目的：探讨非超声乳化白内障手术两种不同的娩核方式对角膜内皮细胞数量和形态的影响，以及对术后视力恢复情况的影响。

方法：选择在本院手术治疗的40例白内障患者娩核方式分为直接娩出组和半娩出组，并根据 Emery－ little晶状体核硬度分级标准分为软核和硬核，手术方式为白内障非超声乳化手术，术后第3天用角膜内皮镜检查并记录角膜内皮细胞数量和形态。术后随访3个月，比较并观察4组患者术前和术后角膜内皮细胞丢失率、形态变化和视力恢复情况。

结果：术前和术后3个月角膜内皮细胞丢失率比较，硬核直接娩出组与另外三组比较差异有统计学意义(P＜0.01)，而软核直接娩出组、硬核半娩出组与软核半娩出组比较差异无统计学意义(P＞0.05)。术前和术后第二天视力比较硬核半娩出组和软核直接娩出组之间无统计学意义(P＝0.49)，软核半娩出组与这两组比较有统计学意义(P＝0.030)，硬核直接娩出组与这两组之间比较也有统计学意义(P＝0.14)，术后三个月视力比较4组之间均无统计学意义(P＝0.067)。术后 3 个月角膜内皮细胞形态变化不明显。

结论：白内障非超声乳化手术时，硬核直接娩核法对角膜内皮细胞损伤最大，软核半娩核法对角膜内皮损伤最小。若内皮细胞损伤较轻，对手术3个月后视力和角膜内皮细胞形态无明显影响。 

Purpose: To investigate the effect of non-phacoemulsification cataract operation in two different patterns of nucleus delivery on the quantity and morphology of corneal endothelial cells and postoperative visual acuity．

Methods: Forty patients diagnosed with cataract underwent cataract surgery and were assigned into the direct nuclear delivery and semi-nuclear delivery groups. Lens density was measured and divided into the hard and soft lenses according to Emery-little lens nucleus grading system. Non-phacoemulsification cataract operation was performed. At 3 d after surgery, the quantity and morphology of corneal endothelium were counted and observed under corneal endothelial microscope. During 3-month postoperative follow-up, the endothelial cell loss rate, morphological changes and visual acuity were compared among four groups．

Results: Corneal endothelial cell loss rate in the direct delivery of hard nucleus group significantly differed from those in the other three groups before and 3 months after operation (P＜0.01),  whereas no statistical significance was found among the direct delivery of soft nucleus,  semi-delivery of hard nucleus and semi-delivery soft nucleus groups (all P＞0.05).  Preoperative and postoperative 2-d visual acuity did not differ between the semi-delivery of hard nucleus and direct delivery of soft nucleus groups (P＝0.49)，significantly differed from those in the semi-delivery of soft nucleus (P＝0.03) and direct delivery of hard nucleus groups (P＝0.14). Visual acuity at postoperative four months did not differ among four groups (P＝0.067). 
Conclusion: During non-phacoemulsification cataract surgery, direct delivery of hard nucleus caused severe injury to corneal endothelium and semi-delivery of soft nucleus yielded mild corneal endothelial injury. Slight corneal endothelial injury exerted no apparent effect upon visual acuity and corneal endothelial morphology at three months after surgery．

目的：探讨飞秒激光辅助角膜内皮移植(endothelial keratoplasty，EK)患者的护理。方法：对40例 行飞秒激光辅助EK术的患者做好术前心理护理，完善术前检查及术前准备，术后重点做好体位护 理、病情观察及出院指导。结果：4例患者术后发生植片移位，经再次复位后贴合良好，1例术后第1天气泡到后房行前房成形术；13例患者术后出现眼压升高，经治疗眼压得到控制；40例患者全 部治愈出院。结论：对EK术患者应做好术前及术后的护理，及时发现并发症并采取相应的治疗与护理措施，以提高手术的成功率。

Objective: To explore the nursing care of patients with femtosecond laser assisted endothelial transplantation. Methods: Forty patients were involved in this study. Preoperative psychological nursing, ocular examination, and surgical preparation were taken, and the main nursing postoperation focused on patients’ position and the discharge guidance. Results: TTe graffs in 4 cases were displaced, and were all in place affer resetting. The bubble was observed in posterior chamber in 1 case, this case was taken anterior chamber forming operation. Intraocular pressure was high in 13 cases, and those cases were treated with topical medicines. Conclusion: Completing the preoperative nursing of patients with corneal endothelial transplantation, observing the complications and taking corresponding treatment and nursing measures help improve the success rate of the operation.  

目的：探讨飞秒激光辅助角膜内皮移植(endothelial keratoplasty, EK)手术的护理配合。方法：对19例(19只眼)飞秒激光辅助的EK手术进行术前访视，充分的术前准备，各种仪器调试及器械的准 备，术中熟悉手术过程，指导患者配合手术并密切配合医生，做好患者术中、术后的体位管理，仪器及器械的处理。结果：19例手术均顺利完成，术中无意外发生，患者积极配合，术后视力89.5%(17/19)明显提高，眼部刺激症状消失，植片角膜内皮细胞数丢失不多。结论：飞秒激光辅助EK作为一种全新的手术技术，完善的术前准备，密切的手术配合，特殊体位护理是保证手术成功的关键。

Objective: To investigate nursing and cooperation of femtosecond laser-assisted endothelial keratoplasty (EK). Methods: Preoperative visit and adequate preoperative preparation were proceeded in 19 patients (19 eyes) underwent femtosecond laser-assisted EK, instrument commissioning and equipment preparation were performed before the surgery. We mastered the surgical procedures, guided patients for cooperating the operation, and cooperated closely with surgeon during operation. Management of intraoperative and postoperative body position were accomplished, instruments and equipment were well processed aff er operation. Results: All of the 19 cases were successfully completed without intraoperative accident, all of the patients cooperated actively. Postoperative visual acuities in 89.5% (17/19) of the patients were improved significantly, ocular irritation symptoms were disappeared, and corneal endothelial cells of the grafts were decreased slightly. Conclusion: Femtosecond laserassisted EK is a brand new surgical technology, perfect preoperative preparation, intimate operative cooperation, and management of special body position are essential for a successful operation.

目的:探讨碱性成纤维细胞生长因子(Basic fibroblast growthfacfor, bFCF)，表皮细胞生长因子(Epidermal growth factor, EGF)和神经细胞生长因子(Nerve growth factor, NGF)对体外培养的人角膜内皮细胞的生长调控作用。

方法:将相同数量的人角膜内皮细胞接种于96孔板。加人浓度分别为0 ng/ml、1 ng/ml、3 ng/ml、10 ng/ml、30 ng/ml、100 ng/ml的 EGF、bFGF 和 NGF 进行培养。5 天后 MTT法用检测增殖情况。
结果:在0 ng/ml、1 ng/ml、3 ng/ml、10 ng/ml、30 ng/ml、100 ng/ml 浓度下 bFGF 组的平均 OD 值分别为： 0.224±0.045、0.239±0.040、0.262±0.0342、0.278±0.0319、0.281±0.0324、0.260±0.0310 EGF组的平均 0D 值分别为: 0.228±0.0304、0.245±0.0418、0.267±0.0454、0.275±0.0347、0.271±0.0449、0.250±0.0253。NGF 组的平均 OD 值分别为：0.216±0.0187、0.228±0.0226、0.231±0.0225、0.242±0.0279、0.245±0.0294、0.247±0.0349。
结论:bFGF在 30 ng/ml范围内对内皮细胞生长有促进作用,并具有剂量依赖性。高于100 ng/ml时促生长作用降低。EGF在10 ng/ml范围内对内皮细胞生长有促进作用，并具有剂量依赖性。高于30 ng/ml 时促生长作用降低。NGF本次实验剂量范围内对角膜内皮细胞生长无明显作用。

Purpose: To investigate effect of bFGF, EGF and NGF on growth of cultured humancorneal endothelial cells.
Methods: Cultured human corneal endothelial cells were seeded into individual wellsof 96-well tissue culture plate with the same culture media containing separately bFCF, EGF or NGF with a serial of concentrations of 0 ng/ml、1 ng/ml 、3 ng/ml、10 ng/ml 、30 ng/ml and 100 ng/ml and then cultured for 5 days. Then MTT method wasused to detect the growth of the cells.
Results: The averaged OD values of the cell wells containing bFCF with a serial of concentrations of 0 ng/ml、1 ng/ml、3 ng/ml、10 ng/ml、30 ng/ml and 100 ng/ml were 0.224±0.045, 0.239±0.040, 0.262±0.0342, 0.278±0.0319, 0.281±0.0324, 0.260±0.0310. The averaged OD values of EGF group and NGF group were separately 0.228±0.0304，0.245±0.0418, 0.267±0.0454, 0.275±0.0347, 0.271±0.0449, 0.250±0.0253 and 0.216±0.0187, 0.228±0.0226, 0.231±0.0225, 0.242±0.0279, 0.245±0.0294，0.247±0.0349.
Conclusion: bGFC can promote the growth of human corneal endothelial cells in adose dependent manner while with concentration lower than 30 ng/ml. bFGF withconcentration that is higher than 100ng/ml will weaken this effect. EGF can alsopromote proliferation of human corneal endothelial cells demonstrating a linear dosedependent effect when its concentration is lower than 10 ng/ml and this effect decreasedwhen its concentration was higher than 30 ng/ml, NGF showed no effect on the growthof human cornea endothelial cells in this study.

目的：探讨大泡性角膜病变(bullous keratopathy，BK)患者行飞秒激光辅助的角膜内皮移植术(endothelium keratoplasty，EK)的围手术期护理。方法：回顾性分析在南京总医院眼科行飞秒激光辅助角膜内皮移植的BK20例患者，分析并总结患者术前的心理疏导、术前准备、眼科检查、术中如何配合医生、术后特殊体位、高眼压的护理及如何正确用药和出院健康教育等。结果：患者得到及时、有效的护理，术后视力均有所提高，内皮贴伏好，无排斥反应及其他并发症的发生。结论：通过对患者围手术期的护理，可提高护理质量，缩短患者住院时间。

Objective: To observe the perioperative nursing of femtosecond laser-assisted corneal endothelial transplantation in the treatment of patients with bullous keratopathy. Methods: A retrospective analysis of 20 patients with bullous keratopathy with femtosecond laser-assisted corneal endothelial transplantation in our department. The preoperative psychological counseling, preoperative preparation, ocular examination, how to cooperate with the doctors in operation, nursing of special position, high intraocular pressure after surgery, how to use eye drops correctly and health education after discharge were summarized. Results: Nursing were performed to the patients timely and effectively. Postoperative visual acuity of all the patients were improved, the endothelial and corneal stroma bed are well combined and no graft rejection and other complications occurred in the patients postoperatively. Conclusion: We concluded that the quality of nursing was improved and the time of hospitalization was shortened after perioperative nursing.

目的：评估硅油填充术后眼压对角膜内皮细胞的影响及变化特点。方法：选取2019年1月1日至9月30日在佛山市第二人民医院眼科中心行玻璃体切除联合硅油注射的患者共131名，分为高眼压组(n=80)和正常眼压组(n=51)。高眼压组术后任意一次测眼压>21 mmHg，正常眼压组术后眼压均≤21 mmHg。比较填充硅油前与取硅油时的角膜内皮细胞参数测量值。结果：高眼压组的平均眼压为20.79 mmHg，正常眼压组的平均眼压为14.70 mmHg(P<0.001)。取硅油时，两组角膜内皮细胞密度(corneal endothelial cell density，ECD)均明显减少，平均内皮细胞面积均明显增大(P<0.05)，高眼压组内皮细胞大小变异系数(coefficient of variation of endothelial cell size，CV)明显变大(P<0.05)。高眼压组ECD丢失率(6.3%)高于正常眼压组(3.5%)；其中，高眼压组中术后1~6周内的眼压升高(7.1%)、眼压≥40 mmHg(7.3%)对角膜内皮细胞影响最大。ECD丢失与眼压变化有显著相关性(r=0.176，P=0.044)。结论：硅油填充后高眼压是角膜内皮细胞丢失的重要危险因素。

Objective: To evaluate the effect of intraocular pressure (IOP) on corneal endothelial cells after silicone oil tamponade. Methods: Patients (n=131) received vitrectomy with silicone oil injection in Ophthalmology Center in Second People’s Hospital of Foshan City from January 1st to September 30th 2019 were divided into the high IOP group (n=80) and normal IOP group (n=51). IOP was >21 mmHg at any time in the high IOP group and was ≤21mmHg in the normal IOP group after surgery. The values of corneal endothelial cells before filling with silicone oil and before removing silicone oil were compared.Results: The average IOP was 20.79 mmHg in the high IOP group, and 14.70 mmHg in the normal IOP group (P<0.001). The number of endothelial cells (ECD) was reduced, but the average endothelial cell area was increased (P<0.05) in both groups. The coefficient of variation of endothelial cell size in high IOP group was increased (P<0.05). ECD loss rate was 6.3% in the high IOP group and 3.5% in normal IOP group. Increased IOP within 1–6 weeks after surgery (7.1%) and IOP ≥40 mmHg (7.3%) had the greatest impact on ECD. ECD loss was correlated with IOP (r=0.176, P=0.044). Conclusion: High intraocular pressure after silicone oil filling is an important risk factor for the loss of corneal endothelial cells.Keywords intraocular pressure; corneal endothelium; silicone oil; vitrect