Cataract and IOL Services, Aravind Eye Hospital and Post Graduate Institue of Ophthalmology, Madurai, Tamil Nadu, India.
Indian J Ophthalmol. 2023 Aug;71(8):2978-2983. doi: 10.4103/IJO.IJO_37_23.
To compare the slit-lamp method and wavefront aberrometry method based on outcomes of toric realignment surgeries.
Tertiary care ophthalmic hospital.
Retrospective study.
This study included all eyes undergoing toric intraocular lens (TIOL) realignment surgery between January 2019 and December 2021 for which TIOL axis assessment by slit-lamp method and wavefront aberrometry method was available. Data were retrieved from electronic medical records, and we documented demographics, uncorrected visual acuity (UCVA), subjective refraction, and TIOL axis by slit-lamp and wavefront aberrometry methods on postoperative day 1 and day 14. In patients with misalignment, TIOL was realigned to the original position in group 1 (27 patients) and to an axis based on calculations provided by wavefront aberrometer in group 2 (25 patients). Post-realignment surgery, UCVA, subjective refraction, and TIOL axis by slit-lamp and wavefront aberrometry methods were assessed and analyzed.
We analyzed 52 eyes and found that the mean preoperative misalignment with the slit-lamp method (44.9° ±20.0°) and wavefront aberrometry (47.1° ±19.5°) was similar. The corresponding degrees of misalignment post-TIOL repositioning surgeries were 5.2° ±5.2° (slit-lamp method) and 4.7° ±5.1° (wavefront aberrometry) (P = 0.615). Both groups showed significant improvement in median log of minimum angle of resolution (logMAR) UCVA and reduction in median refractive cylinder.
Slit-lamp method is as good as wavefront aberrometer method to assess TIOL axis. Toric realignment surgery is found to be safe, and realigning TIOL based on either slit-lamp method or wavefront aberrometer method equally improved UCVA and decreased residual refractive cylinder.
比较基于散光矫正手术结果的裂隙灯法和波前像差法。
三级眼科医院。
回顾性研究。
本研究纳入 2019 年 1 月至 2021 年 12 月期间行散光人工晶状体（Toric IOL）矫正手术且可获取裂隙灯法和波前像差法评估的 Toric IOL 轴位的所有患者。从电子病历中提取数据，记录患者的人口统计学特征、未矫正视力（UCVA）、主观验光和术后第 1 天和第 14 天裂隙灯法和波前像差法测量的 Toric IOL 轴位。在第 1 组（27 例）中，将 Toric IOL 重新定位到原始位置，在第 2 组（25 例）中，根据波前像差仪的计算结果将 Toric IOL 重新定位到新的位置。评估和分析术后 Toric IOL 再定位手术的 UCVA、主观验光和裂隙灯法及波前像差法测量的 Toric IOL 轴位。
共分析了 52 只眼，发现裂隙灯法（44.9°±20.0°）和波前像差法（47.1°±19.5°）术前平均失联络角度相似。Toric IOL 重新定位手术后的相应失联络角度分别为 5.2°±5.2°（裂隙灯法）和 4.7°±5.1°（波前像差法）（P=0.615）。两组患者的最小分辨角对数视力（logMAR）UCVA中位数均显著提高，屈光度柱中位数均显著降低。
裂隙灯法与波前像差法评估 Toric IOL 轴位一样准确。Toric 重新定位手术是安全的，基于裂隙灯法或波前像差仪法重新定位 Toric IOL 均可改善 UCVA 并减少残余屈光度柱。
