Floman N, Berson D, Landau L
Br J Ophthalmol. 1977 Feb;61(2):101-4. doi: 10.1136/bjo.61.2.101.
Of 70 eyes with therapeutic peripheral iridectomy (PI), 51% suffered a loss of two or more lines on the Snellen chart; 57% developed posterior synechiae (PS) and 57% showed lens opacities. Thirty-three per cent of eyes that underwent PI prophylactically had a vision drop of two lines or more, 39% developed PS and 42% showed varying degrees of lens opacities. Although vision drop, lens opacities and PS were less marked in the prophylactic group, it appears that PI is a surgical procedure not without its hazards. We therefore suggest that peripheral iridectomy should not be performed routinely on the second eye not suffering an acute attack. This procedure should be undertaken only in cases with positive provocative tests and/or clinical signs of closed angle glaucoma.
在接受治疗性周边虹膜切除术（PI）的70只眼中，51%的患者在斯内伦视力表上视力下降两行或更多；57%的患者出现了虹膜后粘连（PS），57%的患者有晶状体混浊。预防性接受PI的眼中，33%的患者视力下降两行或更多，39%的患者出现了PS，42%的患者有不同程度的晶状体混浊。虽然预防性组的视力下降、晶状体混浊和PS情况不太明显，但似乎PI是一种并非没有风险的外科手术。因此，我们建议对于未发生急性发作的另一只眼，不应常规进行周边虹膜切除术。仅在激发试验阳性和/或有闭角型青光眼临床体征的情况下才应进行此手术。
