Automated lamellar keratoplasty with excimer laser intrastromal photoablation for correction of severe myopia
- VernacularTitle:自控角膜板层切开联合准分子激光角膜基质内切削成形术治疗超高度近视的初步体会
- Author:
Wenxiu LU
- Publication Type:Journal Article
- Keywords:
Myopia/surg;
Cornea/surg;
Laser surgery
- From:
Ophthalmology in China
1993;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
The purpose of this study was to observe the preliminary results of using automated lamellar keratoplasty with excimer laser intrastromal photoablation(LASIK technique)for correction of se- vere myopia.We report 58 eyes from 50 patients with extremely high myopia.The mean preoperative spherical equivalant refraction was-19.29?3.88 diop- ters(D),ranging from-15.37—-36.00D.We com- bined automated lamellar keratoplasty(ALK)micro- keratome with Ketacor 116 excimer laser techniques to create a nasally based corneal flap and then to ablate its underlying stroma with photoablation.The follow-up time was over 3 months.The results were: The mean postoperative uncorrected visual acuity (UCVA)was 0.61?0.27,in 39 eyes(67.24%), UCVA was≥0.5 and in 19 eyes(32.76%),UCVA≥0.8; the mean postoperative refraction was-0.49?3.01D, 51.72% of eyes were within?1.00D and 75.86%, within?2.00D of emmetropia.These results indicate this technique correct high myopia with greater corrective capability and predictability than other corneal refractive procedures.However,it's stability, potential capability and safety need long-term obser- vation and further research.
