Chaves Mario Augusto Pereira Dias, de Medeiros André Lins, Vilar César Martins Cortez, Magalhães Klayne Rafaella Pereira, Gonçalves Michelle Rodrigues, Tzelikis Patrick Frenzel de Moraes, Hida Wilson Takashi, Carricondo Pedro Carlos, Alves Milton Ruiz
Brasília Ophthalmologic Hospital (HOB), Department of Cataract, João Pessoa, Paraíba, Brazil,
Renato Ambrosio Ophthalmologic Study Center (CEORA), Brasília, Federal District, Brazil,
Clin Ophthalmol. 2019 Feb 14;13:365-372. doi: 10.2147/OPTH.S184024. eCollection 2019.
To assess the stability and reliability of femtosecond laser-assisted cataract surgery (FLACS) incisions design and dimensions using anterior segment optical coherence tomography (AS-OCT) imaging.
Renato Ambrósio Ophthalmologic Study Center from Hospital Oftalmológico de Brasília, Brasília, Brazil.
Prospective nonrandomized controlled case series.
Eyes undergoing FLACS with triplanar main temporal clear corneal incision (CCI) were evaluated at the end of the case. Eyes that required any incision hydration, surgical complications or lacked follow-up were excluded. The AS-OCT was performed after femtosecond delivery; at the end of the case; at 1 day and at 30 days after surgery. Data of pachymetry, endothelial and epithelial gaps, Descemet detachment and CCI architecture were compared.
Eleven eyes from 11 patients completed follow-up. Corneal thickness was statistically different between after femtosecond delivery and the end of the case (-value <0.05), but without difference compared to 30 days evaluation. There was an increase of Descemet detachments (-value <0.05) and endothelial gaps (-value =0.0133) at the end of the case compared to post-femtosecond delivery. As for the architecture of the CCI, significant difference was found between the parameters of entry angle and exit angle measured with AS-OCT and the programmed.
The AS-OCT was capable of visualizing changes in the cornea at the CCI. Despite the stress caused by manipulation, results indicated good stability of incision and reproducibility of tunnel length.
Difference of corneal thickness at the CCI between after femtosecond and after phacoemulsification measurements (-value <0.05), with increase of endothelial gaps (-value =0.0133) and Descemet detachments (-value <0.05).
使用眼前节光学相干断层扫描（AS-OCT）成像评估飞秒激光辅助白内障手术（FLACS）切口设计和尺寸的稳定性及可靠性。
巴西巴西利亚市巴西利亚眼科医院的雷纳托·安布罗西奥眼科研究中心。
前瞻性非随机对照病例系列。
对接受三平面主颞侧透明角膜切口（CCI）的飞秒激光辅助白内障手术的眼睛在病例结束时进行评估。排除需要任何切口水化、手术并发症或缺乏随访的眼睛。在飞秒激光发射后、病例结束时、术后1天和30天进行AS-OCT检查。比较角膜厚度、内皮和上皮间隙、Descemet膜脱离和CCI结构的数据。
11例患者的11只眼睛完成随访。飞秒激光发射后与病例结束时角膜厚度存在统计学差异（P值<0.05），但与30天评估相比无差异。与飞秒激光发射后相比，病例结束时Descemet膜脱离增加（P值<0.05），内皮间隙增加（P值=0.0133）。至于CCI的结构，用AS-OCT测量的入射角和出射角参数与预设值之间存在显著差异。
AS-OCT能够观察到CCI处角膜的变化。尽管操作会造成压力，但结果表明切口稳定性良好，隧道长度可重复性好。
飞秒激光后与超声乳化术后CCI处角膜厚度存在差异（P值<0.05），内皮间隙增加（P值=0.0133），Descemet膜脱离增加（P值<0.05）。
