Comparison of two different methods of preoperative marking for toric intraocular lens implantation： bubble marker versus pendulum marker

• 作者: Javed Hussain Farooqui Archana Koul Ranjan Dutta Noshir Minoo Shroff
• 来源期刊: 国际眼科杂志：英文版
• 学科: 医学
• 关键词: toric intraocular lens pendulum marker bubble marker
• 年，卷（期）: 2016,（5）
• 页码范围: 703-706
• 页数: 4页
• 分类号: R77

摘要

AIM: To compare the accuracy of two different methods of preoperative marking for toric intraocular lens(IOL) implantation, bubble marker versus pendulum marker, as a means of establishing the reference point for the final alignment of the toric IOL to achieve an outcome as close as possible to emmetropia.·METHODS: Toric IOLs were implanted in 180 eyes of110 patients. One group(55 patients) had preoperative marking of both eyes done with bubble marker(ASICO AE-2791TBL) and the other group(55 patients) with pendulum marker(Rumex 誖 3-193). Reference marks were placed at 3-, 6-, and 9-o’clock positions on the limbus. Slit-lamp photographs were analyzed using Adobe Photoshop(version 7.0). Amount of alignment error(in degrees) induced in each group was measured.· RESULTS: Mean absolute rotation error in the preoperative marking in the horizontal axis was 2.42±1.71 in the bubble marker group and 2.83 ±2.31 in the pendulum marker group(P =0.501). Sixty percent of the pendulum group and 70% of the bubble group had rotation error ≤3(P =0.589), and 90% eyes of the pendulum group and 96.7% of the bubble group had rotation error ≤5(P =0.612).·CONCLUSION: Both preoperative marking techniques result in approximately 3 of alignment error. Both marking techniques are simple, predictable, reproducible and easy to perform.