阈值前早产儿视网膜病变的处理

目的评价阈值前早产儿视网膜病变(retinopathy of prematurity,ROP)的处理方法及其疗效。方法回顾性分析经双目间接眼底镜检查诊断为阈值前ROP的早产儿33人(59只眼),根据国际早产儿视网膜病变分类(International classification of retinopathy of prematurity,ICROP)和早产儿视网膜病变早期治疗协作组(Early treatment for retinopathy of prematurity cooperative group,ET-ROP)的规定将其分成阈值前病变1型和2型,收集患儿的性别、孕周、出生体重、治疗方式等信息,随访其阈值前ROP的演变和预后。结果阈值前病变1型共42只眼(71.2%),于确诊后平均1.5d进行激光或冷冻治疗,其中31只眼病变完全退化,包括初次治疗即退化者23只眼,通过再次激光或冷冻治疗退化者8只眼,11只眼出现不良预后,包括8只眼出现黄斑牵引,3只眼进展为视网膜脱离。阈值前病变2型共17只眼(28.8%),10只眼于确诊后平均9天进行激光治疗,其中9只眼病变退化,1只眼出现黄斑牵引;7只眼密切随访,其中1只眼出现周边部局限性玻璃体增殖,6只眼病变均逐渐退化。患儿平均随访(119±147)d。结论对阈值前病变1型进行激光或(和)冷冻治疗能减少其不良预后,不必等待其进展至阈值病变,对再次治疗者应密切随访其病变情况;对阈值前病变成型可密切随访,待其病变进展至1型时予以治疗。     

激光光凝治疗早产儿视网膜病变的疗效分析

目的 观察激光光凝治疗早产儿视网膜病变（ROP）的临床效果。方法 临床确诊为阈值前Ⅰ型和阈值期的ROP患儿64例127只眼纳入研究。其中,阈值前Ⅰ型ROP 15例30只眼,占患眼的23.6%;阈值期ROP 49例97只眼,占患眼的76.4%。所有患儿均于确诊后72 h内在全身麻醉状态下行间接检眼镜引导的532 nm或810 nm激光光凝治疗。阈值前Ⅰ型ROP 15例30只眼中,行532 nm激光光凝治疗6例12只眼,行810 nm激光光凝治疗9例18只眼。阈值期ROP 49例97只眼中,行532 nm激光光凝治疗37例73只眼,行810 nm激光光凝治疗12例24只眼。治疗后随访时间12~36个月,平均随访时间18.4个月。观察患儿病变退化情况。以1次激光光凝治愈率、重复治疗率、不良预后发生率、全身及局部并发症的发生情况为疗效观察指标,对比分析阈值前Ⅰ型与阈值ROP,以及532 nm与810 nm激光光凝治疗的效果差异。结果 127只眼中,附加病变消失、嵴消退、病变完全退化125只眼,占98.4%;颞侧周边部残存膜状牵拉、视网膜血管颞侧牵拉移位2只眼,占1.6%。未出现进展为4期或5期严重不良预后者。经1次激光光凝治疗病变完全退化者118只眼,占92.9%;经2~3次激光光凝治疗病变完全退化者6只眼,占4.7%;因近周边部病变较重,激光光凝反应欠佳,行冷冻治疗者3只眼,占2.4%。64例127只眼中,发生麻醉意外1例,占患儿的1.6%;出现结膜下出血12只眼,占患眼的9.4%;发生白内障1只眼,占患眼的0.8%。经532 nm或810 nm激光光凝治疗阈值前Ⅰ型和阈值期ROP的治疗效果相当,差异无统计学意义（P＞0.05）。但需要重复激光光凝治疗、附加冷冻治疗、出现不良预后及严重并发症者主要出现在阈值期532 nm激光光凝治疗的患儿中。结论 激光光凝可有效治疗阈值前Ⅰ型和阈值期ROP。     

半全视网膜激光光凝术治疗阈值前和阈值期早产儿视网膜病变的疗效

目的：观察半全视网膜激光光凝治疗阈值前和阈值期早产儿视网膜病变(ROP)的临床疗效和安全性。

方法：经临床确诊的ROP患儿25例46眼纳入研究。其中,阈值前病变24眼,阈值病变22眼。46眼中,Ⅰ区病变20眼,Ⅱ区病变26眼。所有患儿均在全身麻醉下采用波长为810nm 的Iridis激光机经双目间接检眼镜输出,保留Ⅰ区及其颞侧2个视乳头直径区域不接受光凝,对其余无血管区进行光凝治疗。随访42～881(362±59.6)d,进行疗效分析。

结果：一次光凝术后病变完全消退38眼(83%); 进展期患眼8眼(17%)经Ⅰ区颞侧2PD区域补全激光光凝治疗,二次光凝治疗时间在首次治疗术后33～45d,病变完全消退。未出现局部纤维增生、局限性视网膜脱离等严重并发症。阈值前病变组24眼中,病变完全消退22眼(92%); 阈值病变组22眼中,病变完全消退10眼(73%)。两组病变完全消退率比较,差异有统计学意义(P<0.05)。

结论：半全视网膜激光光凝术可以有效治疗阈值前和阈值期早产儿视网膜病变,对周边视网膜破坏少。     

早产儿视网膜病变七年筛查治疗结果临床分析

目的 观察遵循我国早产儿视网膜病变(ROP)防治指南进行ROP筛查和及时治疗对ROP预后的影响。方法 2003~2010年7年间筛查确诊的1379例ROP患儿纳入研究。所有患儿均由经验丰富的小儿视网膜专科医生用双目间接检眼镜或二代广角数码视网膜成像系统（RetCamⅡ）检查确诊,并密切随访记录病变发展过程。对于1期病变,2周复查1次,直至病变完全退化、视网膜血管长到锯齿缘。对于2期病变或阈值前病变,1周复查1次,若病变程度下降,改为2周复查一次,直至病变完全退化。对于3期病变或怀疑急进性后部型ROP,1周复查2~3次,如达到阈值病变或阈值前病变1型,在72 h内进行激光光凝治疗。激光光凝治疗后每1~2周复查ROP变化,病变退化者随访处理,病变进展者行视网膜激光光凝或视网膜冷冻治疗,出现视网膜脱离的4、5期患者接受巩膜环扎手术、闭合式玻璃体切割手术治疗。本组患儿随访6个月~2年,平均随访时间为152.3 d。结果 7年间筛查确诊ROP 1379例2758只眼。患儿出生孕周26~35周,平均孕周30.6周。出生体重800~2200 g,平均体重1424.6 g。其中,206例400只眼达阈值病变或阈值前病变1型需进行激光光凝治疗,占患眼数的14.5%。激光光凝治疗后,345只眼病变完全退化,占治疗眼数的86.2%;55只眼进展到视网膜结构不良,占治疗眼数的13.8%。其中,10只眼仅有视盘黄斑牵引,32只眼进展至4期,13只眼进展至5期。未达到需要治疗程度的2358只患眼病变均退化。病变自然退化或干预后退化者共2703只,占98.0%;视网膜结构不良55只眼,占2.0%。其中,4期占1.2%,5期占0.5%。进展至4、5期的45只眼中,6只眼行巩膜外环扎或垫压手术治疗,视网膜均复位,但残留视盘黄斑牵引;39只眼行保留或不保留晶状体的闭合式玻璃体切割手术治疗。17只4a期患眼视网膜均复位,15只4b期患眼中10只眼视网膜复位,5只眼未复位,13只5期患眼中仅4只眼视网膜复位,1只眼视网膜大部复位。结论 及时有效的筛查和早期治疗能够减少导致视网膜结构不良的严重ROP的发生。     

高危阈值前和阈值病变早产儿视网膜病变激光光凝治疗疗效分析

目的 观察激光光凝治疗高危阈值前和阈值病变早产儿视网膜病变（ROP）的临床疗效和安全性。方法 临床检查确诊的97例ROP患儿186只眼纳入研究。其中,高危阈值病变88只眼,阈值病变98只眼。186只眼中,1区病变70只眼,2区病变116只眼。所有患儿均在全身麻醉下采用波长为810 nm的Iridis激光机经双目间接检眼镜输出进行激光光凝治疗。治疗后随访35～852 d,平均随访时间(316±274) d。观察病变完全消退和病变进展情况。结果 186只眼中,病变完全消退168只眼,占90.3%;出现局部纤维增生10只眼,占5.4%;进展为局限性视网膜脱离8只眼,占4.3%。高危阈值病变组88只眼中,病变完全消退84只眼,占95.5%;病变进展4只眼,占4.5%。阈值病变组98只眼中,病变完全消退84只眼,占85.7%;病变进展14只眼,占14.3%。两组病变完全消退率比较,差异有统计学意义（χ2=3.98,P＜0.05）。1区病变70只眼中,病变消退56只眼,占80.0%;病变进展14只眼,占20.0%。2区病变116只眼中,病变消退112只眼,占96.6%;病变进展4只眼,占3.4%。1区病变进展眼数明显高于2区病变进展眼数,差异有统计学意义（χ2=11.86,P＜0.01）。未观察到与治疗相关的并发症。结论激光光凝治疗高危阈值前和阈值病变ROP均有较好疗效,提前干预能减少其不良预后;无与治疗相关的并发症发生。     

经双目间接检眼镜激光光凝治疗严重早产儿视网膜病变

目的评价经双目间接检眼镜激光光凝治疗的严重早产儿视网膜病变（ROP）的疗效和安全性。方法回顾分析激光光凝治疗的ROP阈值病变、阈值前病变患儿126例241只眼的临床资料。所有患儿均于确诊后3d内在眼表面麻醉下采用半导体倍频YAG激光经双目间接检眼镜输出进行视网膜激光光凝，治疗后平均随访129．4d。结果所有接受治疗的患儿中，ROP退化203只眼，占84．2％；视网膜结构不良预后38只眼，占15．8％。后者包括黄斑牵引增生条索16只眼，占不良预后的42．1％；进展至4A期（未累及黄斑的局限视网膜脱离）4只眼，占10．5％；4B期（累及黄斑的局限视网膜脱离）7只眼，占18、4％；5期（完全视网膜脱离）11只眼，占28．9％。最常见的治疗后眼部并发症包括结膜下出血（38只眼，占15．8％）和感染性结膜炎（22只眼，占9．1％），呼吸暂停等全身并发症少见（1例，占0．8％）。结论经双目间接检眼镜激光光凝治疗ROP阈值病变和阈值前病变有效、安全。     

玻璃体腔注射康柏西普治疗早产儿视网膜病变的临床疗效

目的：观察玻璃体腔注射康柏西普治疗早产儿视网膜病变（ROP）的安全性和有效性。方法：回顾性病例研究。选择2015年2月至2016年5月郑州市第二人民医院和登封市妇幼保健院ROP筛查并诊断为 急进性后极部早产儿视网膜病变（AP-ROP）、阈值期ROP或阈值前期1型ROP的患儿26例（52眼）。其中Ⅰ区病变17例,Ⅱ区病变9例。所有患儿在确诊后24 h内玻璃体腔注射10 mg/ml康柏西普0.025 ml （含康柏西普0.25 mg）。随访时间为21～49（31.2±12.5）周。病情复发或对康柏西普治疗无反应者,给予重复康柏西普注射或激光光凝治疗。随访期间观察患儿视网膜血管变化情况以及眼部或全身不良反应发生情况。结果：52眼中,经单次康柏西普治疗有效为46眼（88%）,病变完全消退,视网膜血管发育至Ⅲ区。重复康柏西普注射治疗2眼,占4%;经补充激光光凝治疗4眼,占8%,其中3眼病变复发行玻璃体切割术,占所有患眼的6%,纤维增生膜持续加重,发生视网膜脱离,2眼术后视网膜完全复位,1眼术后视网膜部分复位,包括AP-ROP 1眼,阈值期ROP 2眼,均为Ⅱ区病变,复发时间为10～17（13.2±1.8）周。所有患儿随访期间均未发生局部及全身不良反应。结论：康柏西普注射治疗ROP患儿安全有效。部分治疗无反应者,需手术联合激光光凝治疗。     

深圳早产儿视网膜病变筛查结果分析

目的 了解深圳地区三间医院早产儿视网膜病变（ROP）发病情况。方法 2004年 1月至2007年1月，对深圳市人民医院、深圳市妇幼保健院和深圳市眼科医院三间医院出生体重<2000g的早产儿或根据儿科医生的要求超过以上标准但患有严重疾病的早产儿共1372例2744只眼采用双目间接检眼镜和（或）广角数码儿童视网膜成像系统（RetCamII）进行 ROP筛查，发现阈值或阈值前期Ⅰ型ROP及时进行冷冻或激光 光 凝治疗。所有患儿随访至视网膜完全血管化或病变退化。结果 所有早产儿中218例436只眼发生ROP，发病率15.9％，其中阈值或阈值前期Ⅰ型ROP190只眼，发病率6.9％；4~5期ROP 16只眼，发病率0.6%；未到阈值或阈值前期Ⅰ型ROP 230只眼，发病率8.4 %。出生体重≤1500 g者435例870只眼，占所有筛查对象的31.7％；236只眼发生ROP，发病 率27.1%：其中阈值或阈值前期Ⅰ型ROP 126只眼，发病率14.5％；4~5期ROP10只眼，发病 率1.1%，未到阈值或阈值前期Ⅰ型ROP 100只眼，发病率11.5%。出生体重≤1250 g者274 只眼，占所有筛查对象的10％；108只眼发生ROP，发病率39.4%：其中阈值或阈值前期Ⅰ型 RO P 60只眼，发病率21.9%；4~5期ROP 4只眼，发病率1.4%；未到阈值或阈值前期Ⅰ型ROP 4 4 只眼，发病率16％。所有早产儿、出生体重≤1500g者和出生体重≤1250g者的RO P发病率（χ²=60.43，P<0.001）、阈值或阈 值前期Ⅰ型ROP发病率（χ²=46.82，P<0001）和未到阈值或阈值前期Ⅰ型ROP发病 率 （χ²=10.71，P=0.005）比较，差异均有统计学意义。结论 深圳地区三间医院早产儿ROP的总体发生率较 低，但需要治疗的阈值或阈值前期Ⅰ型重症ROP发病率高。出生体重是影响ROP发病 率的重要因素。     

经双目间接检眼镜激光光凝治疗早产儿视网膜病变

目的观察经双目间接检眼镜激光光凝治疗早产儿视网膜病变（ROP）的临床应用疗效。方法回顾分析我院激光光凝治疗ROP阈值前患儿3例（5只眼）的临床资料。患儿确诊后3d内基础麻醉下使用半导体532nm激光经双目间接检眼镜输出激光光凝。结果激光治疗1次后,1例（2只眼）病变退化,2例（3只眼）补充激光1次,随访3个月,病变均退化。治疗后均未出现全身及眼部并发症。结论及时经双目间接检眼镜激光光凝治疗ROP阈值前病变安全、有效。     

闭合式三切口玻璃体视网膜手术治疗4期和5期早产儿视网膜病变

目的：探讨闭合式三切口玻璃体视网膜手术治疗4期和5期早产儿视 网膜病变（ROP）的临 床效果。方法：回顾性分析26例ROP患儿32只眼行闭合式玻璃体视网膜手 术治疗的临床资料。其中， 男性18例，女性8例；出生孕周27~35周，平均孕周29.4周；出生体重960~2200 g，平均体 重 1434.6 g。手术时年龄为出生后50~705 d，平均158.3 d。32只眼中ROP5期病变13只眼 ， 4期病变19只眼（4A期10只眼，4B期9只眼）。其中11只眼因ROP阈值病变或阈值前病变1型接 受间接检眼镜激光光凝治疗，1只眼再次接受冷冻治疗，病变未能控制进展至4期或5期。玻 璃体视网膜手术采用闭合式三切口入路，其中11只眼保留晶状体，21只眼行晶状体切除。手 术后随访 2~24个月，主要随访视网膜复位情况。结果：所有患儿手术过程顺利。4 期的19只眼中，4A期 的10只眼视网膜均完全复位，占100%。3只眼有视盘黄斑牵引；4只眼分别于视盘前、鼻侧视 网膜前及颞侧周边部残余机化增生膜；1只眼手术后玻璃体少量积血，2周后吸收；1只眼手 术 后并发白内障。4B期的9只眼，视网膜完全复位6只眼，占66.7%。但均周边广泛瘢痕机化 ，1只眼有视盘黄斑牵引；另外3只眼视网膜未复位，手术后即有玻璃体积血，其中2只眼合 并前房积血。5期的13只眼，3只眼视网膜完全复位，占23.1%。其中2只眼周边广泛瘢痕机 化，视网膜血管细，视盘色淡；1只眼颞侧视网膜皱襞；1只眼视网膜大部分复位，占7.7% ，鼻侧视网膜有增生膜和浅脱离；另外7只眼视网膜均未复位。结论：4 期ROP 通过保留或不保留晶状 体的闭合式三切口玻璃体视网膜手术治疗，能够使视网膜有效解剖复位，手术成功率较高； 但对于5期ROP，玻璃体视网膜手术效果差，成功率较低。     

Prospective randomized evaluation of diode-laser and cryotherapy in prethreshold retinopathy of prematurity

PURPOSE: To study the efficacy of indirect diode laser photocoagulation and cryotherapy in prethreshold retinopathy of prematurity (ROP). METHODS: Thirty-six eyes of 18 premature infants less than 34 weeks gestational age and/or less than 1600 g birth weight with prethreshold ROP were prospectively randomized to treatment with either indirect laser photocoagulation or cryotherapy. Prethreshold ROP was defined as any stage of ROP in zone I with plus disease; or stage 3 with three or more contiguous clock hours or five or more total clock hours of involvement of retina in zone II with plus disease but less than threshold disease. Regression of the ROP was assessed for a minimum period of 6 months. RESULTS: Regression of ROP occurred in all 36 eyes (100%) in both groups. CONCLUSIONS: Excellent results are achieved if ROP is treated at the prethreshold stage with both indirect laser photocoagulation and cryotherapy. Although laser has definite advantages, cryotherapy can be considered as an alternative modality of treatment in developing countries due to economic reasons.     

广角数码儿童视网膜成像系统引导下激光光凝治疗早产儿视网膜病 变

目的 观察在广角数码儿童视网膜成像系统（RetCam II）在激光 光凝治疗早产儿视网膜病变（ROP）中的应用价值。 方法 回顾分析连续 发现的阈值ROP或阈值前Ⅰ型ROP患儿共30例58只眼， 其中36只眼为阈值前Ⅰ型ROP，19只眼为阈值ROP，3只眼为外院冷冻术后有冷冻遗漏 区ROP；1区ROP 8只眼，2区ROP 50只眼。54只眼 （93.1％）进行了一次激光光凝， 4只眼（6.9％）进行了2次激光光凝。 应用半导体532 nm激光经双目间接检眼镜激光光凝周边视网膜无血管区。手术前后 分别进行RetCam II眼底检查，手术中对激光光凝遗漏区即刻进行补充治疗。治疗后随访时 间3～11个月，平均5-5个月。 结果 54只眼1次激光光凝术后1～3周反 应良好，ROP病变得到控制。4只眼行第2次激光光凝术后，2只眼病变静止、消退；2只眼发 生后极 部局限性牵拉性视网膜脱离。随访结束时2只眼（3.4％）发生视网膜不良结构后果。 结论 激光光凝手术前后行RetCamⅡ检查在治疗ROP时能够有效避免激光光凝 “遗漏区”，提高一次激光光凝成功 率，减少手术后视网膜不良结构后果发生率。     

Combined use of cryotherapy and diode laser photocoagulation for the treatment of threshold retinopathy of prematurity.

PURPOSE: Cryotherapy and indirect laser retinal photoablation are both effective in the treatment of retinopathy of prematurity (ROP). We describe the safety, efficiency, and effectiveness of combined cryotherapy and diode laser photocoagulation to treat threshold ROP. METHODS: Records of patients developing threshold ROP from January 1, 1996 through December 31, 1998, were retrospectively reviewed to identify those treated with combined cryotherapy and photocoagulation and followed up for at least 45 days postoperatively. Diode laser was used to ablate posterior avascular retina, and cryotherapy was used for anterior retina. Data reviewed included ocular and systemic complication rates, treatment duration, number of laser burns, most recent fundus examination, visual acuity, and refraction. RESULTS: In 13 patients, 23 eyes received combined treatment. No intraoperative complications occurred. Mean duration of anesthesia and treatment was 35 +/- 8 minutes/eye. A mean of 117 +/- 84 laser burns/eye were applied. In 20 of 23 eyes (87.0%), anatomic outcome was favorable at last examination. In 13 of 16 eyes (81.3%), functional (visual acuity) outcome was favorable (visual acuity better than 20/200) at 1 year. At 6 months or later, 14 of 16 eyes (87.5%) measured were myopic, of which 5 (31.3%) were highly myopic (> 6 diopters). CONCLUSIONS: The effectiveness of treating ROP with combined cryotherapy and diode laser photocoagulation compares with that of either modality alone. By decreasing the number of laser applications, combined therapy may be faster and technically easier for eyes with very posterior ROP. This may decrease the number of complications seen when either excessive cryotherapy or laser retinal photoablation is used.     

Koagulationstherapie bei Frühgeborenenretinopathie

PURPOSE: To analyze and compare the anatomical and functional outcome following cryotherapy or laser therapy for ROP. METHODS: Between April 1991 and February 2002, 127 eyes with ROP (65 patients) were treated after threshold ROP was reached. Ten additional eyes with zone I disease were treated with prethreshold. All patients were followed up until a stable retinal situation occurred. RESULTS: An "unfavorable outcome," as described in the Cryo ROP study, occurred in 1 of 91 (1%) eyes with laser treatment and in 3 of 46 (6.5%) eyes with cryotherapy. Temporal dragging of vessels was noticed in 6 of 91 eyes (6.6%) with laser treatment vs 7 of 46 eyes (15.2%) with cryotherapy, respectively. Visual acuity > or =20/25 was achieved in 39.2% in eyes with laser therapy and in 17.6% with cryotherapy (p<0.05). CONCLUSION: A strict screening protocol and treatment at onset of threshold disease results in an excellent anatomical and functional outcome. The results of laser therapy were superior over cryotherapy, indicating that laser treatment is the therapy of choice.     

Combined treatment with laser photocoagulation and cryotherapy for threshold retinopathy of prematurity

PURPOSE: To report the structural, functional, and refractive outcome, safety, and effectiveness of combined cryotherapy and diode laser indirect photocoagulation in the treatment of threshold retinopathy of prematurity (ROP). METHODS: Medical records of patients developing threshold ROP between 1995 and 2003 were reviewed to identify those with combined treatment and followed up for at least 4 years postoperatively. A total of 94 patients (172 eyes) received combined treatment. Data consisted of grade of ROP pre- and postoperatively, most recent fundus examination, birthweight, visual acuity, complications, and refraction. Diode laser was used to ablate posterior avascular retina, and cryotherapy was used for anterior retina. RESULTS: A total of 149 (87%) eyes responded to combined treatment and they had favorable anatomic outcome at last examination. In 131 eyes (76%), functional outcome was favorable (visual acuity better than 20/200) at last examination. Perioperative complications included hemorrhages in 26% of eyes, which resorbed spontaneously. Mean duration of treatment was 31 minutes/eye. At final visit (4 to 12 years), 115 eyes (66.8%) refracted were myopic, of which 26 (22.5%) had high myopia over -6 diopters. CONCLUSIONS: Combined cryotherapy and diode laser photocoagulation for ROP in our patients resulted in regression of threshold ROP with relatively successful structural and functional outcomes. Combined therapy may be faster and useful for eyes with very posterior ROP. This may decrease the number of complications occurring when excessive cryotherapy or laser photoablation must be used in zone 1 ROP.     

早产儿视网膜病变激光光凝治疗效果及预后影响因素分析

目的:观察激光光凝术治疗阈值前Ⅰ型和阈值期早产儿视网膜病变(ROP)的临床效果,分析光凝术后病变进展的影响因素。方法:回顾分析激光光凝治疗ROP患者46例89眼,其中阈值前Ⅰ型57眼,阈值期32眼。采用810nm激光对周边视网膜无血管区进行光凝治疗。根据光凝术后结果分为病变消退组和进展组。随访视网膜解剖结构和ROP病变的变化,分析ROP病变部位、病变程度、光凝点数量、机械辅助呼吸、败血症、新生儿肺炎等因素与光凝术后病变进展的相关性。结果:ROP89眼经激光光凝治疗后病变完全消退79眼(89%),病变进展10眼(11%)。光凝治疗ROP病变消退组与进展组比较,出生胎龄、出生体重、首次光凝校正胎龄差异无统计学意义(P=0.668,0.495,0.143)。病变进展组的Ⅰ区病变、阈值病变、急性进展性后极部早产儿视网膜病变(AP-ROP)、光凝点数量均较病变消退组明显增加,差异有统计学意义(P=0.035,0.017,0.000,0.031)。Logistic回归分析结果显示,AP-ROP与光凝术后病变进展有关(P=0.001)。AP-ROP患眼光凝术后病变进展的可能性是非AP-ROP患眼的12.167倍(95%CI:2.733～54.154)。结论:激光光凝术能有效控制早期ROP的病变进展,使大部分阈值前Ⅰ型和阈值期ROP病变完全消退。急性进展性后极部早产儿视网膜病变光凝术后容易发生视网膜脱离,是影响光凝术后疗效的最主要因素。