目的：总结并分析视野为中心暗点的视神经病变的病因和临床特点，为临床诊治提供参考。方法：回顾性病例研究。分析2018年8月至2020年3月期间，在中山大学中山眼科中心神经眼科专科门诊就诊，视野表现为中心暗点且随访1年以上的视神经病变患者的资料。患者双眼均行最佳矫正视力、眼压、裂隙灯显微镜及前置镜、频域光学相干断层扫描、视野、颅脑和眼眶核磁共振检查，静脉采血行血常规、血生化、肝肾功能、感染指标(乙肝、丙肝、梅毒、HIV及结核T-spot)检查及Leber遗传性视神经病变的线粒体DNA和OPA1基因检测。结果：共纳入20例患者，病因诊断构成为：Leber遗传性视神经病变9例(45%)，显性视神经萎缩2例(10%)，乙胺丁醇中毒性视神经病变6例(30%)，营养性视神经病变2例(10%)和特发性脱髓鞘性视神经病变1例(5%)。遗传性视神经病变的视力预后差，特别是Leber遗传性视神经病变，78%的随访视力(≥1年)不高于0.1。伴有mtDNA或OPA1基因突变的乙胺丁醇中毒性视神经病变患者，视力预后差。结论：视野为中心暗点表现的视神经病变，主要为遗传、中毒和营养性视神经病变。遗传性视神经病变具有不完全外显率的特点，视野为中心暗点的视神经病变需行基因检测排除遗传性视神经病变。
Objective: To summarize and analyze the etiology and clinical features of optic neuropathy with visual field defect of central scotoma as a reference for clinical diagnosis and treatment. Methods: In the retrospective case study, the data of patients admitted in Neuro-ophthalmic Department of Zhongshan Ophthalmic Center of Sun Yat-sen University from August 2018 to March 2020, who presented with visual field defect of central scotoma and were followed up for more than 1 year, were analyzed. Both eyes of all the patients underwent best corrected visual acuity, intraocular pressure, slit lamp microscope and front mirror, spectral domain optical coherence tomography, humphry visual field tests and MRI of brain and orbit. We examined the blood routine, biochemical test, renal and liver function, infection indicators (hepatitis B, hepatitis C, syphilis, HIV and tuberculosis T-spot), mitochondrial DNA and OPA1 gene detection of Leber hereditary optic neuropathy. The follow-up time of the patients in neuro-ophthalmic department was more than 1 year. Results: A total of 20 patients were recruited. Among them, the etiological diagnosis consisted of 9 patients of Leber hereditary optic neuropathy (45%), 2 of dominant optic atrophy (10%), 6 of ethambutol-induced optic neuropathy (30%), 2 of nutritional optic neuropathy (10%) and 1 of idiopathic demyelinating optic neuropathy (5%). The patients with hereditary optic neuropathy showed a poorer visual prognosis, especially Leber hereditary optic neuropathy, with 78% of follow-up visual acuity (≥1 year) not higher than 0.1. The visual prognosis of ethambutol-induced optic neuropathy patients with mtDNA or OPA1 gene was poor. Conclusions: The optic neuropathy of visual field defects with central scotoma includes mainly hereditary, toxic and nutritional optic neuropathy. Hereditary optic neuropathy is characterized by incomplete penetrance, and genetic testing is required to exclude hereditary optic neuropathy if the visual field is the central scotoma.
目的：以提升进行住院医师规范化培训(住培)的眼科医生临床诊疗思维能力为导向，建立LRC渐进协作教学体系(LRC Stepwise Collaborative Learning Model)。方法：2023年7月—2023年12月，以26名进行眼科住培的医生为试验组的研究对象，采用小讲课(Lecture)、教学查房(Rounds)及病例讨论(Case discussion)的LRC渐进协作教学体系，通过定量分析方法评估教学效果。结果：实施LRC渐进协作教学模式后，住培医生平均成绩由培训前的50.00 (40, 50)分提高至培训后的90.00 (80, 100)分，差异具有统计学意义(P＜0.001)。问卷调查满分5分，小讲课、教学查房和病例讨论三种教学形式的满意度满分比例分别为92.3%(24/26)，84.6%(22/26)、76.9%(20/26)，三种教学形式的满意评分分别为5.00 (5.00, 5.00)、5.00 (5.00, 5.00)、5.00 (4.75, 5.00)分。结论：LRC渐进协作教学体系作为住培教学新体系，得到眼科住培医生的认可，促进临床诊疗思维的整体提升，有助于岗位胜任力的培养，为未来教学模式的设计与实施提供了重要参考。
Objective: To introduce the LRC Stepwise Collaborative Learning Model, a novel teaching approach designed to improve clinical thinking skills in ophthalmology training. Methods: From July 2023 to December 2024, 26 ophthalmology residents were included in the experimental group, underwent training using LRC Stepwise Collaborative Learning Model of Lectures, Rounds and Case Discussions. Their educational outcomes were quantitatively analyzed. Results: The LRC Stepwise Collaborative Learning Model improved average resident scores from pre-training [50(40, 50) points] to post-training [90(80,100) points], with a statistical significance (P < 0.001). The questionnaire survey had a maximum score of 5 points, and the rates of full marks for the three teaching forms of lectures, rounds, and case discussions were 92.3% (24/26), 84.6% (22/26), and 76.9% (20/26), respectively. The satisfaction scores for the three teaching forms were 5.00 (5.00, 5.00), 5.00 (5.00, 5.00), and 5.00 (4.75, 5.00) points, respectively. Conclusions: The LRC Stepwise Collaborative Learning Model, as a new training system for residency education, has been recognized by ophthalmology residents. It facilitates the overall improvement of clinical thinking, contributes to competency development, and provides valuable insights for future teaching model designs.
