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Soft contact lens-induced corneal deformation in the posterior corneal surface
Contact Lens & Anterior Eye ( IF 3.2 ) Pub Date : 2020-10-21 , DOI: 10.1016/j.clae.2020.10.002
Motohiro Itoi 1 , Motozumi Itoi 2
Affiliation  

Objective

This case report aims to highlight the corneal deformation induced by soft contact lens (SCL) wear, which is accompanied by changes in not only the anterior but also the posterior surface of cornea.

Case Report

Cases are presented of two patients who wore non- planned replacement SCL for more than 15 years fabricated from materials with low oxygen permeability, sought a consultation with complaints of visual acuity loss in the both eyes. Anterior segment optical coherence tomography imaging demonstrated corneal deformation in the posterior as well as the anterior surface in both eyes of two patients, resulting in the diagnosis of corneal deformation induced by SCL wear. After the cessation of lens wear, there were improvements in visual acuity, anterior and posterior corneal higher-order aberrations, and changes in the anterior corneal shape, whereas the posterior corneal shape was improved in one case and remained mildly deformed in the other case.

Conclusion

Wearing SCLs with low oxygen permeability for long time periods, could induce corneal deformation in patients, indicating the need for careful observation of changes in not only the anterior but also the posterior corneal surface.



中文翻译:

软性隐形眼镜引起的角膜后表面角膜变形

客观的

本病例报告旨在强调由软性隐形眼镜 (SCL) 佩戴引起的角膜变形,这不仅伴随着角膜前表面的变化,也伴随着角膜后表面的变化。

案例报告

案例介绍了两名患者佩戴由低透氧性材料制成的非计划更换 SCL 超过 15 年,寻求咨询并抱怨双眼视力下降。前段光学相干断层扫描成像显示两名患者双眼的后表面和前表面的角膜变形,从而诊断由SCL磨损引起的角膜变形。停止配戴镜片后,视力、前后角膜高阶像差、前角膜形状发生变化,1例后角膜形状改善,1例仍保持轻度变形。

结论

长时间佩戴透氧性低的 SCL 会导致患者角膜变形,这表明不仅需要仔细观察角膜前表面的变化,还需要仔细观察角膜后表面的变化。

更新日期:2020-10-21
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