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目的 分析总结影响Phaco术后预设计人工晶体(IOL)屈光度的因素。方法 对700例723只眼行Phaco手术联合IOL植入。术前作角膜曲率、A/B超,根据SRKⅡ公式计算预设计IOL的度数,分析术后屈光状态与术前预设计屈光度误差的原因。结果 IOL位于囊袋538只眼(占74.41％);睫状沟124只眼(占17.15％);一袢位于囊袋一袢位于睫状沟21只眼(占2.90％);前房内17只眼(占2.35％)。术后3月屈光状态(0.5～3.5D)矫正视力≥1.0为18只眼(占2.49％);0.5～0.8为48只眼(占6.64％);0.1～0.3为21只眼(占2.90％);要求保留部分近视度数18只眼(占2.49％)。结论 术前精确测量眼轴及虹膜曲率,根据SRKⅡ公式,适当调整IOL度数,术者必须熟练掌握Phaco技术,提高手术质量,减少并发症的发生,使患者术后获得最佳视力效果。
Objective To analyze and summarize the factors influencing the refraction of Phaco postoperative intraocular lens (IOL). Methods 700 patients with 723 eyes underwent Phaco surgery combined with IOL implantation. Preoperative corneal curvature, A / B super, according to SRK Ⅱ formula to calculate the degree of pre-designed IOL, analysis of postoperative refractive status and preoperative preoperative diopter error reason. Results The IOL was located in 538 eyes (74.41%) of the capsular bag and 124 eyes (17.15%) of the ciliary sulci. The first was in the capsular bag and the other was in 21 eyes (2.90%) of the ciliary sulcus. The anterior chamber 17 Eye (2.35%). The correction of visual acuity ≥1.0 in 18 eyes (2.49%) at 3 months postoperatively in 3 eyes (0.5 ~ 3.5D), 48 eyes (6.64%) in 0.5 ~ 0.8 eyes and 21 eyes (2.90% %); Required to retain some myopia 18 eyes (2.49%). Conclusions Accurate measurement of axial and iris curvature preoperatively, according to SRK Ⅱ formula, appropriate adjustment of IOL degrees, the surgeon must master Phaco technology to improve the quality of surgery and reduce the incidence of complications, so that patients get the best visual acuity after surgery.