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视网膜血管密度变化后FS-LASIK的近视不同轴长度的近视

Cai-Yun Fu¹, Yan Zheng¹, Chang-Bin Zhai¹

¹Department of Ophthalmology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.

International journal of ophthalmology

|September 25, 2025

概括

在 Femtosecond激光辅助in situ (FS-LASIK) 角质疏松症期间,轴长度 (AL) 和吸收强度的增加可能会导致斑块表面毛细管血管密度 (SCP-VD) 的暂时下降. 这个斑点SCP-VD在手术后一周内恢复到正常水平.

科学领域:

眼科医生眼科眼科
视网膜成像视网膜成像
角膜外科手术角膜外科手术

背景情况:

Femtosecond激光辅助的 in situ 角膜修复 (FS-LASIK) 是一种常见的折射手术.
了解像吸力强度和轴长度 (AL) 这样的手术参数对视网膜血管结构的影响对于患者的治疗结果至关重要.
光学连贯断层扫描血管造影 (OCTA) 允许对视网膜血管密度 (VD) 的非侵入性评估.

研究的目的:

在接受FS-LASIK的近视患者中,比较不同负压吸水水平对黄斑和视觉盘视网膜血管密度 (VD) 的影响.
调查不同轴长 (AL) 对FS-LASIK后这些血管变化的影响.
为了评估不同秒激光平台 (VisuMax vs. WaveLight FS200) 对视网膜视频显示器的影响.

主要方法:

一项前性,非随机的,受控研究,涉及108名接受FS-LASIK的参与者.
参与者被分为短AL (SAL) 和长AL (LAL) 组.
视网膜血管密度 (VD) 在手术前和手术后1天,1周和1个月使用OCTA进行评估.

主要成果:

在长期AL组中,与VisuMax亚组相比,WaveLight FS200亚组在手术后1天显示出黄斑表面毛细血管血管密度 (SCP-VD) 暂时下降.
这种SCP-VD在偏和整个黄斑区域的减少是暂时的,在经过1周和1个月的术后,水平恢复到基线.
在子组或组之间没有观察到深毛细管血管密度 (DCP-VD) 或视神经头血管密度 (ONH-VD) 的显著差异.

结论:

在FS-LASIK期间,轴长度和吸力强度的增加可能会导致斑点SCP-VD.的短暂减少.
斑点SCP-VD在FS-LASIK后一周内恢复到手术前的水平.
轴长和吸力强度似乎不会影响斑点DCP-VD或ONH-VD.

关键词:

在FS-LASIKIK中使用.轴长的轴长是指轴的长度.短视近视近视近视近视近视近视近光学连贯性断层扫描血管图谱船舶密度是指船舶的密度.

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