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二極體雷射於青光眼應用之效果
Diode Laser for Glaucoma Treatment
摘要
應用波長810nm之二極體雷射施行小樑成型術及隅角成型術於青光眼患眼，觀察其效果與氬氣雷射同樣施術後之效果相比較。 十二例隅角開放性青光眼患者予以納入小樑成型術研究，任意選擇一眼接受二極體雷射，另一眼接受氬氣雷射小樑成型術，術後一小時之眼壓測量，氬氣組平均眼壓上升約0.5m mHg，而二極體組之眼壓均未上升，反而略有下降，平均降幅為0.8 mmHg。雷射後三個月的追蹤檢查，兩組均可見明顯眼壓下降效果，而兩組間無明顯差異。 隅角閉鎖性青光眼患者，已接受虹膜穿孔術後，隅角扔呈可能閉鎖，需再行雷射隅角成型術者六例十二眼，予以納入隅角成型術組，同樣兩眼接受不同之雷射治療，術後一小時之眼壓突變與小樑成型術接變化相近。但隅角成型術施術時，於二極體組不易見到隅角虹膜立即收縮之效果，一週後之追蹤檢查則兩組呈現相似效果。 總體而言，二極體雷射施術所需之能量比氫氣雷射需高100 mw始見相同之效果。三個月之追蹤檢查觀察其成此，兩組之間並無明顯差異。
關鍵字
無資料並列摘要
We tried to perform laser trabeculoplasty and gonioplasty by the infrared diode laser (wave length 810 nm) and compared wills that effect by argon laser. Twelve open angle glaucoma patients were included into laser trabeculoplasty study. One eye was performed by diode laser and the other eye by argon laser randomly. The spike of intraocular pressure after laser management was less common on diode laser treated eyes. The average IOP spike one hour after laser treatment was +0.5 mmHg in argon group and-0.8 mmHg in diode group. During three months follow up there was no significant difference of intraocular pressure control between both group. Six angle closure glaucoma patients who received laser iridotomy and still closable chamber angle were included for laser gonioplasty study. The IOP spike after laser treatment was same as trabeculoplasty. The immediate laser effect for chamber angle widening was difficult to view during the procedure by diode laser. One week after laser treatment there was no difference of the result between diode and argon laser groups. Generally speaking the power needed for treatment by diode laser was 100 mW higher than argon laser. The end results during three months follow up were no significant difference between both group.