of human donor corneal lamellar keratoplasty during the same period. Results: In the 19 cases patients, 9 cases were women (47.37%) with the average age of 53.32 years. Among the pathogenic factors, 7 cases were bacterial keratitis (36.84%), 8 cases were fungal keratitis (42.11%) and 4 cases were viral (21.05%). The results of preoperative uncorrected visual acuity (UCVA) showed that 3 cases were light perception (accurate light positioning), 5 cases were hand moving, 4 cases were counting finger, and 7 cases were in the range of 3.0–3.9. In the follow-up, no case of primary infection recurrence occurred; 18 grafts survived except one case dissolved end with re-transplant by human donor. The postoperative UCVA of 15 cases (78.95%) were in the range of 4.0–4.5, 3 cases were in the range of 3.0–4.0 (15.79%), and 1 case of counting finger (5.26%). There was no significant difference in rejection action (P=0.736). In the follow-up more than 6–12 months, the limbal neovascularization of the biological engineering cornea is more likely to invade with the result of ring shape opacity at the graft edge. Conclusion: The biological engineering cornea can play a good role in the reconstruction for the cases with infectious keratitis. It provides another way to solve the shortage of corneal grafts.

研究生导师的能力和水平是影响研究生教育质量的最关键因素之一。针对眼科学研究生专业基础 知识薄弱、动手实践机会缺乏、创新能力不足，导师队伍教学主动性不强、活力欠佳等问题，中 山眼科中心逐步建立了“行政+专家”的双重教学管理架构，引导激励教师积极主动参与、推动研 究生课程改革、科研创新能力培训、教学信息化建设、教学质控与学生管理等各项教学改革与决 策，通过不断完善教师参与教学改革共同治理的长效机制，打造高素质的教师队伍，实现高质量 的眼科学研究生培养。

The ability and level of postgraduate tutor is one of the key factors affecting the quality of graduate education. In view of the weak basic ophthalmic knowledge, lack of practical opportunities and the inefficiency in innovation ability among ophthalmology graduates, as well as the lack of initiative and vitality in teaching team, Zhongshan Ophthalmic Center, Sun Yat-Sen University has been gradually established the dual management structure of “administration and experts”. By guiding and encouraging the teachers participate in the curriculum reform of graduates, scientific research ability training, management informatization, the teaching quality control, student administration and so on. Through improving the long-term mechanism of teachers’ participation in teaching reform governance, the quality of teachers has been improved, which promote the high-quality development of ophthalmology graduate education.

住院医师规范化培训(简称“住培”)是我国新医改的一项重要举措，旨在通过住培来使我国临床 整体医疗水平同质化提高，解决民众日益增长的医疗需求和各地医疗发展不平衡之间的矛盾。我 国眼科住培改革经历十余年，在追求同质化的实践中发现一些值得重视的问题，如教学师资的选 拔和培训、临床操作类教学的落实、教学师资待遇的提升以及包括人文在内的住院医师诊疗能力 全面培养等。本文探讨了这些问题的根源和解决方法，希望通过改革将住培这一临床医学基础工 程更好的落到实处。

Standardized resident training (called ‘ZhuPei’ for short in Chinese) is an important measure of the New Healthcare Reform in China, aiming to promote the homogenization of clinical medicine level which tackles the constraints of unbalanced medical development so that people’s ever-growing medical demand can be supplied. With the reality of over 10 years’ ophthalmology standardized resident training experience in China, certain crucial issues are put forward, such as the selection and training of teachers, the implementation of clinical training course, the concern of teachers’ salary and promotion, the residents’ capabilities of diagnosis and treatment including humanistic care, etc. This article discusses the root causes of those issues and the solutions to them, intending to implement the standardized resident training as a basic clinic medical engineering through the New Healthcare Reform

视网膜退行性疾病的种类繁多、患病人口基数大，该病特征为终末期严重的视网膜细胞丢失。视网膜类器官(retinal organoid，RO)可通过3D干细胞体外分化培养技术大量获取，并拥有完整的各亚型视网膜细胞和经典的视网膜分层结构。因此，RO可作为最佳的视网膜退行性疾病建模方法之一，以便于发现潜在致病机制。目前，RO衍生物已被广泛用于视网膜细胞替代治疗的动物实验和临床研究，具体的成效参差不齐，可能的影响因素包括移植细胞数量、移植时间窗、移植工具等。随着RO相关研究的快速发展，视网膜退行性疾病在分子和个体上的诊断和治疗将进一步完善。

Retinal degenerative diseases, characterized by severe retinal cell loss at the end stage, are of various kinds and haunt vast amounts of patients. Retinal organoid (RO) with complete retinal cell subtypes and classic retinal stratification structures can be obtained in large quantities through stem cells in vitro 3D differentiation and culture method. Therefore, RO can serve as one of the best ways for retinal degenerative disease modeling to facilitate the decipherment of underlying pathogenic mechanisms. At present, RO derivatives have been widely used in animal experiments and clinical studies of retinal cell replacement therapy with varying results possibly affected by cell quantity, time window, or tools in terms of transplantation. With the booming progress of RO-related research, the diagnosis and treatment on molecular and individual level for retinal degenerative diseases will be further improved.

目的：建立能驱动GFP在视网膜神经节细胞(retinal ganglion cell，RGC)中特异性表达的小鼠胚胎干细胞系。方法：通过同源重组的方式建立Brn3b-GFP敲入的小鼠胚胎干细胞系(Brn3b-GFP ESC)，利用3D培养将其诱导成视网膜类器官检测GFP表达的细胞特异性，再用流式细胞分选富集GFP阳性RGC，采用玻璃体腔注射的方式将GFP阳性RGC移植到健康小鼠和NMDA损伤模型小鼠眼中探索该细胞的应用价值。结果：Brn3b-GFP ESC经3D视网膜诱导培养后在RGC中特异性表达GFP，将这些GFP阳性RGC移植到两种小鼠中2周后能在所有视网膜内观察到GFP阳性细胞存活，且均能观察到有供体RGC整合到宿主视网膜RGC层。结论：本研究建立了RGC特异的报告基因干细胞系Brn3b-GFP ESC，通过将该细胞系诱导成视网膜类器官进而获得的GFP阳性RGC移植后能够整合进宿主视网膜。该细胞系的建立将为青光眼及相关疾病提供重要的研究手段和工具。

Objective: This study was designed to establish a mouse embryonic stem cell line that can drive GFP expression specifically in retinal ganglion cells (RGCs). Methods: In this study, we established a Brn3b-GFP knock-in embryonic stem cell line (Brn3b-GFP ESC) by homologous recombination. By 3D culture, we induced these cells into retinal organoids to investigate the cell-specificity of GFP expression. GFP-positive RGCs were then enriched by flow cytometry and transplanted by intravitreal injection into the eyes of healthy mice and NMDA injury model mice to explore the feasibility of a potential clinical application. Results: GFP was specifically expressed in RGCs following induction of Brn3b-GFP ESCs into 3D retinal organoids. Two weeks after these GFP-positive RGCs were transplanted into the control and injured mice, GFP-positive cells were observed in all transplanted retinas, and donor RGCs were seen to integrate into the RGC layer of the host retina. Conclusion: This study has established a retinal ganglion cell-specific reporter stem cell line Brn3b-GFP ESC. The GFP-positive RGCs obtained by inducing the cell line into retinal organoids can be integrated into the host retina after transplantation. The establishment of such a cell line will provide an important research tool for glaucoma and related diseases.

视网膜静脉阻塞(retinal vein occlusion，RVO)是发生率仅次于糖尿病性视网膜病变的视网膜血管病。RVO后导致视网膜血管损伤进而引起血管闭塞，造成视网膜缺血从而促进异常视网膜新生血管(retinal neovascularization，RNV)的增生，晚期发生玻璃体积血、新生血管性青光眼等并发症，积极治疗可以稳定患者的眼部情况，避免并发症的发生。本文报告了1例患有高血压病的23岁年轻女性患者发生视网膜分支静脉阻塞并发新生血管增殖膜的病例，给予病变区视网膜激光光凝治疗，10年后随访发现RNV膜机化萎缩。

Retinal vein occlusion (RVO) is the second most common retinal vascular disease after diabetic retinopathy. Retinal vascular damage after RVO leads to venous occlusion, which further causes retinal ischemia and promotes abnormal retinal neovascularization (RNV). Later complications such as vitreous hemorrhage and neovascular glaucoma occur. Active treatment can stabilize the ocular condition of patients and avoid the occurrence of complications. This paper reports a case of a 23-year-old young female patient with hypertension who developed branch RVO complicated by neovascularization membrane. The lesion area was treated with laser photocoagulation. The RNV was found to be mechanized and atrophied after 10 years of follow-up.

报道1例睫状体无色素上皮腺瘤(adenoma of nonpigmented ciliary epithelium，ANPCE)并进行相关文献复习。患者主要症状为左眼视力逐渐下降3个月，视物不清半个月。经眼部检查及左眼超声生物显微镜(ultrasound biomicroscopy，UBM)检查显示左眼虹膜周边隆起，边界清晰。予虹膜睫状体肿物切除术并行常规病理检查：光镜下肿瘤组织由分化好的上皮细胞组成，排列成腺泡状及条索状，细胞间可见红染无结构的基底膜样物；免疫组织化学表达：S-100(+)、Vimentin(+)、EMA(+)、CKpan(+)、Melan-A(+)；最终病理诊断ANPCE。手术后截至随访日期，术后3个月无疾病进展。

A case of adenoma of nonpigmented ciliary epithelium (ANPCE) was reported and relevant literatures were reviewed. The left eye visual acuity of the patient gradually decreased for 3 months, and half a month was blurred vision. The vision examination and ultrasound biomicroscopy (UBM) from the left eye examination revealed a bulge in the peripheral iris in the left eye, with the boundaries are clear. The left eye was treated with ciliary mass resections and routine pathological examination: microscopy showed that the tumor tissue consists of well-differentiated epithelial cells, the tumor cells were arranged in tubes and cords, between the cells were seen red-stained unstructured basement membrane; immunohistochemistry showed: S-100 (+), Vimentin (+), EMA (+), CKpan (+), Melan-A (+); the final pathological diagnosis was ANPCE. There was no progression of the disease during the 3 months following the surgery on the follow-up date.

非器质性视力下降也称为心因性或功能性视力下降，除视力下降外，还可伴有视野缺损，多由于精神心理疾患导致的转换障碍引起，部分患者为诈病以获取利益。本文报道1例6岁的女性患者，主诉双眼反复视力下降1年余，早期被误诊为儿童视神经炎，给予糖皮质激素冲击治疗，治疗后稍有好转。通过本例患者误诊的教训，提醒我们在遇到儿童出现不明原因的视力下降时，在没有明确器质性疾病证据时要想到非器质性视力下降的可能，掌握识别非器质性视力下降的检查方法，不能忽略相对性传入性瞳孔障碍(relative afferent pupillary defect，RAPD)等基础的神经眼科检查。

Non-organic vision loss is also known as psychogenic or functional vision loss. In addition to vision loss, it can also be accompanied by visual field defect. It is mostly caused by conversion obstacles caused by mental and psychological diseases. Some patients cheat to obtain benefits. This paper reports a 6-year-old female patient who complained of repeated visual acuity decline for more than one year. She was misdiagnosed as pediatric optic neuritis in the early stage and was treated with glucocorticoid shock therapy, which her condition improved slightly after treatment. The misdiagnosis of this patient teaches us that when children have unexplained visual acuity decline, we should think of the possibility of non-organic visual acuity decline when there is no clear evidence of organic diseases, master the examination methods to identify non-organic visual acuity decline, and cannot ignore the basic neuro-ophthalmic examination such as relative afferent pupillary defect (RAPD).