羊膜移植或联合自体角膜缘移植术治疗复发性翼状胬肉

目的比较胬肉切除术、羊膜移植术(Amnioticmembranetransplantation,AMT)、联合自体角膜缘移植术(Limbalautografttransplantation,LAT)治疗复发性翼状胬肉或并睑球粘连疾病的治疗效果.方法切除组完成常规胬肉切除术.AMT组完成AMT的术式.联合改良的LAT组除用AMT组的方法外,将自体角膜缘的取材方法及部位选择作了改进;羊膜移植组术前随机所选7例供血患者,其中术后6例,分别在术前1天,术后1、2、3、8周抽血1ml,用流式细胞仪检测外周血T细胞CD69分子表达.结果切除组21例(24眼),平均随访9.88±2.65月,胬肉复发率45%;AMT组70例(71眼)平均随访10.49±2.93月,复发率23.94%;联合LAT组23例(26眼)平均随访10.48±2.97月,复发率3.85%.三组两两比较有显著性差异.AMT组53例(53眼)手术前后视力均数分别为0.849±0.260、0.940±0.185,有显著性差异.AMT组中17例复发胬肉其中6例是并有睑球粘连的患者,而10例并睑球粘连病例中8例睑球粘连获得解除、眼球运动障碍消失;LAT组3例中3例获得解除;切除组3例中均未获得解除.均未见外周血T细胞表面分子CD69活化.结论①AMT联合改良的LAT治疗复发胬肉效果良好.②AMT治疗复发胬肉或并睑球粘连胬肉切除术效果较好;用保存羊膜移植未发生排斥反应.     

生物羊膜联合带自体角膜缘干细胞的结膜瓣移植治疗伴睑球粘连的复发性翼状胬肉

目的:观察生物羊膜联合带自体角膜缘干细胞的结膜瓣移植治疗伴睑球粘连的复发性翼状胬肉的临床效果。方法:将68例76眼伴睑球粘连的复发性翼状胬肉患者按年龄、性别、翼状胬肉大小、睑球粘连程度分为A,B两组,A组30例34眼为翼状胬肉切除加生物羊膜移植组,B组38例42眼为翼状胬肉切除加生物羊膜联合带自体角膜缘干细胞的结膜瓣移植组。术后随访6～24mo。观察角膜透明程度,新生血管的有无,胬肉复发及睑球粘连复发情况。结果:A组有不同程度角膜云翳21眼(62%),其中9眼(26%)伴新生血管,4眼(12%)胬肉复发,1例睑球粘连复发。B组有不同程度角膜云翳9眼(21%),其中3眼(7%)伴新生血管,2眼(5%)胬肉复发,无睑球粘连复发患者。两组比较有角膜云翳及新生血管的发生率有显著性差异,复发率无显著性差异。结论:生物羊膜联合带自体角膜缘干细胞的结膜瓣移植治疗伴睑球粘连的复发性翼状胬肉是一种较理想的治疗方法。     

角膜缘干细胞移植联合羊膜移植治疗复发性翼状胬肉睑球粘连

目的:回顾性分析2002-01/2005-01在我院接受治疗复发性翼状胬肉合并睑球粘连的32例患者,探讨角膜缘干细胞移植联合羊膜移植治疗复发性翼状胬肉合并睑球粘连的效果.方法:复发性翼状胬肉合并睑球粘连的32例患者中12例接受了翼状胬肉切除 丝裂霉素 睑球粘连分离术,20例接受了翼状胬肉切除 睑球粘连分离 角膜缘干细胞移植 羊膜移植术.结果:接受翼状胬肉切除 丝裂霉素 睑球粘连分离术的12例患者中,术后6例翼状胬肉、睑球粘连复发;接受翼状胬肉切除 睑球粘连分离 角膜缘干细胞移植 羊膜移植术的20例患者中,术后2例患者翼状胬肉、睑球粘连复发.结论:接受翼状胬肉切除 睑球粘连分离 角膜缘干细胞移植 羊膜移植术术后复发率低,术后刺激症状较轻,翼状胬肉切除 睑球粘连分离 角膜缘干细胞移植 羊膜移植术是治疗复发性翼状胬肉合并睑球粘连的理想方法.     

聚四氟乙烯联合角膜缘干细胞移植治疗复发性翼状胬肉并睑球粘连

目的:探讨聚四氟乙烯联合角膜缘干细胞移植治疗复发性翼状胬肉合并睑球粘连的临床效果。方法:回顾分析2005-01/2008-08在我院接受治疗复发性翼状胬肉合并睑球粘连的62例患者中,20例接受了翼状胬肉切除+睑球粘连分离+结膜瓣移植术,42例接受了翼状胬肉切除+睑球粘连分离+聚四氟乙烯联合角膜缘干细胞移植术。结果:接受翼状胬肉切除+睑球粘连分离+结膜瓣移植术的20例患者中,术后6例翼状胬肉复发,其中4例再次睑球粘连;接受翼状胬肉切除+睑球粘连分离+聚四氟乙烯联合角膜缘干细胞移植术的42例患者翼状胬肉中2例翼状胬肉复发,无1例睑球粘连。结论:翼状胬肉切除+睑球粘连分离+聚四氟乙烯联合角膜缘干细胞移植术是治疗复发性翼状胬肉合并睑球粘连的理想方法。     

人羊膜移植治疗翼状胬肉等眼表疾病的临床观察

目的：观察用人羊膜移植术治疗翼新诗胬肉、角膜热灼伤、化学伤、睑球粘连等眼表疾病的临床疗效。方法：用人羊膜移植术治疗翼状胬肉46例65只眼，其中复发性胬肉16只眼，假性翼状胬肉1只眼，角膜热灼伤、化学伤3例4只眼，睑球粘连2例2只眼，手术均在显微镜下完成。结果：随访3-11个月，羊膜移植手术均一次成功，无免疫排斥反应。翼状胬肉组，角膜透明，无新生血管，巩膜面结膜覆盖良好，充血消失；2只眼复发，复发率为3.1％，成功率96.9％。3例（4只眼）角膜热灼伤、化学伤者，术后均未见继续溶解、穿孔。睑球粘连者，结膜囊形成，睑球粘连者，结膜囊形成，睑球粘连松解，眼球活动基本正常。结论：人羊膜移植是治疗翼状胬肉等眼表疾病较有效方法，它可抑制结膜下及角膜纤维化，促进结膜、角膜的上皮化。     

两种手术方式治疗复发性翼状胬肉伴睑球粘连的疗效对比

目的:角膜缘干细胞移植与羊膜移植治疗复发性翼状胬肉伴睑球粘连的疗效分析。方法:复发性翼状胬肉伴睑球粘连患者80例。按照随机方式分为翼状胬肉切除术联合角膜缘干细胞移植、翼状胬肉切除联合羊膜移植组,每组40例。术后随访6mo,观察翼状胬肉及睑球粘连的复发率。结果:角膜缘干细胞移植组有2例复发(5%),羊膜移植组有8例复发(20%),两组比较有统计学意义(P<0.05)。结论:两种术式均能显著降低复发性翼状胬肉术后复发率,但角膜缘干细胞移植术后复发率更低。     

同种异体羊膜移植治疗翼状胬肉的临床观察

目的 观察用羊膜移植术治疗翼状胬肉、复发性翼状胬肉、睑球粘连的手术技巧及疗效。方法 选择翼状胬肉１６例１６只眼,复发性翼状胬肉１５例１５只眼,睑球粘连８例眼。在显微镜下行羊膜移植联合手术。结果 经过６～１８个月的观察无１例复发,睑球粘连解除,无排斥反应发生,角膜上皮稳定,手术区结膜上皮生长正常。结论 羊膜移植技术是治疗翼状胬肉、复生性翼状胬肉、睑球粘连等眼表疾病的一种较有效的方法。     

人羊膜联合自体角膜缘移植治疗复发性翼状胬肉

目的 探讨人羊膜联合自体角膜缘移植治疗复发性翼状胬肉的临床效果。方法 采用甘油保存或新鲜的人羊膜移植联合自体角膜移植对36例39眼复发性翼状胬肉患者进行治疗,术后随访6个月至4年。结果 角膜上皮均于2周内完全愈合。2例2眼胬肉复发,复发率5．6％。3例3眼发生小柱状睑球粘连,其中1眼下穹隆结膜囊轻度变浅。结论 人羊膜联合自体角膜缘移植术抑制了结膜下纤维组织增生。重建角膜缘部屏障功能,能有效治疗复发性翼状胬肉。     

球结膜瓣移植联合羊膜移植治疗伴睑球粘连的复发性翼状胬肉

目的对伴睑球粘连的复发性翼状胬肉,行球结膜瓣移植联合羊膜移植治疗作回顾性分析。方法 30例伴睑球粘连的复发性翼状胬肉切除后,分离睑球粘连,创面行球结膜瓣移植联合羊膜移植,术后观察羊膜溶解及上皮修复情况。结果随访3-6月,2眼(6.7%)翼状胬肉复发,1眼(3.3%)睑球粘连复发。结论采用球结膜瓣移植联合羊膜移植治疗伴睑球粘连的复发性翼状胬肉,简单易行,成功率高。     

羊膜移植联合带结膜瓣自体角膜缘移植及丝裂霉素C治疗多次复发性翼状胬肉

目的：探讨羊膜移植(AMT)联合带结膜瓣的自体角膜缘移植及术中应用丝裂霉素c(MMc)治疗多次复发性翼状胬肉的疗效。方法：选择多次复发性翼状胬肉20例，进行复发翼状胬肉局部切除，放置丝裂霉素c后取患眼或对侧健眼带结膜瓣的自体角膜缘进行移植，其余缺损部分应用羊膜进行修补。结果：其中19例翼状胬肉未见复发，20例羊膜无排斥反应发生，睑球粘连患者恢复眼球运动功能，复视消失，部分患者视力提高。结论：羊膜移植联合带结膜瓣的自体角膜缘移植及术中应用丝裂霉素c治疗多次复发性翼状胬肉效果良好。     

Strabisme Alternant - Etude clinique - traitement

The author defines motor and sensory alternation: the term alternation should not be used in isolation, it should always be accompanied by the name of the parameter concerned. Sensory alternation is always found together with motor alternation but the reverse is not true.The examining criteria for a diagnosis of sensory alternation are given, sensory alternation must not be confused with alternating inhibition. Working from clinical observations of cases of motor alternating strabismus, the author selects 2 types of binocular sensory relations which allow one to differentiate between:- cases of primary alternating strabismus- cases of secondary alternating strabismusThese forms will develop in different ways; in both cases a cure is possible providing that the right treatment is prescribed and once prescribed carefully followed, etc. It is always a case of serious forms of strabismus whose developmental period is spread over several years.According to the authors, the frequency of cases of true primary strabismus is from 1–3%, the frequency of cases of secondary alternating strabismus varies according to the type of therapy practised on cases of monocular strabismus with amblyopia. These latter will become cases of alternating strabismus under the influence of certain types of therapy carried out over several years (penalization, rocking, alternated occlusion, etc...).Experimental data on kittens confirm clinical data; kittens placed in abnormal environments during the sensitive period will show modification in the distribution of cortical cells and the absence of binocular cells (either because the excitation of the two eyes was not simultaneous, or not identical: artificial strabismus, occlusion, opaque glasses). This disturbances become irreversible after a certain period of exposure (a function of age, length of exposure, etc...).It is thus necessary to bear in mind: 1) the iatrogenic risks of certain orthoptic treatments, 2) the necessity for a binocular form of treatment as soon as possible, as once a certain stage is passed, cortical plasticity diminishes and the elaboration of normal binocular relations becomes impossible.

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Effects of Adenosine Agonists on Intraocular Pressure and Aqueous Humor Dynamics in Cynomolgus Monkeys

The effects of single or multiple topical doses of the relatively selective A₁adenosine receptor agonists (R)-phenylisopropyladenosine (R-PIA) and N⁶-cyclohexyladenosine (CHA) on intraocular pressure (IOP), aqueous humor flow (AHF) and outflow facility were investigated in ocular normotensive cynomolgus monkeys. IOP and AHF were determined, under ketamine anesthesia, by Goldmann applanation tonometry and fluorophotometry, respectively. Total outflow facility was determined by anterior chamber perfusion under pentobarbital anesthesia. A single unilateral topical application of R-PIA (20–250 μg) or CHA (20–500 μg) produced ocular hypertension (maximum rise=4.9 or 3.5 mmHg) within 30 min, followed by ocular hypotension (maximum fall=2.1 or 3.6 mmHg) from 2–6 hr. The relatively selective adenosine A₂antagonist 3,7-dimethyl-1-propargylxanthine (DMPX, 320 μg) inhibited the early hypertension, without influencing the hypotension. Neither 100 μg R-PIA nor 500 μg CHA clearly altered AHF. Total outflow facility was increased by 71% 3 hr after 100 μg R-PIA. In conclusion, the early ocular hypertension produced by topical adenosine agonists in cynomolgus monkeys is associated with the activation of adenosine A₂receptors, while the subsequent hypotension appears to be mediated by adenosine A₁receptors and results primarily from increased outflow facility.