经瞳孔温热疗法治疗渗出型老年性黄斑变性的临床疗效观察

目的
评价经瞳孔温热疗法(transpupillary thermotherapy,TTT)治疗渗出型老年性黄斑变性（age-related macular degeneration, AMD）的临床疗效。
方法
回顾分析62例确诊为AMD的患者的62只患眼TTT治疗的临床资料。62例AMD患眼中，行荧光素眼底血管造影(fundus fluorescein angiography，FFA)检查者58例，吲哚青绿血管造影(indocyanine green angiography ,ICGA)检查者42例，光相干断层成像术(optic coherence tomography, OCT)检查者56例。激光治疗机波长为810 nm，光斑0.5～3.0 mm,能量60～400 mW,照射时间60 s。62例患者治疗后随访观察1～10个月，平均随访观察时间4.8个月，分析末次随访视力与治疗前视力以及OCT复查资料。
结果
视力不变者43例，占69.4%；进步者15例，占24.2%；下降者4例，占6.5%。51例OCT复查者中，黄斑水肿不变者29例，占56.96%；好转者18例，占38.3%；恶化者4例，占7.8%。视力改善与OCT黄斑水肿的形态改善相一致者38只眼，占OCT检查者的74.5%；视力改善滞后于黄斑水肿形态改善者13只眼，占25.5%。再次行TTT治疗者18只眼，占接受TTT治疗者的29.0%。治疗随访期间无明显治疗副作用。
结论
TTT治疗能使大部分渗出性AMD患眼视力稳定或提高，使用安全，但激光治疗参数尚需进一步探索。
(中华眼底病杂志, 2002, 18: 180-183)

Transpupillary thermotherapy in the management of exudative age-related macular degeneration

Objective To evaluated the effect of transpupillary thermotherapy (TTT) on age related macular degeneration (AMD). Methods Sixty two cases (62 eyes) of exudative AMD were managed with TTT. Before treatment, 58 cases underwent fundus fluorescein angiography(FFA),42 cases underwent simultaneous indocyanine green angiography (ICGA), and 56 cases underwent optic coherence tomography (OCT).TTT was delivered using a 810 nm diode laser with variable spot sizes 0.5 3.0 mm and power range 60 40 mW,60 seconds duration. Sixty two cases were followed up for 1 10 months with 4 8 months average. Results The visual acuities of last visit were compared with those before the treatment. The visual acuity was unchanged in 43 cases (69.3%), improved in 15 cases (24.2%), and declined in 4 cases (6.5%). OCT was re done in 51 cases and compared with OCT images before TTT treatment. The height of macular edema was unchanged in 29 cases (56.9%), decreased in 18 cases (35.3%), and increased in 4 cases (7.8%). The amelioration of visual acuity was compatible with that of macular configuration in the majority of cases (74.5%). Only in 13 cases (25.5%) the amelioration of visual acuity lagged behind that of macular configuration. The re treatment was performed in 18 cases (29.1%), probably due to insufficiency of laser power. No side effect was found. Conclusion TTT makes most of the cases of exudative AMD retaining or improving their visual acuity. The employment is secured. Further exploration is needed in order to obtain the parameters of the laser treatment.