氩绿激光、氩蓝绿激光和氪红激光用于10-0尼龙结膜下激光缝线溶解的相对疗效。
Relative efficacy of the argon green, argon blue-green, and krypton red lasers for 10-0 nylon subconjunctival laser suture lysis.
作者信息
Mudgil A V, To K W, Balachandran R M, Janigian R H, Tsiaras W G
机构信息
Department of Ophthalmology, Brown University School of Medicine/Rhode Island Hospital, Providence 02903, USA.
出版信息
Ophthalmic Surg Lasers. 1999 Jul-Aug;30(7):560-4.
BACKGROUND AND OBJECTIVE
To determine the optimal wavelength for subconjunctival laser suture lysis.
MATERIALS AND METHODS
130 black monofilament 10-0 nylon sutures were sewn subconjunctivally into the bare sclera of enucleated rabbit globes. The lowest energy levels facilitating laser suture lysis were determined for the argon green (514.5 NM), argon blue-green (488.0 NM, 514.5 NM), and krypton red (647.1 NM) wavelengths. In addition, absorption spectroscopy was performed on the suture material and conjunctiva using the Perkin Elmer W/VIS Lambda 2 spectrometer.
RESULTS
Krypton red produced the fewest buttonhole defects, and it was also the most efficient energy source for suture lysis (P = 0.0001) under nontenectomized conjunctiva. Absorbance spectra studies revealed peak absorbance at 628 NM for the 10-0 nylon suture material.
CONCLUSIONS
Based on animal and absorption spectroscopy studies, krypton red may be a safer and more efficient wavelength for subconjunctival laser suture lysis.
背景与目的
确定结膜下激光缝线溶解的最佳波长。
材料与方法
将130根黑色单丝10-0尼龙缝线结膜下缝合至摘除的兔眼球裸露巩膜上。测定氩绿（514.5纳米）、氩蓝绿（488.0纳米、514.5纳米）和氪红（647.1纳米）波长下促进激光缝线溶解的最低能量水平。此外，使用珀金埃尔默W/VIS Lambda 2光谱仪对缝线材料和结膜进行吸收光谱分析。
结果
在未进行结膜切除术的情况下，氪红产生的针孔缺陷最少，也是缝线溶解最有效的能量源（P = 0.0001）。吸收光谱研究显示10-0尼龙缝线材料在628纳米处有最大吸收峰。
结论
基于动物和吸收光谱研究，氪红可能是结膜下激光缝线溶解更安全、更有效的波长。
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