Kamei Motohiro, Matsumura Nagakazu, Sakaguchi Hirokazu, Oshima Yusuke, Ikuno Yasushi, Nishida Kohji
Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan.
Clin Ophthalmol. 2012;6:1321-4. doi: 10.2147/Opth.S33595. Epub 2012 Aug 14.
We evaluated the usefulness of commercially available materials for protecting the cornea from drying during vitrectomy with a wide-angle viewing system.
THREE VITREORETINAL SURGEONS EVALUATED FUNDUS VISIBILITY DURING VITRECTOMY ON THE IMAGES OF FIVE STUDY MATERIALS USED ON THE CORNEA: balanced saline solution, a viscoelastic agent, a vitrectomy contact lens, a rigid gas permeable (RGP) contact lens, and a soft contact lens. Fundus visibility was graded using the following scale: grade 1, unclear; grade 2, slightly unclear; grade 3, clear; and grade 4, very clear.
RESPECTIVE SCORES FOR EACH MATERIAL USED DURING CORE VITRECTOMY AND MEMBRANE REMOVAL WERE: balanced saline solution, 3.3/3.3; viscoelastic agent, 3.8/3.3; vitrectomy contact lens, 3.3/4.0; RGP contact lens, 4.0/3.9; soft contact lens, 1.1/not applicable.
The RGP contact lens provided visibility similar to or clearer than that obtained with other methods. Because of its ease of use and lower cost, use of the RGP contact lens is ideal during vitrectomy performed with a wide-angle viewing system.
我们评估了市售材料在广角观察系统玻璃体切割术中保护角膜免于干燥的有效性。
三位玻璃体视网膜外科医生在玻璃体切割术中，根据在角膜上使用的五种研究材料的图像评估眼底可视性，这五种材料分别是：平衡盐溶液、一种粘弹性剂、一种玻璃体切割接触镜、一种硬性透气性（RGP）接触镜和一种软性接触镜。眼底可视性按以下标准分级：1级，不清晰；2级，稍不清晰；3级，清晰；4级，非常清晰。
在核心玻璃体切割术和膜切除术中使用的每种材料的各自评分如下：平衡盐溶液，3.3/3.3；粘弹性剂，3.8/3.3；玻璃体切割接触镜，3.3/4.0；RGP接触镜，4.0/3.9；软性接触镜，1.1/不适用。
RGP接触镜提供的可视性与其他方法相当或更清晰。由于其使用方便且成本较低，在使用广角观察系统进行玻璃体切割术时，使用RGP接触镜是理想的选择。
