眼睛是人体最重要的感觉器官之一，主要由角膜和晶状体构成的屈光系统和视网膜构成的视觉神经系统2个部分构成。眼睛各组织的发育和功能异常都可影响视功能，甚至致盲。现有的致盲眼病的治疗方式均存在各自瓶颈问题，新的诊治方法亟待开发。近年来，得益于干细胞和组织工程学的发展，结合现有眼各组织的发育理论知识，研究者们利用多种来源的干细胞在体外成功诱导出具有组织特异结构和功能的眼类器官。眼类器官研究为利用干细胞研究眼组织发育和眼病发病机制、药物筛选以及替代治疗创造了新机遇，将干细胞治疗眼病的转化研究推向了一个更高平台。本文将对现有眼类器官的技术发展及应用进行综述。
Being one of the most important sensory organs, the eye is composed of the cornea, the lens, which are responsible for refraction, and the retina, which is the neural sensory part of the eye. Various kinds of developmental abnormalities and functional defects could lead to visual dysfunctions, and even blindness. Current treatments for blindness-causing eye diseases all have their own limitations, awaiting new efficient diagnostic and treating methods. Thanks to the development in stem cell biology and bioengineering, taking advantage of the rich knowledge accumulated on the mechanisms governing eye development, researchers have successfully generated various ocular organoids using multiple sources of stem cells in vitro, which resemble their counterparts in vivo on both the structural level and functional level. Ocular organoids provide valuable material and models for studying eye development, pathology, drug screening, and cell replacement therapy, pushing translational studies of ocular stem cell to a new era. Here, the paper reviews the development and application of ocular organoid technologies.
Background: Bacillary layer detachment (BALAD) is a phenomenon characterized by fluid accumulation at the myoid region of the inner photoreceptor segments identifiable on optical coherence tomography (OCT) imaging. This finding has been recently described in patients with diverse primary diagnoses which share the common feature of serous exudation in the posterior pole. However, thus far there have been very few reports in the literature of BALAD in patients with posterior scleritis.
Background: Bacillary layer detachment (BALAD) is a phenomenon characterized by fluid accumulation at the myoid region of the inner photoreceptor segments identifiable on optical coherence tomography (OCT) imaging. This finding has been recently described in patients with diverse primary diagnoses which share the common feature of serous exudation in the posterior pole. However, thus far there have been very few reports in the literature of BALAD in patients with posterior scleritis.
Case Description: A 16-year-old male presented with unilateral vision changes that acutely worsened overnight to significant unilateral vision loss. He was eventually diagnosed with idiopathic posterior scleritis with associated BALAD on OCT. Similar to other reported cases of BALAD, he experienced anatomic restoration of the outer retina followed by good visual recovery after treatment with high dose steroid, ultimately with complete recovery of both retinal anatomy and vision within 4 months.
Conclusions: This case provides further evidence that posterior scleritis can be a cause of BALAD. The rapid presentation and excellent visual and anatomical outcome of this case is entirely consistent with known descriptions of BALAD in a variety of other conditions, further supporting the categorization of BALAD as an entity which retinal specialists should be able to recognize as distinct from other forms of intraretinal fluid, retinal detachment, and retinoschisis.
Background: The complexity of the glaucoma pathophysiology is directly reflected on its experimental modeling for studies about pathological mechanisms and treatment approaches. Currently, a variety of in vivo models are available for the study of glaucoma, although they do not reach an exact reproduction of all aspects characterizing the human glaucoma. Therefore, a comprehensive view of disease onset, progression and treatment efficacy can only be obtained by the integration of outcomes deriving from different experimental models.
Methods: The present article summary experimental procedures and analytical methodologies related with two experimental models of glaucoma belonging to the classes of induced intraocular pressure (IOP)-elevation and genetic models, methyl cellulose (MCE)-induced ocular hypertension and DBA/2J mouse strain. Point-by-point protocols are reported with a particular focus on the critical point for the realization of each model. Moreover, typical strength and drawbacks of each model are described in order to critically handle the outcomes deriving from each model.
Discussion: This paper provides a guideline for the realization, analysis and expected outcomes of two models allowing to study IOP-driven neurodegenerative mechanisms rather than IOP-independent neurodegeneration. The complementary information from these models could enhance the analysis of glaucomatous phenomena from different points of view potentiating the basic and translational study of glaucoma.
Background: The complexity of the glaucoma pathophysiology is directly reflected on its experimental modeling for studies about pathological mechanisms and treatment approaches. Currently, a variety of in vivo models are available for the study of glaucoma, although they do not reach an exact reproduction of all aspects characterizing the human glaucoma. Therefore, a comprehensive view of disease onset, progression and treatment efficacy can only be obtained by the integration of outcomes deriving from different experimental models.
Methods: The present article summary experimental procedures and analytical methodologies related with two experimental models of glaucoma belonging to the classes of induced intraocular pressure (IOP)-elevation and genetic models, methyl cellulose (MCE)-induced ocular hypertension and DBA/2J mouse strain. Point-by-point protocols are reported with a particular focus on the critical point for the realization of each model. Moreover, typical strength and drawbacks of each model are described in order to critically handle the outcomes deriving from each model.
Discussion: This paper provides a guideline for the realization, analysis and expected outcomes of two models allowing to study IOP-driven neurodegenerative mechanisms rather than IOP-independent neurodegeneration. The complementary information from these models could enhance the analysis of glaucomatous phenomena from different points of view potentiating the basic and translational study of glaucoma.
单纯疱疹病毒基质型角膜炎是引起角膜盲的主要原因之一，目前以局部使用糖皮质激素联合口服抗病毒药物治疗为主。传统治疗存在生物利用度低、药物不良反应等缺点，因此亟需寻找替代药物、开发新剂型。环孢素A和他克莫司等免疫抑制剂疗效明显、不良反应少，可能是糖皮质激素的潜在替代品。α干扰素联合阿昔洛韦可缩短病程，而单独使用效果有限。基质再生剂具有新的抗病毒机制，值得进一步研究。此外，纳米载体递送系统，如脂质体、纳米胶束、立方液晶纳米粒，由于能够增强药物角膜穿透性和延长药物释放，在治疗基质型单纯疱疹性角膜炎方面具有巨大潜力。
Herpes simplex virus stromal keratitis is one of the leading causes of corneal blindness. A topical corticosteroidagent in conjunction with an oral antiviral agent is the preferred treatment, which has the disadvantages of low bioavailability and drug side effects. Therefore, there is an urgent need to find alternative drugs and develop new dosage forms. Immunosuppressants such as cyclosporine A and tacrolimus have obvious curative effects and few side effects, and may be potential substitutes for glucocorticoids. Interferon-α combined with acyclovir can shorten the course of disease, but the effect is not obvious when used alone. Matrix regenerating agents have new antiviral mechanisms and deserve further study. In addition, nanocarriers delivery systems, such as liposomes, nanomicelles and cubosomes, have great potential in the treatment of herpes simplex virus stromal keratitis due to their ability to enhance drug corneal penetration and prolong drug release.
晚期糖尿病(diabetes mellitus，DM)患者常出现的糖尿病性视网膜病变能够被发现，而糖尿病性角膜病变(diabetic keratopathy，DK)却时常被人们忽略。近年来的许多研究表明，DK对角膜的结构、代谢、生理功能等多个方面均有重要影响。目前临床上尚无根治DK的有效疗法，现主流疗法多集中于对症治疗以维持光滑湿润的眼表，最大限度地减少视觉损失以及提高舒适度，如局部滴用人工泪液、使用角膜绷带镜及局部使用抗炎药物等，但这些现有的治疗方法对于角膜组织损伤的修复能力有限。近年来出现神经生长因子、胰岛素疗法等新兴的治疗方法，有望未来应用于临床。
The diabetic retinopathy which often occurs in patients with advanced diabetes mellitus (DM) can usually be realized, but diabetic keratopathy (DK) could sometimes be ignored. In recent years, many studies have found out that DK can cause significant abnormal changes in many ways, including structure, metabolism and physiological functions of the cornea. At present, there is no effective therapy to cure DK. The current mainstream therapy mostly focuses on symptomatic treatment to maintain a smooth and moist ocular surface, minimize visual loss and improve comfort, such as local drip of artificial tears, use of corneal bandage lens and local use of anti-inflammatory drugs. However, these existing treatment methods have limited repair ability for corneal tissue damage. In recent years, a number of new treatment methods have emerged, which are expected to be clinically used in the future, such as nerve growth factors and insulin therapy.
临床上儿童外眦部肿物合并眼睑畸形及结膜肿物少见，需在切除眼睑、结膜肿物的同时，灵活处置眼睑整复。本文回顾2例就诊于北京儿童医院的先天性外眦肿物合并眼睑缺损的病例。术后病理示皮赘伴结膜皮样脂肪瘤。患儿眼睑肿物切除彻底，眼睑整复后外观满意。
Lateral canthus mass with eyelid deformity and conjunctival mass is rare in children. The eyelid reduction should be handled flexibly while the mass is removed. Two cases of congenital lateral canthus with eyelid coloboma were reviewed in Beijing Children’s Hospital. Postoperative pathology showed fibroepithelial polyp and conjunctival dermolipoma. The eyelid masses of the child were completely excised, and the appearance was satisfactory after eyelid reduction.
克服现有婴幼儿眼科手术病号服存在的穿脱不便、容易着凉、无法避免患儿抓挠术眼等问题，提供一种便于穿脱、保护胸腹部和术眼的婴幼儿眼科手术病号服*。
Abstract Present patient clothing for infants and children with ophthalmic surgery have several limitations, which is inconvenient to wear, hard to keep warm and difficult in preventing patients from scratching eyes underwent surgery. A modified patient clothing for infants and children is designed to overcome these existing problems.
干眼是一种临床常见慢性眼表疾病。它不仅能引发患者眼部不适及损害，还易导致患者出现心理障碍。目前最常见的干眼相关心理障碍主要为焦虑、抑郁和睡眠障碍。干眼病情的缓解，不仅需要针对干眼本身的积极治疗，还需要患者保持健康的心理状态。因此，应该关注干眼相关焦虑、抑郁等心理障碍的发病机制及预防、治疗措施。
Dry eye disease (DED) is a common chronic ocular surface disease. It can not only cause discomfort and damage to the eyes but also easily lead to psychological disorders in patients. The most common psychological disorders related to DED are anxiety, depression and sleep disorder. To alleviate the condition of DED, in addition to active treatment for DED itself, it is also necessary for the patients to maintain a healthy psychological state. Therefore, attention should be paid to the pathogenesis, prevention and treatment measures of DED-related anxiety, depression and other psychological disorders.
目的：调查中山大学中山眼科中心参加分子医学实验技能培训课程的研究生学员上课前的实验基础，为研究生实验技术课程的备课提供参考。方法：对2020年及2021年参加分子医学实验技能培训课程的博士和硕士研究生进行课前问卷调查。从理论知识和操作经验两方面对15个专题课程进行分析。结果：共155名学生完成问卷调查。在全部专业研究生中，25%以上学生对理论知识不了解的专题有14个，而仅有10%以下学生熟练操作的专题有6个；分子医学专业的优于前者，不了解和熟练掌握的专题个数分别是9和12。理论掌握程度最低的4个专题是细胞增殖、流式细胞、图像采集和组学分析。15个小专题整合成7个大专题，操作熟练程度由低到高依次是：眼科实验数据收集、组学技术、数据分析、细胞技术、蛋白技术、组织分析、分子技术。结论：新入学研究生存在分子医学实验技能基础理论知识薄弱以及科研训练不足等问题，迫切需要改善实验技能培训制度，深化课程体系建设。
Objective: To conduct a pre-course survey on the graduate students who participated in the Molecular Medicine Laboratory Skills Training Course in the Zhongshan Ophthalmic Center of Sun Yat-sen University to provide a reference for the preparation of the course. Methods: We asked the doctoral and master’s students who participated in the training courses of molecular medical experimental skills in 2020 and 2021 to take a pre-course questionnaire survey and analyzed the results by the students’ pre-course command of theoretical knowledge and pre-training operational experience in 15 lessons of special topics or techniques. Results: A total of 155 students completed the pre-course questionnaire survey. Our results showed that there were 14 lessons in which more than 25% of the students were not familiar with the theoretical knowledge, whereas there were 6 lessons in which less than 10% of the students had high operational proficiency. The students majoring in the molecular medicine had better prior knowledge of the techniques: there were only 9 lessons in which more than 25% of the students were not familiar with the theoretical knowledge, whereas there were 12 lessons in which less than 10% of the students had high operational proficiency. The four lessons with worst prior knowledge were cell proliferation, flow cytometry, image acquisition, and omics analyses. We grouped the 15 lessons into 7 categories: the ophthalmic experimental data collection, the omics technology, the data analyses, the cell technology, the protein technology, the tissue analyses, and the molecular technology, presenting by the level of the students’ pre-training proficiency from low to high. Conclusion: The first-year graduate students were very weak in basic knowledge and had little experience in techniques before joining the molecular medicine training courses. It is urgent to improve the laboratory skills training system and strengthen the construction of the curriculum system.
目的：了解眼科住院医师规范化培训学员(规培生)的沟通技能态度和人际沟通能力现状。方法：对中山大学中山眼科中心三个年级规培生的沟通态度和人际沟通能力进行问卷调查，并进一步分析其沟通态度与沟通能力的相关性。结果：共纳入196名规培生，沟通积极态度量表总分为51.38±6.52，消极态度为36.80±5.70，人际沟通能力为2.41±0.40，辅导与咨询维度得分为2.50±0.64，提供有效的负面反馈维度得分为2.61±0.50，支持性沟通维度得分为2.29±0.44。沟通技能的积极态度与人际沟通能力和三维度之间显著相关(P<0.01)。人际沟通技能得分与性别、规培年级、喜欢眼科专业的程度、得到家庭的关爱程度、得到朋友的关爱程度等因素显著相关(P<0.05)。结论：眼科规培生对沟通技能的积极态度优秀，但是总体沟通能力较弱，并受到多种因素影响。应充分重视规培生人际沟通能力的培养，开展医患沟通的专业化培训。
Objective: To evaluate the current status and correlations between attitudes and competency for interpersonal communication in ophthalmology standardized training trainee. Methods: A questionnaire survey was conducted on the communication attitudes and interpersonal communication ability of standardized training trainees from three grades in Zhongshan Ophthalmic Center, affiliated to Sun Yat-sen University, and the correlation between communication attitude and communication ability was further analyzed. Results: A total of 196 trainees were included. The scores of positive attitude, negative attitude, and interpersonal communication skills were 51.38±6.52, 36.80±5.70, and 2.41±0.40, respectively. In addition, the dimension of coaching and counseling scores were 2.50±0.64, the dimension of providing effective and negative feedback scores were 2.61±0.50, and the dimension of supportive communication scores were 2.29±0.44. The positive attitudes of communication skills were significantly related to the interpersonal communication skills and three-dimensionality (P<0.01). The interpersonal communication skills were significantly associated with sex, grades, interest in ophthalmology, social support from the family and friends (P<0.05). Conclusion: Ophthalmology trainees have excellent positive attitudes toward communication skills, but the overall communication skills are weak and influenced by a variety of factors. More attention should be paid to the development of interpersonal communication skills of the trainees, and specialized training in doctor-patient communication is warranted.
