Keates R H, Pedrotti L S, Weichel H, Possel W H
Ophthalmic Surg. 1981 Feb;12(2):117-22.
Precise control of output power and beam divergence of a CO2 laser resulted in focused beam diameters down to 25 microns and essentially continuous control of energy deposition on target. Application of controlled laser beams on cow, hog, and human eye-bank reject corneal tissue give evidence of well-defined, narrow cuts. The controllable penetration depth and width of the CO2 laser incisions seem to make the laser an ideal "knife" for such corneal modifications as radial keratotomy and epikeratophakia. Our results indicate that the CO2 laser, when successfully integrated with the standard slit lamp, may be a safer and useful tool in laser surgery of the cornea.
二氧化碳激光输出功率和光束发散度的精确控制，使得聚焦光束直径可达25微米，并能基本连续控制靶面上的能量沉积。将受控激光束应用于牛、猪以及人眼库废弃的角膜组织，结果显示切口清晰、狭窄。二氧化碳激光切口可控的穿透深度和宽度，似乎使激光成为诸如放射状角膜切开术和角膜表面镜片术等角膜改良手术的理想“手术刀”。我们的结果表明，二氧化碳激光若能成功与标准裂隙灯整合，可能会成为角膜激光手术中一种更安全且有用的工具。
