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首页> 外文期刊>Clinical ophthalmology >Comparative study of induced changes in effective lens position and refraction after Nd:YAG laser capsulotomy according to intraocular lens design
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Comparative study of induced changes in effective lens position and refraction after Nd:YAG laser capsulotomy according to intraocular lens design

机译：根据人工晶状体设计对Nd：YAG激光囊切开术后有效晶状体位置和折射引起的变化的比较研究

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Purpose: To evaluate and compare the changes in refraction and effective intraocular lens (IOL) position between a plate-haptic IOL and a c-loop single-piece IOL after neodymium-doped yttrium aluminium garnet (YAG) laser posterior capsulotomy. Methods: In a prospective study, anterior chamber depth and subjective refraction were measured in 110 pseudophakic eyes from 110 patients, before and 1 month after YAG laser capsulotomy. Patients were divided into 2 groups according to the IOL design: group 1 (plate-haptic acrylic hydrophilic AT LISA tri 839MP?) and group 2 (c-loop acrylic hydrophobic single-piece AcrySof? SA60AT). Lens position was obtained through optical coherence biometry (Biograph WaveLight OB820?). Results: YAG laser capsulotomy was performed 37.8±9.8 months after surgery in group 1 and 40.6±8.6 months in group 2 ( p =0.125). Significant changes were found in the lens effective position after treatment in the 2 groups. The YAG posterior capsulotomy led to a change of anterior chamber depth in group 1 from 4.03±0.32 mm to 3.86±0.34 mm ( p =0.02) and in group 2 from 4.03±0.37 mm to 4.14±0.45 mm ( p =0.025). After YAG laser posterior capsulotomy, no significant changes were observed in mean spherical equivalent, sphere or cylinder for both groups ( p >0.05). Conclusion: YAG laser posterior capsulotomy can induce a significant change in the IOL position according to the IOL type; however, the refractive change after treatment is clinically insignificant.
机译：目的：评估和比较掺钕钇铝石榴石（YAG）激光后囊切开术后板状触觉IOL和c环单件IOL的屈光度和有效人工晶状体（IOL）位置的变化。方法：在一项前瞻性研究中，在YAG激光囊切术之前和之后1个月，对110例患者的110例假晶状体眼的前房深度和主观屈光度进行了测量。根据IOL设计将患者分为2组：第1组（板-触觉丙烯酸亲水性AT LISA tri 839MP ？）和第2组（c环丙烯酸疏水性单体AcrySof ？）。 SA60AT）。通过光学相干生物测定法（Biograph WaveLight OB820 ？）获得镜头位置。结果：第一组在手术后37.8±9.8个月进行YAG激光囊切开术，第二组在手术后40.6±8.6个月进行YAG激光切开术（p = 0.125）。两组治疗后的晶状体有效位置发生了显着变化。 YAG后囊切开术导致第1组的前房深度从4.03±0.32 mm改变为3.86±0.34 mm（p = 0.02），第2组的前房深度从4.03±0.37 mm改变为4.14±0.45 mm（p = 0.025）。 YAG激光后囊切开术后，两组的平均球当量，球体或圆柱体均未观察到显着变化（p> 0.05）。结论：根据AGL类型，YAG激光后囊切开术可以引起IOL位置的明显改变;然而，治疗后的屈光变化在临床上并不重要。

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