Krasnov M M
Br J Ophthalmol. 1977 May;61(5):316-20. doi: 10.1136/bjo.61.5.316.
A new type of intraocular lens has been devised. The lens is iris-supported but, in contrast to conventional iris-clip lenses, is fixed at the iris periphery, leaving the pupillary region free. The lens may be implanted either anterior or posterior to the iris plane. Implantation into the posterior chamber is particularly beneficial when combined with an extracapsular extraction. Eight years' experience (189 operations) underlines a number of important advantages of the extrapupillary iris lens. The pupil is not distorted, so that its form and function remain normal; the danger of dislocation is avoided; and the lens may be employed in the presence of an iris coloboma. The supporting prongs of the lens are made of gold and platinum alloys, which add considerably to its tissue tolerance. So far no complication has arisen necessitating removal of such a lens. This new type of intraocular lens offers a combination of efficacy, safety, and technical simplicity.
一种新型人工晶状体已被设计出来。该晶状体由虹膜支撑，但与传统的虹膜夹型晶状体不同，它固定在虹膜周边，使瞳孔区域保持自由。晶状体可植入虹膜平面的前方或后方。当与囊外摘除术联合进行时，植入后房尤其有益。八年的经验（189例手术）突显了瞳孔外虹膜晶状体的一些重要优点。瞳孔不会变形，因此其形态和功能保持正常；避免了脱位的风险；并且在存在虹膜缺损的情况下也可使用该晶状体。晶状体的支撑叉由金和铂合金制成，这大大提高了其组织耐受性。到目前为止，尚未出现需要摘除这种晶状体的并发症。这种新型人工晶状体兼具有效性、安全性和技术简易性。
