小梁切除术对青光眼患者眼部生物学参数的影响

The Influence of Trabeculectomy on Biological Parameters of Glaucoma

目的:总结有关小梁切除术后眼部生物学参数变化的证据,为青光眼联合白内障手术或抗青光眼术后再行白内障手术前人工晶体度数的选择提供临床指导。结论:小梁切除术可导致眼轴长度(AL),前房深度(ACD),晶状体厚度,脉络膜厚度和角膜曲率的短期波动和长期变化。AL,ACD和角膜曲率测量的变化对于影响白内障手术后屈光结果的预测具有重要意义。为了获得最佳屈光状态,建议延迟白内障手术,直到AL,ACD和角膜曲率在手术后约6个月达到稳定状态。

Purpose: To summarize the evidences of the changes of ocular biological parameters after tra-beculectomy, and to provide clinical guidance for the selection of intraocular lens power before combined glaucoma cataract surgery or anti-glaucoma surgery. Conclusion: With the decrease of intraocular pressure after trabeculectomy, axial length (AL) and anterior chamber depth (ACD) decrease, while lens thickness, choroidal thickness and with-the-rule astigmatism usually increase. These changes in biological parameters may affect the calculation of intraocular lens power. In order to obtain the best refractive state, it is recommended that cataract surgery be delayed until AL, ACD and corneal curvature reach a stable state about 6 months after surgery.