黄斑脉络膜新生血管的PDT与TTT疗效对比观察

目的 比较经瞳孔温热疗法(TTT)与光动力疗法(PDT)治疗黄斑脉络膜新生血管的疗效.方法 对比分析渗出性老年黄斑变性(AMD),特发性脉络膜新生血管,病理性近视.眼底血管样条纹继发黄斑CNV97例101只眼治疗后1个月,3个月的矫正视力(BCVA),眼底荧光血管造影(FFA).治疗前均检杏BCVA、FFA、光学相干断层扫描(OCT),部分病例行吲哚青绿脉络膜血管造影(ICGA).其中PDT治疗52例54只眼,,TTT治疗45例47只眼.结果 PDT与TTT治疗后1月、3月矫正视力比较,PDT治疗组提高2行及2行以上与TTT治疗组比较差异无统计学意义(x2=0.27,P＞0.05,x2=0.034,P＞0.05).PDT治疗后1、3月视力提高或不变(稳定)分别有25只眼(46.2%),20只眼(37%),TTT几治疗后1、3月视力提高或不变分别有14只眼(29.8%),16只眼(34%),治疗后1月两组比较差异有统计学意义(x2=3.96,P＜0.05),治疗后3月两组比较差异无统计学意义(x2=1.78,P＞0.05).典型性或典型性为主性CNV PDT与TTT治疗后矫正视力比较,治疗后1、3月PD个组分别有40%,54%,54%,TTT治疗组分别有12.5%,12.5%PD个组视力提高2行或2行以上.两组比较差异有统计学意义(x2=7.57,P＜0.01,x2=4.14,P＜0.05).隐匿性CNVPDT与TTT治疗后矫正视力比较,治疗后1、3个月,PDT与TTT组视力无提高.治疗后1月PDT治疗组视力不变2只眼,TTT组5只眼,两组比较差异无统计学意义(x2=1.67,P＞0.05).治疗后3月两组视力均下降.PDT与TTT治疗后1、3月CNV渗漏比较,治疗后1月PDT治疗组控制或减轻CNV的荧光渗漏要好于TTT治疗组,两组比较差异有统计学意义(x2=6.64,P＜0.05.治疗后3月比较差异无统计学意义(x2=1.2,P＞0.05).结论 PDT对典型性或典型性为主CNV的治疗,随访短期内(1～3个月)在视力、及CNV渗漏方面明显优于TTT治疗.无论PDT或TTT的单一治疗对隐匿性CNV的视力提高作用不大,对于典犁性CNV或隐匿性CNV可以进行PDT与TTT的交叉治疗,但其疗效仍有待长期随访,并进行多样本及设立对照组观察比较.     

经瞳孔温热疗法治疗渗出型老年性黄斑变性合并中心凹下脉络膜新生血管

目的 观察经瞳孔温热疗法(TTT)治疗渗出型老年性黄斑变性(AMD)合并中心凹下脉络膜新生血管(CNV)的疗效.方法 回顾分析经TTT治疗的渗出型AMD患者41例44只眼的临床资料.所有患者均经荧光素眼底血管造影(FFA)检查确诊.其中,隐匿性CNV24例26只眼,典型性CNV12例12只眼,微小典型性CNV5例5只眼.采用810 nm半导体激光进行TTT治疗.根据病灶大小选择光斑直径范围1.20～3.00 mm,能量范围160～400 mw,时间60 s.治疗次数1～3次.平均治疗1.48次,治疗后随访3～24个月,平均随访10.80个月.末次随访者40例42只眼.分别以治疗后1、3个月及末次随访时视力、眼底、FFA及光相十断层扫描(OCT)检查结果作为患眼视功能及病灶变化的观察指标,对比观察治疗前后视力改变、眼底出血渗出吸收、CNV闭合情况.结果 末次随访的42只眼中,视力不变或提高者35只眼,占83.34%;视力较治疗前减退者7只眼,占16.67%.OCT检查显示,治疗后1、3个月和末次随访时黄斑区渗液者减少率分别为79.50%、86.40%和88.10%.治疗后3个月,所有患眼黄斑容积较治疗前显著减少,差异有统计学意义(t=1.96,P=0.01);但治疗后1个月和末次随访时黄斑容积较治疗前相比,差异无统计学意义(t=1.17,0.92;P=0.19,0.83).FFA检查显示,末次随访时隐匿性、典型性和微小典型性CNV的闭合率分别为79.16%、46.15%和60.00%.仅6只眼渗漏较治疗前增加.其中,典型性CNV 5只眼,微小典型性CNV1只眼.结论 TTT治疗渗出型AMD合并典型性、隐匿型及微小典型性CNV均有一定效果.     

经瞳孔温热疗法治疗高度近视性脉络膜新生血管

目的通过分析经瞳孔温热疗法（TTT）治疗高度近视性脉络膜新生血管（CNV）的临床特点和不同影像学表现,以评估TTT疗法对治疗高度近视性CNV的安全性的适应范围。方法荧光素眼底血管造影（FFA）确诊的高度近视性CNV患者24例（25只眼）,采用810nm半导体激光治疗。其中典型性CNV者17只眼,隐匿性CNV者6只眼,混合性（微小典型性）CNV者2只眼。按CNV发病部位分为旁中心凹（中心凹外200～500μm）CNV者10只眼,黄斑区（中心凹50μm外血管弓内）CNV者15只眼。治疗后1个月开始随访,治疗次数1～3次,随访时间6～22个月不等,平均9.6个月,随访时检查视力及眼底,并通过光相干断层扫描（OCT）和FFA观察眼底出血和渗出吸收的情况以及CNV的闭合情况。结果同治疗前相比,末次随访时视力不变或提高的患眼为65%,视力较治疗前减退的患眼为35%。TTT治疗后1、3个月和末次随访时,OCT观察的黄斑区渗液较治疗前减少者分别占44%、52%、50%。治疗前、治疗后3个月、末次随访时,黄斑体积分别为（6.88±0.21）mm3、（6.81±0.27）mm3、（6.73±0.29）mm3,但统计学分析无显著差异。末次随访时CNV的FFA检查显示在隐匿性、典型性和微小典型性CNV闭合率分别为100%、56.25%和100%,仅4只眼荧光渗漏增加,均为典型性。结论TTT治疗高度近性视脉络膜CNV有良好的安全性和较好疗效。对隐匿性CNV的疗效可能优于典型性和微小典型性。     

光动力疗法治疗渗出型老年性黄斑变性的初步报告

目的 观察单次光动力治疗(photodynamic therapy,PDT)对渗出型老年性黄斑变性(age-related macular degeneration,AMD)脉络膜新生血管(choroidal neovascularization,CNV)的近期治疗效果。 方法 回顾分析经荧光素眼底血管造影(fundus fluorescein angiography, FFA)、吲哚青绿脉络膜血管造影(indocyanine green angiography, ICGA)以及光学相干断层扫描(optic coherence tomography,OCT)检查确诊的5例渗出型AMD患者的7只患眼行PDT治疗前及治疗后随访观察1周和1个月时的临床资料,主要以视力、FFA及(或)ICGA、OCT的改变为观察指标,评价PDT对渗出型AMD的治疗效果。 结果 7只患眼在治疗后1个月视力均无下降。治疗后1周时除1只眼在ICGA后期仍可观察到CNV有轻微渗漏外,其余6只眼FFA及(或)ICGA均显示CNV渗漏停止;OCT检查显示CNV有不同程度缩小,CNV周围视网膜脉络膜水肿及神经上皮脱离明显好转。但在治疗后1个月时观察到有2只眼在原渗漏病灶处又有渗漏灶出现。 结论PDT 治疗可以在短期内封闭AMD的CNV,使其停止渗漏,且不影响视力。(中华眼底病杂志,2000,16:213-216)     

光动力疗法治疗渗出型老年性黄斑变性四年临床观察总结

目的 总结4年来光动力疗法（PDT）治疗渗出型老年性黄斑变性(AMD)的临床疗效，以评价PDT的长期治疗效果。 方法 回顾73例经双目间接检眼镜、荧光素眼底血管造影(FFA)、吲哚青绿血管造影(ICGA)检查确诊的渗出型AMD患者的95只患眼行PDT治疗前后的临床资料，对比分析其视力、眼底像、FFA、ICGA和光相干断层扫描(OCT)检查结果的变化。73例患者平均年龄67.8岁，就诊时最佳矫正视力数指/10 cm～1.0。95只眼PDT平均治疗次数为1.5次，治疗后随访时间为3个月～4年。 结果 PDT治疗后末次随访时，39只眼视力提高≥2行，占41.1％；51只眼视力波动在1行以内，占53.7％；5只眼视力下降≥2行，占5.3％ 。所有患眼眼底出血和渗出均减轻。FFA或FFA联合ICGA检查显示：58只眼脉络膜新生血管（CNV）渗漏完全停止，转为瘢痕期，占61.05％；6只眼CNV部分闭合， 占6.32％；22只眼CNV小部分闭合，占23.16％；9只眼CNV复发，占9.47％。早期AMD患者12只眼经过1次PDT治疗后，最佳矫正视力0.6～1.5，CNV完全闭合，OCT检查显示黄斑区水肿及神经上皮脱离消失。随访时间最长达4年，未见有复发，视力保持稳定。 结论 单次和重复PDT治疗渗出型AMD长期疗效较好，安全性较高。对于早期渗出型AMD患者微小典型性CNV，单次PDT治疗可以使其完全封闭，使患者视力保持在较好的水平。 （中华眼底病杂志，2004，20：275-279）     

经瞳孔温热疗法治疗湿性年龄相关性黄斑变性的参数研究

目的评价三种不同参数的经瞳孔温热疗法(transpupillarythermotherapy,TTT)治疗湿性年龄相关性黄斑变性(age-relatedmaculardegeneration,ARMD)的疗效。方法2002年4月～2005年1月在我科确诊为ARMD渗出型患者24例32眼,男性17例25眼,女性7例7眼,年龄47～84岁(平均67.96岁)。其中17位患者(隐匿性CNV9眼、典型性及典型性为主型10眼)接受TTT治疗,按采取的能量参数分为100%能量组(7眼)、80%能量组(5眼)、70%能量组(7眼),其余7例13眼不接受任何治疗手段的患者作为无治疗组列为观察对象。术后对眼底改变、视力、眼底血管造影复查,随访6～37个月(平均21.65个月)观察疗效并进行统计分析。结果至末次复查时所有接受TTT治疗的19只患眼的出血、水肿、渗出消失、病灶斑痕化。100%能量组,80%能量组以及70%能量组视力提高的患眼比例相比较,均无统计学显著差异(分别为p=0.523,p=1.000,p=1.000)。治疗组(包括100%能量组,80%能量组以及70%能量组)与无治疗组视力下降的患眼比例相比较,有统计学显著差异(p=0.002)。治疗组与无治疗组视力提高的患眼比例相比较,无统计学显著差异(p=0.361)。结论TTT对隐匿型和经典型CNV均有稳定患眼视力的作用。目前选择该研究中80%能量组的参数,可以在安全性和有效性上得到进一步完善,仍有待更多病例的证实。     

光动力疗法治疗老年性黄斑变性的临床研究

目的
观察光动力疗法(photodynamic therapy,PDT)对渗出型老年性黄斑变性(age-related macular degeneration,AMD)脉络膜新生血管(choroidal neovascularization,CNV)进行单次和多次治疗的临床疗效。
方法
20例经双目间接立体检眼镜、荧光素眼底血管造影(fundus fluorescein angiography, FFA)、吲哚青绿血管造影(indocyanine green angiography, ICGA)检查确诊的AMD患者的31只患眼纳入治疗。患者年龄47～88岁，平均年龄68.1岁，最佳矫正视力在数指/10 cm～0.6之间。光敏剂苯并卟啉衍生物单酸(benzoporphyrin derivative mono acid, BPD)(中国诺华公司)6 mg／m 2静脉滴注10 min，开始静脉用药后15 min，通过裂隙灯用强度为50 J／cm2的689 nm激光(德国Zeiss公司)照射83 s。治疗后患者尽可能避光48 h。治疗后2周开始复查，每3个月随访1次，随访时间最短3个月，最长18个月，平均随访12个月。FFA和(或)ICGA显示病灶范围扩大、或渗漏增加，即进行重复PDT治疗。其中1只眼进行了4次治疗, 4只眼进行了2次治疗，其余26只眼均只进行了1次治疗。
结果
治疗后13只眼视力明显改善(视力提高≥2行)，占41.9%；17只眼视力稳定不变(视力波动在1行以内)，占54.8%；1只眼视力下降2行，占3.2%。所有患眼于PDT治疗后眼底出血和渗出均减轻；FFA或FFA+ICGA检查显示：PDT治疗后2周，CNV的渗漏明显减少或完全停止，复发或扩大的CNV经多次PDT治疗后，渗漏逐渐减少，3例5只眼渗漏完全停止。光相干断层成像术(optic coherence tomography, OCT)检查显示CNV周围视网膜脉络膜的水肿以及神经上皮脱离、色素上皮脱离明显好转。20例患者在PDT治疗过程中及治疗后未发生任何全身和局部不良反应。
结论
单次和重复PDT治疗可以部分或完全封闭AMD 的CNV，多次PDT治疗可以封闭CNV，降低AMD引起视力下降的危险性。PDT治疗不影响病灶周围的正常视网膜和脉络膜组织，对视力无损害。
(中华眼底病杂志, 2002, 18: 175-179)     

光动力疗法治疗中心性渗出性脉络膜视网膜病变疗效观察

目的 评价光动力疗法(photodynamictherapy,PDT)治疗中心性渗出性脉络膜视网膜病变(centralexudativehorioretinopathy,CEC)的临床疗效.方法 对比分析中心性渗出性脉络膜视网膜病变所致黄斑部脉络膜新生血管(choroidaineovascularization,CNV)患眼21例,治疗前与单次PDT治疗后3个月的视力、眼底、固视性质、光学相干断层扫描(optic coherence tomograph,OCT)图像及荧光素钠血管造影(fundus fluoresein angiography,FFA)、吲哚菁绿血管造影(indocyanine greenan giography,ICGA)的变化.结果 PDT治疗后3个月11只眼视力提高(52.38%),10只眼视力稳定(47.62%),其中5例由偏心固视恢复为中心固视.眼底检查可见出血渗出明显减少,部分患者完全吸收.FFA联合ICGA检查显示CNV病灶渗漏停止10只眼(47.62%),渗漏减少10只眼(47.62%);OCT检查表现为CNV缩小.组织水肿减轻.结论 PDT治疗可以部分或完全封闭中心性渗出性脉络膜视网膜病变所致的CNV,减少CNV引起的视力下降的危险性.     

光动力疗法治疗老年性黄斑变性伴脉络膜新生血管膜一年疗效观察

目的观察光动力疗法(PDT)治疗老年性黄斑变性(AM D)患者脉络膜新生血管膜(CNV)的疗效和安全性。方法回顾分析临床确诊为CNV形成并进行PDT治疗后连续观察1年的AM D患者者的临床资料,共45例患者51只患眼符合条件纳入观察。其中,经典型为主性CNV(典型CNV成分≥50.00%)28只眼,占54.90%;轻微典型性CNV(典型CNV成分<50.00%)10只眼,占19.61%;隐匿性CNV(没有典型CNV成分)13只眼,占25.49%。平均视力42.3~8.7个字母,光相干断层扫描检查显示,病变的最大线性距离(GLD)为3560.1~1256.2μm。回顾分析时比较其治疗前后视力、病灶大小、CNV渗漏变化,并观察治疗后病灶纤维化程度。结果随诊结束时,平均视力45.1~8.1个字母,与治疗前比较,差异无统计学意义(t=1.62,P=0.12)。其中,视力增加5个字母以上的视力提高者12只眼,占23.53%;视力提高5个字母以下或稳定者37只眼,占72.54%。GLD 3579.4~1390.6μm,与治疗前比较,差异无统计学意义(t=0.008,P=0.94)。CNV渗漏无进展者占88.24%,有进展者占11.76%。病变纤维化程度<25.00%的38只眼中,有30只眼纤维化程度有所增加,占病变纤维化程度<25.00%患眼的78.94%。不良事件的发生率23.4%,其中严重不良反应发生率为4.26%。结论PDT治疗AM D患者CNV能够在1年内保持视力的稳定;严重不良事件的发生率低;是AM D患者CNV治疗的安全有效方法。     

光动力疗法联合玻璃体腔曲安奈德注射治疗脉络膜新生血管

目的观察光动力疗法(PDT)联合玻璃体腔曲安奈德(TA)注射治疗老年黄斑变性和病理性近视引起的脉络膜新生血管(CNV)的近期疗效和安全性。方法16例经过视力、眼压、荧光素眼底血管造影(FFA)以及光相干断层扫描(OCT)等检查确诊的CNV患者的16只患眼进行PDT联合玻璃体腔TA注射治疗。其中,渗出型老年黄斑变性14例14只眼,病理性近视2例2只眼。16只眼中,12只眼在PDT治疗后72 h行玻璃体腔TA注射,4只眼在PDT 3个月~1年(平均9个月)后行玻璃体腔TA注射。第1年的平均治疗次数为1.1次。联合治疗后,采用与治疗前相同的条件和检查方法进行随访观察,随访时间3~18个月,平均随访时间18.6个月。对比观察治疗前后患者的最佳矫正视力、眼压、CNV病灶渗漏情况以及黄斑区视网膜厚度变化。结果16只眼中,7只眼视力提高,占43.8%;9只眼视力稳定,占56.2%。FFA显示CNV病灶在联合治疗后渗漏停止或减轻,OCT显示黄斑区视网膜水肿消退或减轻。1只眼暂时性眼压升高,占6.3%。经药物短期治疗后恢复正常。结论PDT联合玻璃体腔TA注射可以安全有效地治疗CNV,延缓视力下降,并且可以减少重复治疗的次数。     

Transpupillary thermotherapy in exudative age-related macular degeneration

PURPOSE: Assessment of TTT results in patients with exudative age-related macular degeneration. MATERIAL AND METHODS: The study comprised of 65 patients (73 eyes), in age 50-84 years (average age-75 yrs). The diagnosis of exudative AMD was established on the basis of fundus examination and fluorescein angiography (FA) and in some cases on indocyanine green angiography. The baseline visual acuity (VA) ranged from counting fingers at 50 cm to 0.8. In 31 (42.5%) eyes occult CNV, in 11 (15%) minimally classic CNV and in 31 (42.5%) eyes predominantly classic CNV were observed. Subfoveal CNV was present in 70 (95.9%) eyes and perifoveal in 3 (4.1%). TTT was delivered using a diode laser at 810 nm wavelength, a spot size of 1.2 to 4.5 mm and a duration of 60 seconds for each spot with power settings between 320-800 mW. Follow-up examinations were carried out every 10-12 weeks. In cases with persistent leakage from CNV in late frames of FA a retreatment was performed. The follow-up period ranged from 6 to 28 months (average - 9.8 months). RESULTS: Visual acuity improved in 22 (30.1%) eyes, stabilized in 34 (46.6%) and deteriorated in 17 (23.3%). Fluorescein angiography showed no CNV leakage in 58 (79.5%) eyes. In 56 (71.8%) with regression of leakage in fluorescein angiography improvement or stabilization of visual acuity was detected. Subretinal haemorrhages after TTT were observed in 4 eyes (5.5%). At the end of the follow-up period fibrosis of CNV was detected in 12 eyes (16.4%). CONCLUSIONS: TTT is effective and safe method of treatment of occult and classic CNV in a course of wet AMD. In a majority of cases TTT results in total or partial regression of CNV and stabilization of visual acuity.     

Photodynamic therapy with verteporfin following transpupillary thermotherapy for CNV evolving from an initially occult to a predominantly classic form, in patients with AMD

The purpose of this paper is to evaluate photodynamic therapy (PDT) in the management of choroidal neovascularization (CNV) due to age-related macular degeneration (AMD) that converted from occult CNV to classic CNV after treatment with transpupillary thermotherapy (TTT). One hundred and fifty-four eyes of 130 patients with symptomatic occult CNV were treated between June 2000 and August 2001. We have analyzed data from patients treated with PDT because of a conversion from occult to classic CNV after TTT. The results were that twenty-four of 154 eyes developed a predominantly classic CNV; 20 eyes of 19 consecutive patients were treated with PDT with verteporfin. The mean follow-up period was 10 months. The mean delay for retreatment with TTT was 3 months; 3 eyes initially presented a pure occult CNV, 15 a minimally classic CNV, 1 an occult CNV with pigment epithelial detachment, and 1 a large macular subretinal hemorrhage with a subfoveal focal hot spot. The average classic component within a lesion before TTT was 20%. Recurrence of classic CNV was noted in the first 3 months for 14 eyes. Visual acuity improved in 5 eyes by >/=2 lines, and in 2 eyes by 1 line; 4 of 20 eyes had stabilized visual acuity; 7 eyes had a visual acuity decline of >/=2 lines; 2 eyes lost 1 line. All patients had reduction of metamorphopsia and reduction of exudation; 14 eyes had a little subretinal fibrosis and some partially atrophic areas; 6 eyes had slightly increased leakage in the late phase of the angiogram. In conclusion, association of TTT and PDT appears to be safe and may help practitioners to manage some difficult cases. This study seems to confirm the great efficacy of PDT in CNV with recent activity.     

Photodynamic therapy with verteporfin following transpupillary thermotherapy for CNV evolving from an initially occult to a predominantly classic form,in patients with AMD

The purpose of this paper is to evaluate photodynamic therapy (PDT) in the management of choroidal neovascularization (CNV) due to age-related macular degeneration (AMD) that converted from occult CNV to classic CNV after treatment with transpupillary thermotherapy (TTT). One hundred and fifty-four eyes of 130 patients with symptomatic occult CNV were treated between June 2000 and August 2001. We have analyzed data from patients treated with PDT because of a conversion from occult to classic CNV after TTT. The results were that twenty-four of 154 eyes developed a predominantly classic CNV; 20 eyes of 19 consecutive patients were treated with PDT with verteporfin. The mean follow-up period was 10 months. The mean delay for retreatment with TTT was 3 months; 3 eyes initially presented a pure occult CNV, 15 a minimally classic CNV, 1 an occult CNV with pigment epithelial detachment, and 1 a large macular subretinal hemorrhage with a subfoveal focal hot spot. The average classic component within a lesion before TTT was 20%. Recurrence of classic CNV was noted in the first 3 months for 14 eyes. Visual acuity improved in 5 eyes by ≥2 lines, and in 2 eyes by 1 line; 4 of 20 eyes had stabilized visual acuity; 7 eyes had a visual acuity decline of ≥2 lines; 2 eyes lost 1 line. All patients had reduction of metamorphopsia and reduction of exudation; 14 eyes had a little subretinal fibrosis and some partially atrophic areas; 6 eyes had slightly increased leakage in the late phase of the angiogram. In conclusion, association of TTT and PDT appears to be safe and may help practitioners to manage some difficult cases. This study seems to confirm the great efficacy of PDT in CNV with recent activity.     

光动力疗法治疗老年性黄斑变性合并脉络膜新生血管的临床观察

目的 观察单次光动力疗法(photodynamic therapy, PDT)治疗渗出型老年性黄斑变性(age-related macular degeneration, AMD)合并脉络膜新生血管(choroidal neovascularization, CNV)的短期治疗效果。 方法 回顾分析经荧光素眼底血管造影(fundus fluorescein angiography, FFA)、吲哚青绿血管造影(indocyanine green angiography,ICGA)和光相干断层成像术(optic coherence tomography, OCT)等检查确诊的30例渗出型AMD患者的35只患眼行PDT治疗前和治疗后1周,1、3个月的临床资料，以视力、FFA、ICGA和OCT检查结果为观察指标，评价PDT对渗出型AMD的短期治疗效果。 结果 治疗后3 个月内有34只眼视力不变或提高，1只眼因出血而视力下降；FFA检查显示有19只眼荧光素渗漏减轻或完全消退；OCT检查显示视网膜水肿和浆液性脱离明显好转。全部患者治疗过程中未发生任何不良反应；治疗后3例患者主诉有一过性视物变暗，2例主诉轻微背痛。 结论 PDT治疗渗出型AMD时，可短期封闭CNV，使渗漏减轻或消退，对视力无损害。 (中华眼底病杂志, 2002, 18: 171-174)     

光动力学治疗脉络膜新生血管的临床观察

目的观察光动力学治疗继发于不同病因的黄斑中心凹下或中心凹旁脉络膜新生血管的疗效和安全性。方法回顾16例16眼经荧光血管造影、吲哚青绿造影证实活动性脉络膜新生血管,继发于老年性黄斑变性4眼,病理性近视6眼和中心性渗出性脉络膜视网膜病变6眼。比较PDT治疗前后最佳矫正视力,散瞳前置镜眼底检查以及荧光血管造影和脉络膜血管造影的资料。典型性为主型CNV14眼,轻微典型性CNV1眼,隐匿性CNV1眼。CNV位于黄斑中心凹下12眼,黄斑中心凹旁4眼。光动力学治疗方案参照TAP制定的标准。结果随访时间:1~14个月,平均(5±4.28)个月。1次治疗14眼,重复治疗2次1眼,3次1眼。最终患眼视力提高8眼,保持不变8眼。FFA检查示CNV渗漏停止1眼,渗漏减少10眼,渗漏无明显减少5眼,渗漏面积较治疗前明显缩小(P<0.05)。CNV复发3眼。仅1例在输液时发生光敏剂渗漏,但未发生光敏反应。治疗后视网膜一过性出血增加3眼。结论光动力学治疗为继发于不同病因的黄斑中心凹下或中心凹旁CNV患者提供一种安全有效的治疗选择。部分患者治疗后短时间内复发,PDT治疗CNV的长期疗效有待进一步观察。     

Photodynamic Therapy for Age-related Macular Degeneration

PrefaceAge鄄relatedmaculardegeneration(AMD)isanimportantchallengetoophthalmologistsinthe21stcentury.Worldwide,itisthemostcom鄄moncauseoflegalblindnessamongindividualsolderthan60years[1].ItisknownthatseverevisionlossinmajorityofpatientswithAMDisduotochoroidalneovascularization(CNV).Laserphot鄄ocoagulationistheonlylong鄄termtreatmentoptionforneovascularAMDandisindicatedforextrafovealorjuxtafoveallesion.Inthesecaseslasertreatmentcancauseirreversibledamagetotheretinalpigmentepitheliumandsens…     

光动力疗法治疗渗出性年龄相关性黄斑变性

目的观察光动力疗法(photodynamic therapy,PDT)治疗渗出性年龄相关性黄斑变性(age-related macular degeneration,AMD)的疗效。方法回顾分析经荧光素眼底血管造影(fundus fluorescein angiography,FFA)、吲哚菁绿血管造影(indocyanine green angiography,ICGA)以及光学相干断层扫描(optical coherence tomography,OCT)检查确诊的21例(31眼)渗出性AMD患者PDT治疗前及治疗后的临床资料,主要以视力、FFA及(或)ICGA、OCT的改变为观察指标,评价PDT对渗出性AMD的治疗效果。结果治疗后13眼视力明显改善(视力提高≥2行),占41.9%;14眼视力稳定不变(视力波动在1行以内),占45.2%;4眼视力下降2行,占12.9%。大部分患眼于PDT治疗后眼底出血和渗出减轻;ICGA检查显示:PDT治疗后1周,16眼CNV的渗漏明显减少或完全停止,8眼渗漏完全停止。OCT检查显示:CNV周围视网膜脉络膜水肿以及神经上皮脱离好转。5例6眼患者在PDT治疗过程中及治疗后发生视网膜神经上皮脱离范围变大,1例1眼发生黄斑部再次大面积出血,所有病例均未发生任何全身不良反应。结论单次和重复PDT治疗可以部分或完全封闭渗出性AMD的CNV,PDT治疗对病灶周围的正常视网膜和脉络膜组织短期内有轻度影响,对视力无损害。     

Transpupillary thermotherapy of occult CNV with no or minimally classic CNV in age-related macular degeneration

Transpupillary thermotherapy (TTT) has been suggested as a putative treatment for choroidal neovascularization (CNV) in age-related macular degeneration (AMD). This prospective study comprised 66 consecutive patients referred for exudative AMD with predominantly occult subfoveal CNV. Based on fluorescein angiography, there were 38 cases with occult CNV only, and 28 eyes with minimally classic CNV as well. Visual acuity was determined using the logarithmic ETDRS chart. For TTT a diode laser (810 nm) with a power of 800 mW or 500–600 mW for a 3.0 mm spot was used (duration 60 sec.). Follow-up included clinical examination with biomicroscopy and fluorescein angiography at 2–3 months and 6 months in all cases. In the entire case material (n = 66), the mean visual acuity was preoperatively 20/125 (47.4 letters) and postoperatively 20/160 (41.8 letters) yielding a decay of 5.6 letters (“one line”). Visual acuity improved in 8 cases (12.1%), deteriorated in 17 (25.8%), and remained stable in 74.2%. In purely occult CNV visual acuity remained stable in 81.6% as compared to 64.3% in occult & minimally classic CNV; the former subgroup lost on the average 3.6 letters, the latter 8.3 letters (close to “two lines”) over 6 months. The proportion of eyes losing at least 15 letters was 13.2% in purely occult CNV versus 35.7% in the occult & minimally classic subgroup. In 39 of 66 cases (59.1%) fluorescein leakage regressed to staining only concomitant with absorption of subretinal fluid. Complications associated with deterioration of visual acuity (17 cases) included postoperative hemorrhage, increase of exudation on angiography, and progressive fibrosis. The results indicate that TTT stabilizes visual acuity concomitant with regression of exudation and resorption of subretinal fluid in the majority of cases with predominantly occult CNV. Cases with occult CNV only seem to do better than those with minimally classic CNV as well. The safety and complication rate appear to be acceptable. A randomized controlled trial is in progress.