Jammal Hisham M, Dolat Wedad M
Department of Ophthalmology, Faculty of Medicine, Jordan University of Science and Technology, PO Box 1099, Irbid 21110, Jordan.
Int Ophthalmol. 2012 Feb;32(1):51-3. doi: 10.1007/s10792-011-9504-2. Epub 2012 Jan 14.
To report a case of corneal rupture due to blunt trauma occurring 20 years after radial keratotomy (RK) and transverse keratotomy. A 57-year-old woman sustained direct blunt trauma to her right eye. Ocular examination revealed a ruptured globe involving two of the eight RK incisions connected together across the visual axis with iris incarceration in the wound. The transverse keratotomy scars remained intact. The patient underwent primary corneal wound repair and iris repositioning. The postoperative period was uneventful. The patient had a visual acuity of counting fingers at 1 m and is awaiting penetrating keratoplasty. Traumatic rupture of RK incisions can still occur after 20 years. Patients having undergone RK many years before should be warned of a possible life-long risk of traumatic rupture. RK scars appear to be more vulnerable to rupture than astigmatic keratotomy scars.
报告一例在放射状角膜切开术(RK)和横向角膜切开术20年后因钝挫伤导致角膜破裂的病例。一名57岁女性右眼遭受直接钝挫伤。眼部检查发现眼球破裂,涉及八条RK切口中的两条,这两条切口在视轴上相连,伤口处有虹膜嵌顿。横向角膜切开术的瘢痕保持完整。患者接受了一期角膜伤口修复和虹膜复位。术后过程顺利。患者视力为1米处数指,正在等待穿透性角膜移植术。RK切口的创伤性破裂在20年后仍可能发生。多年前接受过RK手术的患者应被告知存在创伤性破裂的终身潜在风险。RK瘢痕似乎比散光性角膜切开术瘢痕更容易破裂。