玻璃体

Ta group: After retinal vein was occluded by the same method used as above, a venipuncture is performed in the locations away from the occluded site about 2/3 to 1 PD distance, a 20G needle tip was used to puncture the retinal vein and underlying retina and the Bruch s membrane.

2手术方法：局部麻醉，标准三切口扁平部玻璃体切除术，术中作玻璃体后界膜的剥离和切除。在四象限视网膜分枝静脉距视盘2一3PD选定的吻合部位，预做局部视网膜光凝，切开静脉管壁和其下的视网膜和Bruch's膜，气/液交换，12%CZF。

Purpose:To investigate the technique of managing anterier vitreous by high gluey Healon.

目的：探讨并总结用高粘型的Healon代替玻璃体前切机处理前段玻璃体的经验。

Remained posterior hyaloid membrane is a common complication of PPV surgery, and it usually occurs in patients with PDR, RRD without obvious PVR, and early traumatic vitreous hemorrhage.

玻璃体后界膜残留是PPV手术常见并发症，易发生于PDR、无明显PVR的RRD和早期外伤性玻璃体积血患者；玻璃体后界膜残留是PPV术后产生PVR和视网膜脱离的重要原因之一。

Pars plana vitrectomy was carried out to remove the posterior hyaloid membrane. The visual acuity increased from 20/100 preoperatively to 20/25 after six months of follow-up.

病人接受经扁平部玻璃体切除手术，移除后玻璃体cortex，，病人视力术前之20/100进步到术后六个月之20/25。

The concentration of VEGF in aqueous humor and vitreous body in patients with proliferative vitreo-retinal diseases significantly increases, and VEGF may play an important role in the pathoge nesis of proliferative vitreo-retinal diseases.

增生性玻璃体视网膜疾病患者房水及玻璃体VEGF含量明显增高，VEGF可能在增生性玻璃体视网膜疾病发展变化中起着重要的作用。

This thesis has systematically studies the microstructure of the sinter bearing fluorine of different compositions and in different sintering condition.(1) The main units of the Low Fluorine Sinter are magnetite、hematite、 SFCA、larnite、glass and pore. The cuspidine doesn't form for the low content fluorine, and the fluorine is in glass; Sinter basicity dominates the forming of the larnite and SFCA, when basicity is between 1. 72 and 1. 96, there are more larnites in the binder phase, and when the basicity is biger than 1. 96, there are more SFCA in the binder phase; the hematite appears like magnetite and usually is around pore.

为此，本文对不同组成、不同烧结条件的烧结矿样品进行了系统的显微分析和研究，其主要内容包括：(1)构成低氟烧结矿的主要组元有磁铁矿、赤铁矿、铁酸钙、硅酸二钙、玻璃体和气孔，由于含氟量的降低，枪晶石等含氟矿物并未形成，氟分布在后期凝固的玻璃体中，其中硅酸二钙和铁酸钙受碱度影响较大，硅酸二钙在碱度为1.72～1.96范围内形成较多，铁酸钙在碱度大于1.96含量增多，赤铁矿呈磁铁矿假象，多分布在气孔周围，各组元的生成顺序为：磁铁矿—硅酸二钙—铁酸钙—玻璃体。

Results 15 eyes of peripheral retinal dry hole and peripheral retinal degeneration were treated only by laser treatment and successful rate was 100%;10 eyes with local rhegmatogenous retinal detachment,were initially treated with herbal dehydrant,followed by laser treatment and successful rate was 80%;2 eyes failed due to the traction of vitrous were successfully treated with the aids of local pad;141 eyes with retinal detachment were treated by scleral buckling combined with krypton laser and success rate was 96.5%,5 eyes failed due to the traction of vitrous were successfully treated with the aids of vetroretional operation;27 eyes with complicated retinal detachment were treated by vetroretional operation,followed by intro????and post????

结果 视网膜周边干性裂孔和视网膜周边变性单纯用氪多波长激光治疗15眼，成功100%；局限性孔源性视网膜浅脱离10眼，先使用脱水剂、卧床休息、单眼加压包扎等措施，而后行激光治疗，成功率80%，2眼因玻璃体有牵引结合局部垫压术后成功；巩膜外扣带术后激光封孔141眼，成功率96.5%。5眼因玻璃体有牵引行玻璃体手术后眼内激光封闭裂孔成功；复杂性视网膜脱离经玻璃体切割手术，术中及术后激光封闭裂孔27眼，成功100%。

Results 15 eyes of peripheral retinal dry hole and peripheral retinal degeneration were treated only by laser treatment and successful rate was 100%;10 eyes with local rhegmatogenous retinal detachment,were initially treated with herbal dehydrant,followed by laser treatment and successful rate was 80%;2 eyes failed due to the traction of vitrous were successfully treated with the aids of local pad;141 eyes with retinal detachment were treated by scleral buckling combined with krypton laser and success rate was 96.5%,5 eyes failed due to the traction of vitrous were successfully treated with the aids of vetroretional operation;27 eyes with complicated retinal detachment were treated by vetroretional operation,followed by intro-and post-operation,and success rate 100%.

结果 视网膜周边干性裂孔和视网膜周边变性单纯用氪多波长激光治疗15眼，成功100%；局限性孔源性视网膜浅脱离10眼，先使用脱水剂、卧床休息、单眼加压包扎等措施，而后行激光治疗，成功率80%，2眼因玻璃体有牵引结合局部垫压术后成功；巩膜外扣带术后激光封孔141眼，成功率96.5%。5眼因玻璃体有牵引行玻璃体手术后眼内激光封闭裂孔成功；复杂性视网膜脱离经玻璃体切割手术，术中及术后激光封闭裂孔27眼，成功100%。

Vitrectomy allows us to manage otherwise untreatable ocular pathologies, but the substitution of the vitreous by an artificial intraocular irrigation solution would probably disturb the physiology of the retina and choroids.

中文题名眼内灌注液对视网膜色素上皮细胞凋亡的影响副题名外文题名 The effects of different intraocular irrigating solutions on the apoptosis of RPE cells 论文作者殷春悦导师黎晓新教授学科专业眼科学研究领域\研究方向临床医疗技能训练与研究学位级别博士学位授予单位北京大学学位授予日期2001 论文页码总数94页关键词玻璃体切除术眼科手术细胞凋亡视网膜色素上皮细胞眼内灌注液馆藏号BSLW /2001 /R779.6 /42 随着玻璃体切除术的出现和日益发展，眼内灌注液作为术中使用的玻璃体替代物，直接影响视网膜和脉络膜的正常生理功能。

RESULTS: In Phaco group, 79.2％ of the patients visual acuities at the first day after operation were≥0.3. In this group, the nuclear hardnesses of some patients catract were ≤Ⅲ, and others ≥Ⅳ; complications occurred in the former including capsule rupture and vitreous prolapse(4.3%), corneal edema (22.2%); while the latter were 13.7% and 68.6%, respectively.

结果：Phaco组视力≥0.3者79.2%，核硬度≤Ⅲ者后囊膜破裂玻璃体脱出发生率4.3%，角膜水肿发生率22.2%，核硬度≥Ⅳ者后囊膜破裂玻璃体脱出13.7%，角膜水肿68.6%；MSICS组视力≥0.3者78.1%，核硬度≤Ⅲ者后囊膜破裂玻璃体脱出发生率3.8%，角膜水肿发生率19.0%，核硬度≥Ⅳ度者后囊膜破裂玻璃体脱出发生率5.7%，角膜水肿发生率14.3%。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐