Department of Ophthalmology (Y.A., M.I., M.U., T.I., C.S.), Kyoto Prefectural University of Medicine, Kyoto, Japan; Department of Ophthalmology (T.I.), National Center for Geriatrics and Gerontology, Aichi, Japan; and Department of Frontier Medical Science and Technology for Ophthalmology (S.K.), Kyoto Prefectural University of Medicine, Kyoto, Japan .
Eye Contact Lens. 2022 Aug 1;48(8):313-317. doi: 10.1097/ICL.0000000000000924. Epub 2022 Jul 8.
Recently, the prescription of large-diameter rigid gas-permeable contact lenses (CLs), also known as "scleral lenses," "corneoscleral lenses," and "limbal-rigid CLs," is on the rise for the treatment of both moderate and severe ocular surface disorders (OSDs). Compared with scleral lenses, the diameter of limbal-rigid CLs is generally smaller, that is, a diameter ranging from 13.0 to 14.0 mm, and they are designed so that the peripheral edge bears on the limbus. The Suncon Kyoto-CS (Sun Contact Lens Co., Ltd.) is a novel limbal-rigid CL design with multistep curves on the peripheral edge for easy tear exchange during blinking that removes debris and prevents lens clouding or fogging, thus allowing patients to enjoy a longer daily duration of CL wear. In severe OSD cases, limbal-rigid CL wear after surgery is a noninvasive therapeutic approach that can neutralize corneal irregularities, decrease dry eye symptoms, prevent the progression or recurrence of symblepharon, and improve the patient's visual acuity and overall quality of life. Thus, surgeries such as amniotic membrane transplantation and cultivated oral mucosal epithelial transplantation, as well as limbal-rigid CL wear, which is noninvasive, are valuable and effective treatment strategies that can now be applied for the management of patients afflicted with severe OSDs.
近年来，大直径硬性透气性角膜接触镜（俗称巩膜镜、角巩膜镜、硬性周边角膜接触镜）的处方量不断增加，用于治疗中重度眼表疾病（OSD）。与巩膜镜相比，硬性周边角膜接触镜的直径通常较小，即直径为 13.0 至 14.0mm，并设计为周边边缘压在角膜缘上。Suncon Kyoto-CS（Sun Contact Lens Co.，Ltd.）是一种新型硬性周边角膜接触镜设计，其周边边缘有多个阶梯曲线，便于眨眼时进行泪液交换，清除碎屑，防止镜片混浊或起雾，从而使患者能够享受更长的每日佩戴时间。在严重 OSD 病例中，手术后佩戴硬性周边角膜接触镜是一种非侵入性治疗方法，可中和角膜不规则性，减轻干眼症状，防止睑球粘连的进展或复发，并提高患者的视力和整体生活质量。因此，羊膜移植和培养口腔黏膜上皮移植等手术以及非侵入性的硬性周边角膜接触镜佩戴等治疗策略具有重要价值和有效性，可用于管理严重 OSD 患者。
