角膜双侧前基质环混浊。
Bilateral, anterior stromal ring opacity of the cornea.
作者信息
Melles G R, de Séra J P, Eggink C A, Cruysberg J R, Binder P S
机构信息
Rotterdam Eye Hospital, Netherlands.
出版信息
Br J Ophthalmol. 1998 May;82(5):522-5. doi: 10.1136/bjo.82.5.522.
AIMS/BACKGROUND: To describe a bilateral, mid peripheral, ring-shaped corneal opacity, not resembling any known corneal degeneration, dystrophy, or other disorder, and occurring without ocular or systemic disease.
METHODS
Ophthalmic examination, haematological screening, and ultrasound biomicroscopy.
RESULTS
A 25 year old man showed grey-white, granular opacities in both corneas, with an 8 mm diameter ring configuration, and a V-shaped distribution in the anterior stroma. The surrounding corneal stroma was clear, and the tear film, the epithelium and its basement membrane, Descemet's membrane, and the endothelium were normal. Evidence of systemic disease was not found. Family members did not show corneal abnormalities.
CONCLUSION
A bilateral corneal ring opacity may occur in healthy, asymptomatic, young people. These corneal rings may result from depositions of unknown origin, or possibly a rare corneal dystrophy.
目的/背景：描述一种双侧、周边中部环形角膜混浊，它与任何已知的角膜变性、营养不良或其他病症均不相似，且在无眼部或全身性疾病的情况下发生。
方法
眼科检查、血液学筛查及超声生物显微镜检查。
结果
一名25岁男性双眼角膜出现灰白色颗粒状混浊，呈直径8毫米的环形形态，在前基质层呈V形分布。周边角膜基质清晰，泪膜、上皮及其基底膜、Descemet膜和内皮均正常。未发现全身性疾病证据。家庭成员未表现出角膜异常。
结论
双侧角膜环形混浊可能发生在健康、无症状的年轻人中。这些角膜环可能源于不明原因的沉积，或者可能是一种罕见的角膜营养不良。
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