Keratoconus is a non-inflammatory condition in which the cornea assumes a conical shape because of thinning and protrusion.1 It is bilateral, asymmetric, and progressive. The cornea thins, steepens, and protrudes, and its outer surface becomes irregular, distorted, and sometimes even scarred, resulting in blurry vision, even with visual correction.2
Keratoconus treatment has evolved significantly in the past few years. The benefits of intracorneal ring segments (ICRS) have been established in the current literature regarding visual acuity gain, reduction in spherical equivalent (SE), and

中文翻译：

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使用两个不同制造商的诺法图对圆锥角膜手术进行角膜内环段植入的结果

圆锥角膜是一种非炎性疾病，其中角膜由于变薄和突出而呈圆锥形1。它是双侧的，不对称的和进行性的。角膜变薄，变陡和突出，并且其外表面变得不规则，扭曲甚至有时是疤痕，甚至在矫正视力的情况下也导致视力模糊
。2圆锥角膜治疗在过去几年中已取得了显着进展。在现有文献中已经确定了角膜内环节段（ICRS）的益处，这些益处涉及视力增加，球等效量（SE）的减少和