因不同的眼部和神经性疾病，导致视觉功能严重受损，为低视力患者日常活动(如阅读及驾驶)及生活质量、心理健康带来严重的影响。人们对外界信息的感知主要来源于视觉，除威胁生命的重大疾病外，对人感官影响最大的损害当属视觉损伤。且随着人口日益老龄化，该问题日趋加重，低视力已成为目前全球范围内一个严重的公共卫生问题。目前，低视力康复发展面临着临床和科研的巨大挑战，要研发出一种能有效改善视觉功能，同时能兼顾多种功能的视障辅助技术，这需要医学、生物学、工程学、微电子学、计算机学等多学科的共同发展和相互合作。低视力康复通过为患者提供适宜的视障辅助技术，最大化利用患者的残余视力及视觉功能，改善与低视力相关的功能限制，有效改善其独立性和整体生活质量，使其独立生活、工作并融入社会成为可能。该文对经典的助视器、人工视觉(视觉假体/视觉感官替代设备)、经颅刺激及视觉生物反馈训练等视障辅助技术在低视力康复中的应用进展进行综述。

Patients with low vision are severely impaired in visual function due to different ocular and neurological disorders,which have a serious impact on their daily activities (such as reading and driving), quality of life and mental health.People's perception of external information mainly comes from vision. Expect for the life-threatening major diseases,visual damage has the greatest impact on people's senses. With the ageing of the population, the problem is getting worse, and low vision has become a serious public health problem in the world. Currently the development of low vision rehabilitation is facing a huge challenge in clinical and scientific research, to develop a visual impairment assistance technology that can effectively improve visual function while balancing multiple functions. It requires the joint development and cooperation of multiple disciplines such as medicine, biology, engineering, microelectronics, and computer science. Low vision rehabilitation provides patients with appropriate visual impairment assistance technology,maximizing the use of residual vision and visual function of patients, improving the functional limitations associated with low vision, effectively improving their independence and overall quality of life, and makes it possible for them to live, work and integrate into the society independently. This article reviews the progress in the application on visual impaired assistive technologies such as classic visual aids, artificial vision (visual prostheses/visual sensory replacement devices), transcranial stimulation and visual biofeedback training in low vision rehabilitation.

目的：比较硬膜外导管辅助双路置硅胶管术与传统双路置硅胶管术在泪小管断裂吻合术中的疗效。方法：随机将连云港市第二人民医院52例(52眼)行泪小管断裂吻合术的患者分成两组，使用硬膜外导管辅助双路置硅胶管术为A组(30例)；使用传统手术方式(双路置硅胶管术)为B组(22例)。比较两组患者术中置管时间、平均手术时间、鼻腔出血率、术中疼痛评分、一次性吻合成功率的差异。结果：在术中置管时间方面，A组为(11.20±3.80) min，B组为(21.50±12.60) min；在平均手术时间方面，A组为(42.70±5.50) min，B组为(62.20±15.20) min；在术中疼痛评分方面，A组为(3.10±0.80)分，B组为(4.60±1.25)分；在鼻腔出血率方面，A组为3.33%(1/30)，B组为18.2%(4/22)，以上差异均有统计学意义(均P<0.05)；但在一次性吻合成功率方面，A组有效率为93.3%(28/30)，B组有效率为86.4%(19/22)，差异无统计学意义(P>0.05)。结论：在泪小管断裂吻合术中，应用硬膜外导管辅助双路置硅胶管术较传统双路置硅胶管术，在术中置管时间、手术平均时间、鼻腔出血率、患者疼痛程度等方面具有优势，2种置管一次性成功率的差异无统计学意义，硬膜外导管辅助双路置硅胶术方法安全、可靠、优势明显，值得临床手术推广。

Objective: To compare the efficacy of bicanalicular silicone intubation assisted with epidural catheters and traditional bicanalicular silicone intubation in the anastomosis of lacrimal canaliculus rupture. Methods: Fifty-two patients (52 eyes) were randomly divided into two groups. Patients in group A (30 cases) were treated by bicanalicular silicone intubation assisted with epidural catheters, while patients in group B (22 cases) were treated with conventional operation (bicanalicular silicone intubation). The intubation time, average operation time, nasal bleeding rate, intraoperative pain score and one-time success rate were compared between the 2 groups. Results: Intubation time in group A was (11.20±3.80) min and that in group B was (21.50±12.60) min(P<0.05). The mean operation time of group A was (42.70±5.50) min and that of group B was (62.20±15.20) min(P<0.05). Intraoperative pain score was 3.10±0.80 in group A and 4.60±1.25 in group B (P<0.05). The rate of nasal hemorrhage was 3.33% (1/30) in group A and 18.2% (4/22) in group B (P<0.05). With respect to one-time anastomosis success rate assessment, the effective rate was 93.3% (28/30) in group A, and 86.4% (19/22) in group B (P>0.05). Conclusion: During lacrimal canalicular anastomosis, bicanalicular silicone intubation assisted with epidural catheters is superior to bicanalicular silicone intubation in intubation time, average operation time, nasal bleeding rate and pain degree. There is no significant difference between the two methods in one-time success rate. Bicanalicular silicone intubation assisted with epidural catheters is safe, reliable, and worthy of promotion.

目的：探索局部麻醉辅助小剂量丙泊酚联合瑞芬太尼镇静镇痛在成人斜视矫正术中的应用效果。方法：本研究为前瞻性队列研究，选取2020年10月1日至2021年5月31日于北京同仁医院行斜视矫正术的成年患者24例，单纯局部麻醉组、镇静镇痛组各12例。所有患者均应用2%利多卡因10 mL+0.1% 肾上腺素0.1 mL混合液进行眼部局部浸润注射，静脉滴注昂丹司琼8 mg。镇静镇痛组患者静脉滴注咪达唑仑1 mg、舒芬太尼5 μg，继之以丙泊酚0.6~3 mg/(kg·h)、瑞芬太尼0.01~0.05 μg/(kg·min)持续输注，使Ramsay镇静分级维持在II级。记录两组患者术中视觉模拟评分(visual analog scale，VAS)、脑电双频指数(bispectral index，BIS)、术者满意度评分及调节眼位配合度评分，术中恶心呕吐、眼心反射、呼吸抑制、血压心率等情况，以及丙泊酚、瑞芬太尼输注速度。结果：镇静镇痛组患者丙泊酚持续输注速度为0.6~1.8 mg/(kg·h)，瑞芬太尼持续输注速度为0.01~0.03 μg/(kg·min)。镇静镇痛组患者 术中VAS、BIS、心率增快发生率均低于单纯局部麻醉组(P<0.05)，术者满意度评分、血压下降发生率均高于单纯局部麻醉组(P<0.05)；两组患者术中恶心呕吐、眼心反射、呼吸抑制、血压升高发生率及调节眼位配合度评分差异均无统计学意义(P>0.05)。结论：在成人斜视矫正术中，局部麻醉辅 助小剂量丙泊酚联合瑞芬太尼镇静镇痛可有效减轻患者术中疼痛，作用安全可靠。

Objective: To explore the effect of local anesthesia assisted with sedation and analgesia of low-dose propofol combined with remifentanil in adult strabismus surgery. Methods: This study was a prospective cohort study. Twenty-four adult patients who underwent strabismus surgery in Beijing Tongren Hospital from October 1, 2020 to May 31, 2021 were selected and divided into local anesthesia group, and sedation and analgesia group, eachwith 12 patients. All patients received local anesthesia with a mixture of 2% lidocaine 10 mL and 0.1% epinephrine 0.1 mL, and intravenous ondansetron 8 mg. Patients in the sedation and analgesia group received intravenous infusion of midazolam 1mg and sufentanil 5 μg, followed by continuous infusion of propofol 0.6–3 mg/(kg·h) and remifentanil 0.01~0.05 μg/(kg·min) to maintain Ramsay sedation score at grade II. Visual Analogue Scale (VAS), bispectral index (BIS), operator’s satisfaction score, patient’s coordination score, nausea and vomiting, oculocardiac reflex, respiratory depression, blood pressure, heart rate and the infusion rate of propofol and remifentanil during operation were recorded in these two groups. Results: In the sedative and analgesic group, the infusion rates of propofol and remifentanil were 0.6–1.8 mg/(kg·h) and 0.01–0.03 μg/(kg·min), respectively. VAS, BIS and the incidence of increased heart rate in the sedation and analgesia group were lower than those in the local anesthesia group (P<0.05); operator’s satisfaction score and the incidence of decreased blood pressure in the sedation and analgesia group were higher than those in the local anesthesia group (P<0.05); there was no significant difference in the incidence of intraoperative nausea and vomiting, oculocardiac reflex, respiratory depression, elevated blood pressure and patient’s coordination score between the two groups (P>0.05). Conclusion: In adult strabismus surgery, local anesthesia assisted with sedation and analgesia of low-dose propofol combined with remifentanil can effectively relieve intraoperative pain, which is safe and reliable.