Ring-Shaped Corneal Stromal Opacities after Corneal Cross-linking with Riboflavin and Ultraviolet A Irradiation for Keratoconus
نویسندگان
چکیده
A 32-year-old female patient with progressive keratoconus in her right eye was treated with simultaneous customized photoreactive keratoctomy (PRK) and corneal cross-linking (CXL) with riboflavin and Ultraviolet A (UVA) irradiation. Ten days after the procedure, the patient was presented with foreign body sensation, mild ring-shaped corneal infiltration with vascularization at the limbus and Trantas dots at slit-lamp examination along with conjunctival injection and papillary reaction. One month postoperatively, the conjunctival injection decreased but the limbus vascularization and circular infiltration remained. Five months postoperatively, there were no subjective complains and slit-lamp examination revealed circular pseudogerontoxon more dense superiorly. Best corrected visual acuty (BCVA) remained 20/20 and corneal topography remained stable. Ring-shaped intrastromal corneal infiltrate could appear after simultaneous PRK-CXL for progressive keratoconus without interfering with the stiffening effect of the procedure.
منابع مشابه
Stromal Demarcation Line in Pulsed Versus Continuous Light Accelerated Corneal Cross-linking for Keratoconus.
PURPOSE To compare the stromal demarcation line depth in pulsed versus continuous corneal cross-linking (CXL) for keratoconus. METHODS Seventy eyes underwent epithelium-off cross-linking, with 0.1% riboflavin applied during 10 minutes prior to ultraviolet irradiation at 30 mW/cm2. Thirty-six eyes received pulsed irradiation (1 second on, 1 second off) for 8 minutes and 34 eyes underwent conti...
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Corneal collagen cross-linking (CXL) is a therapeutic procedure aiming at increasing the corneal stiffness in the keratoconus eyes by induction of cross-links within the extracellular matrix. It is achieved by ultraviolet-A (370 nm) irradiation of the cornea after saturation with the photosensitizer riboflavin. In the conventional CXL protocol, a minimum de-epithelialized corneal thickness of 4...
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INTRODUCTION Keratoconus is a noninflammatory cone-like ectasia of the cornea that can be managed by glasses, contact lenses, keratoplasty, crosslin king (CXL), and intrastromal corneal ring segment (ICRS) insertion, based on the stage of the disease and the patient’s symptoms. Despite being an evolutive disease, CXL has recently been utilized as a therapeutic option for stabilizing the cornea....
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