Lochhead J, Casson R J, Salmon J F
Oxford Eye Hospital, Woodstock Road, Oxford OX2 6HE, UK.
Br J Ophthalmol. 2003 Jul;87(7):850-2. doi: 10.1136/bjo.87.7.850.
To compare the long term mean intraocular pressure (IOP) reduction after non-augmented single site phacotrabeculectomy with that after trabeculectomy and to determine the relation between preoperative IOP and IOP reduction.
A group of 44 consecutive patients with chronic open angle glaucoma who underwent phacotrabeculectomy were matched to a trabeculectomy control group and the results of surgery were compared. Linear regression analysis of preoperative IOP and IOP reduction was undertaken.
The mean IOP reduction was significantly less in the phacotrabeculectomy group (6.7 (SD 2.1) mm Hg) than in the trabeculectomy group (11.0 (1.4) mm Hg) (p=0.0017). There was a significant difference in surgical success between the groups. The preoperative IOP was significantly related to the postoperative reduction in IOP in both groups (p<0.001).
In elderly white patients with chronic open angle glaucoma, phacotrabeculectomy is not as effective as trabeculectomy in reducing IOP. In both procedures the magnitude of IOP reduction is proportional to the preoperative IOP.
比较非增强单部位晶状体小梁切除术与小梁切除术后长期平均眼压(IOP)降低情况,并确定术前眼压与眼压降低之间的关系。
将一组连续接受晶状体小梁切除术的44例慢性开角型青光眼患者与小梁切除术对照组进行匹配,并比较手术结果。对术前眼压和眼压降低情况进行线性回归分析。
晶状体小梁切除术后平均眼压降低(6.7(标准差2.1)mmHg)明显低于小梁切除术后(11.0(1.4)mmHg)(p = 0.0017)。两组手术成功率存在显著差异。两组术前眼压与术后眼压降低均显著相关(p < 0.001)。
在老年白人慢性开角型青光眼患者中,晶状体小梁切除术在降低眼压方面不如小梁切除术有效。在这两种手术中,眼压降低幅度均与术前眼压成正比。