角膜皮样瘤的诊治方法及术后复发原因分析

目的 对角膜皮样瘤诊治方法及术后复发原因的初步探讨.方法 回顾性分析43例经病理证实的角膜皮样瘤的临床、病理资料.19例行皮样瘤切除术,2例行皮样瘤切除+结膜遮盖术,1例行皮样瘤切除+羊膜移植术,21例行皮样瘤切除+角膜板层移植术.结果 随访半年～6年,39例治愈,4例单纯行皮样瘤切除术复发,二次手术行板层角膜移植术,随访5年无复发.结论 治疗角膜皮样瘤应根据角膜受累程度采用不同的手术方式,相应部位的角膜皮样瘤切除联合板层角膜移植术可以减少术后复发的几率.     

深板层角膜移植术的临床应用及疗效

目的临床总结应用深板层角膜移植术治疗圆锥角膜,深及角膜后板层的角膜斑翳,角膜溃疡,边缘性角膜变性以及格子样角膜营养不良的治疗效果,探讨深板层角膜移植术的临床应用适应症。方法总结2001年1月至2005年5月深圳市眼科医院住院行深板层角膜移植的患者共14例(18只眼),其中圆锥角膜2例,(病毒性)角膜斑翳2例,(细菌性)角膜斑翳2例,真菌性角膜溃疡2例,细菌性角膜溃疡3例,边缘性角膜变性3例(5只眼),格子样角膜营养不良2例(4只眼)。记录术后半年复诊视力及角膜曲率,并统计角膜移植并发症的发生。综合评估该手术的临床适应症。结果有2例发生排斥反应,其中1例为病毒性角膜斑翳,1例为真菌性角膜溃疡。有3例原发病复发,2例真菌性角膜溃疡,1例病毒性角膜溃疡。术后视力半年时查0.5以上的有13例,0.1以上的有2例,0.1以下的有3例。结论深板层角膜移植对治疗未及角膜后弹力层的病变有效,但在治疗感染性角膜溃疡及病毒性角膜斑翳的治疗效果差,易发生原发病的复发及角膜移植排斥反应。     

板层角膜移植治疗角膜缘皮样瘤临床分析

目的 评价板层角膜移植(lamellar keratoplasty,LKP)治疗角膜皮样瘤(limbal dermoids)的临床疗效.方法 对22例(22只眼,23处病变)行板层角膜移植治疗的角膜缘皮样瘤患者进行回顾性分析.随访3～48 个月(平均19个月).观察肿瘤治愈率,外观,植片透明度,视力变化及并发症.结果 肿瘤治愈率为100%.19/22例患者(20/23处病变)术后外观明显改善,植片透明.2/22例患者(2/23处病变)外观改善一般,植片轻度浑浊.1/22例患者(1/23处病变)术后发生排斥反应,外观改善差,植片灰白色混浊并见明显新生血管长入.术后最佳矫正视力等于或好于术前.结论 板层角膜移植术是治疗角膜皮样瘤的一种有效方法.早期手术,创伤小,术后反应轻.     

板层角膜移植术治疗角膜皮样瘤的临床观察

目的 观察切除术联合板层角膜移植术治疗角膜皮样瘤的临床效果。方法 对切除术联合板层角膜移植术治疗角膜皮样瘤27例进行回顾性分析,观察术后排斥反应、治疗效果及并发症情况。结果 27例（27眼）手术后随访3～6月治愈率为100％。22例术后植片透明,愈合良好;4例出现假性翼状胬肉经自体角膜缘干细胞移植术后痊愈;1例出现植片下新生血管及植片水肿,经抗排斥治疗后完全恢复。结论 切除术联合板层角膜移植术是一种治疗角膜皮样瘤的有效方法。     

深板层角膜移植治疗圆锥角膜

目的探讨深板层角膜移植治疗圆锥角膜的价值。方法采用深板层全厚角膜供体植片治疗圆锥角膜22例(25眼),对其疗效进行观察、分析。结果术后平均随访5-26个月,术后裸眼视力≥0.2者20例(23眼)矫正视力≥0.4者17例(19眼),矫正视力≥0.7者3例(4眼),发生排斥反应3例(4眼),植片透明20例(23眼),植片半透明2例(2眼)。结论深板层角膜移植治疗圆锥角膜具有对材料要求条件低,不涉及前房及排斥反应低,治疗效果好等优点,在临床上值得推广应用。     

板层角膜移植术联合快速角膜胶原交联治疗难治性真菌性角膜溃疡

目的：观察板层角膜移植术联合快速角膜胶原交联治疗难治性真菌性角膜溃疡的临床效果。

方法：选取2017-01/2018-11在江西医专一附院眼科就诊收住院行板层角膜移植术联合快速角膜胶原交联术治疗的真菌性角膜溃疡的患者18例18眼,对治疗效果进行回顾性分析。观察术后视力、角膜植片透明度的情况及真菌复发、移植片排斥、继发性青光眼、并发性白内障等并发症的发生概率和预后。

结果：术后18例患者全部保全了眼球,术后裸眼视力提高者16眼(89%),视力不变者2眼(11%),角膜移植片发生排斥反应3眼(17%),继发性青光眼2眼(11%),并发性白内障3眼(17%)。植片透明的患者为13眼(72%),植片半透明4眼(22%),植片混浊1眼(6%)。

结论：板层角膜移植术联合快速角膜胶原交联治疗难治性真菌性角膜溃疡能提高真菌性角膜溃疡治愈率,是一种切实可行的治疗方法。     

深板层角膜移植及穿透角膜移植治疗圆锥角膜的对比研究

目的:观察圆锥角膜患者行深板层角膜移植和穿透角膜移植术后视力、角膜曲率及角膜内皮细胞的变化。方法:将2003-01/2009-07在我院行手术治疗的42例47眼圆锥角膜患者分为两组,一组接受深板层角膜移植(27眼),另一组接受穿透角膜移植(20眼)。观察两组患者术后3,6,12,18mo的裸眼视力、最佳矫正视力、角膜地形图改变和角膜内皮细胞状态。结果:深板层角膜移植组术后裸眼视力平均提高4行,最佳矫正视力平均提高7行,无排斥反应发生。穿透角膜移植术后裸眼视力平均提高5行,最佳矫正视力平均提高8行,有5例发生排斥反应。两种术式相比,术后散光程度无明显差异,深板层角膜移植组角膜内皮细胞丢失速率低于穿透角膜移植组。结论:对于非急性期圆锥角膜患者深板层角膜移植术优于穿透角膜移植术。     

板层角膜移植治疗Goldenhar综合征角膜皮样瘤疗效观察

目的 探讨板层角膜移植治疗Goldenhar综合征角结膜皮样瘤的疗效.方法 对6例(7只眼)Goldenhar综合征角结膜皮样瘤进行皮样瘤切除+板层角膜移植术,术后随访,观察角膜植片、病灶愈合及视力恢复情况.结果 6例(7只眼)未见皮样瘤复发,1只眼术后2周出现植片轻度混浊,经抗排斥治疗后植片透明,其余植片透明,病灶愈合良好,部分病例视力不同程度提高.结论 Goldenhar综合征角结膜皮样瘤治疗的关键是瘤体的彻底切除并恢复眼表正常解剖结构,而手术切除联合板层角膜移植是治疗Goldenhar综合征角结膜皮样瘤的有效方法.     

板层角膜移植术治疗真菌性角膜溃疡穿孔的临床观察

目的观察板层角膜移植术治疗真菌性角膜溃疡穿孔的临床疗效。方法对20例（20只眼）真菌性角膜溃疡穿孔患者,12只眼应用甘油冷冻保存的角膜进行板层角膜移植术,8只眼进行结膜瓣遮盖术。结果板层角膜移植术组疗效明显优于结膜瓣遮盖组,12只眼角膜穿孔均得到控制。结论在没有新鲜角膜材料的情况下,应用冷冻的角膜对真菌性角膜溃疡穿孔的患者做板层角膜移植术有一定的临床价值。     

板层角膜移植术治疗真菌性角膜溃疡疗效分析

目的探讨板层角膜移植术治疗中、浅层真菌性角膜溃疡的手术适应证及临床疗效。方法67例（67眼）真菌性角膜溃疡经抗真菌药物治疗效果不满意者行板层角膜移植术,术后观察复发情况、角膜植片透明度及免疫排斥反应。结果术后随访6个月至2年,其中66例（66眼）术后有效控制了感染,植片透明,无排斥反应,术后视力提高至0.3-0.6。1眼真菌感染复发。结论板层角膜移植可有效治疗中、浅层真菌性角膜溃疡。     

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.