来自堪萨斯州欧弗兰帕克的Daniel S. Durrie博士报道，一项52名患者104只眼的前瞻性研究结果表明，随着准分子激光角膜切削术的发展，患者术后视力恢复的速度加快，对比敏感度(CSF)也大为提高，术后第1天，96%的眼可恢复至20/20的视力，98%的患者双眼均恢复至20/16的视力。术后1个月，100%的患者视力可恢复至20/20，92%的患者可恢复至20/16的视力，66%的患者可恢复至20/ 12的视力。术后1个月，所有空间频率的CSF明显改善。

　　PA021

　　Better Than 20/20: A Comparison of the Speed of Visual Recovery Following LASIK With 5 Different Lasers

　　Purpose: To prospectively evaluate speed of visual recovery (SOVR) following LASIK.

　　Methods: LASIK was performed on 104 eyes of 52 patients using femtosecond lasers from Ziemer, IntraLase, and Alcon and excimer lasers from AMO and Alcon. Monocular and binocular uncorrected distance visual acuity and contrast sensitivity (CSF) were measured immediately after surgery and at 30 minutes, 1, 2, and 4 hours, 1 day, and 1 month post-surgery.

　　Results: At 1 day, 96% of eyes were 20/20 and 98% of patients were 20/16 O.U. At 1 month, 100% of patients were 20/20, 92% were 20/16, and 66% were 20/12.5. At 1 month there was a significant improvement in CSF at all spatial frequencies and within each laser cohort.

　　Conclusion: Modern LASIK offers rapid SOVR as well as improvement in CSF across a spectrum of laser platforms.