Bilateral Ring-shaped Intrastromal Opacities After Corneal Cross-linking for Keratoconus

被引:11
作者
Camesasca, Fabrizio I. [1 ]
Vinciguerra, Paolo [1 ]
Seiler, Theo [2 ]
机构
[1] Ist Clin Humanitas, Dept Ophthalmol, Milan, Italy
[2] Inst Refract & Ophthalm Surg, Zurich, Switzerland
关键词
VIVO CONFOCAL MICROSCOPY; COLLAGEN; HAZE;
D O I
10.3928/1081597X-20110812-02
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
PURPOSE: To report a case of bilateral, ring-shaped, intrastromal corneal opacities after corneal cross-linking (CXL) for progressive keratoconus. METHODS: A 21-year-old man with bilateral, progressive keratoconus underwent CXL with riboflavin 0.1% and ultraviolet A (UVA) light in the right eye and, 6 months later, in the left eye. RESULTS: One day after CXL, the right eye showed a sharply demarcated white ring in the corneal periphery. The ring involved the superficial stroma at 2 mm from the limbus, extended from 1 to 11 o'clock, and was 1.5-mm wide. Corneal topography showed marked central flattening. Six months after treatment, a residual, faint, ring-shaped opacity remained, with a decrease in corneal ectasia. Cross-linking was then performed in the left eye. Different ultraviolet devices were used in the two eyes. On postoperative day 1, the left eye also showed a white ring of stromal opacity. Scheimpflug imaging showed corneal stromal contraction in the zone of whitening. At final examination, >1 year after surgery, corrected visual acuity was 0.00 logMAR with cylinder of 2.00 diopters in both eyes. CONCLUSIONS: The bilateral intrastromal corneal changes were innocuous in the long-term, with preservation of good visual acuity and successful stabilization of progressive keratoconus. [J Refract Surg. 2011;27(12):913-915.] doi:10.3928/1081597X-20110812-02
引用
收藏
页码:913 / U1500
页数:3
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