Althaus C, Demmer E, Sundmacher R
Universitäts-Augenklinik, Heinrich-Heine-Universität, Düsseldorf, Germany.
Ger J Ophthalmol. 1994 May;3(3):154-8.
A significantly lower intraocular pressure level was found 2 months after in-the-bag implantation of 4 different posterior-chamber lenses in a consecutive series of operations involving 401 eyes. The anterior capsular opening was achieved with either an intact continuous circular capsulorhexis (349) or a capsulorhexis with one radial tear (52). The typical shrinkage of the anterior capsule following a continuous capsulorhexis was hypothesized to be an essential part of the pressure-lowering mechanism by traction on the ciliary body via the zonula. However, a direct correlation between the degree of anterior capsular shrinkage and the degree of pressure reduction in glaucomatous and non-glaucomatous eyes could not be established. The reduction was equal in all shrinkage subgroups. Thus, the most likely explanation for intraocular pressure reduction after intracapsular implantation should be sought not in mechanical but in non-mechanical (i.e. biochemical) alterations and influences.
在连续进行的涉及401只眼的一系列手术中，对4种不同的后房型人工晶状体进行囊袋内植入，术后2个月发现眼压水平显著降低。前囊开口通过完整的连续环形撕囊（349只眼）或有一处放射状撕裂的撕囊（52只眼）完成。连续撕囊后前囊的典型收缩被认为是通过小带牵拉睫状体从而降低眼压机制的重要组成部分。然而，在青光眼和非青光眼眼中，前囊收缩程度与眼压降低程度之间未发现直接相关性。在所有收缩亚组中眼压降低程度相同。因此，囊内植入后眼压降低最可能的解释不应从机械方面寻找，而应从非机械（即生化）改变和影响方面寻找。
