Carr J D, Patel R, Hersh P S
Cornea Consultation Service, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY 10467, USA.
J Refract Surg. 1995 May-Jun;11(3 Suppl):S309-13. doi: 10.3928/1081-597X-19950502-25.
Subepithelial corneal haze and myopic regression are potential complications following excimer photorefractive keratectomy (PRK). There are many medical and surgical methods of managing this haze. We present a 37-year-old male myope who underwent PRK and subsequently developed central corneal haze late in the postoperative course. The haze was managed initially with topical medications with limited success. Mechanical superficial keratectomy was done to remove the superficial scar tissue but the haze returned necessitating repeat excimer laser PRK, using a transepithelial technique. The haze did not recur. Both mechanical superficial keratectomy and repeat excimer laser ablation may ameliorate haze. Success of these procedures may depend on the morphology of the haze and the patient's individual wound healing response.
上皮下角膜混浊和近视回退是准分子激光屈光性角膜切削术（PRK）后的潜在并发症。有许多医学和手术方法可处理这种混浊。我们报告一名37岁男性近视患者，他接受了PRK手术，术后晚期出现中央角膜混浊。最初使用局部药物治疗混浊，但效果有限。进行了机械性浅层角膜切除术以去除浅层瘢痕组织，但混浊复发，因此需要使用经上皮技术重复进行准分子激光PRK。混浊未再复发。机械性浅层角膜切除术和重复准分子激光消融均可改善混浊。这些手术的成功可能取决于混浊的形态和患者个体的伤口愈合反应。
