Stewart W, Feldman R M, Gross R L
Cullen Eye Institute, Baylor College of Medicine, Houston, Tex. 77030.
Ophthalmic Surg. 1993 Jan;24(1):47-8.
We report five patients in whom collagen lacrimal plugs were used to temporarily occlude the lumen of Molteno shunts to prevent early postoperative hypotony. Only one eye, with a double plate, developed hypotony and a flat anterior chamber that required reformation. However, in three patients, the collagen plugs did not dissolve and had to be removed surgically to lower the intraocular pressure. Although the semipermeability of collagen is desirable, its unpredictable degradation renders it unsuitable for temporary occlusion of tube shunts. Other biodegradable materials may be more appropriate for this purpose.
我们报告了5例使用胶原泪点塞临时阻塞莫尔滕诺分流管腔以预防术后早期低眼压的患者。仅1只植入双板的眼睛发生了低眼压和前房扁平，需要进行前房重建。然而，在3例患者中，胶原塞未溶解，必须通过手术取出以降低眼压。尽管胶原的半透性是理想的，但其不可预测的降解使其不适用于临时阻塞分流管。其他可生物降解材料可能更适合此目的。
