Christian M M, Cox D O, Smith C V, Onouye T, Moy R L
University of Texas Southwestern Medical Center, Dallas, Texas, USA.
Dermatol Surg. 2001 Feb;27(2):153-7. doi: 10.1046/j.1524-4725.2001.00221.x.
Ocular damage may occur from a number of mechanisms during laser use.
To review issues relevant to ocular protection during laser resurfacing.
The authors were consulted to evaluate the thermal energy transferred from the outer to the inner (ie, corneal contact) surface of stainless steel eyeshields following direct exposure to the carbon dioxide (CO2) resurfacing laser beam. Measurements were obtained using thermocouples (attached to the inner surface of the eyeshields) and analyzed with a computer-based acquisition system.
A maximum eyeshield temperature increase of 13 degrees C above the ambient temperature was noted following one pass with a CO2 resurfacing laser (Sharplan continuous CO2 laser with Clinicon SureScan scanner, 15 W, 950 microsec pulse duration, square spot of 9 mm).
The eyeshields analyzed in this study minimized thermal transfer following a single direct hit with a CO2 resurfacing laser. An understanding of the potential mechanisms of ocular injury is essential in preventing its occurrence.
在激光使用过程中，眼部损伤可能由多种机制引起。
回顾激光表面重塑过程中与眼部保护相关的问题。
咨询作者以评估不锈钢眼罩在直接暴露于二氧化碳（CO2）表面重塑激光束后从外表面向内表面（即角膜接触表面）传递的热能。使用热电偶（连接到眼罩内表面）进行测量，并通过基于计算机的采集系统进行分析。
使用CO2表面重塑激光（Sharplan连续CO2激光与Clinicon SureScan扫描仪，15W，950微秒脉冲持续时间，9mm方形光斑）照射一次后，眼罩温度最高比环境温度升高13摄氏度。
本研究中分析的眼罩在单次直接受到CO2表面重塑激光照射后可将热传递降至最低。了解眼部损伤的潜在机制对于预防其发生至关重要。
