From the Cincinnati Eye Institute , Cincinnati, Ohio (Osher, Figueiredo); University of Cincinnati, Cincinnati, Ohio (Osher); D'Olhos Hospital Dia (Figueiredo), S. J. Rio Preto, Brazil; Columbia University Harkness Eye Institute, New York, New York (Schneider); Hudson Eye Physicians and Surgeons, Jersey City, New Jersey (Schneider); Narvik Eye Institue, Narvik, Norway (Kratholm).
J Cataract Refract Surg. 2021 Oct 1;47(10):1327-1332. doi: 10.1097/j.jcrs.0000000000000613.
To investigate the effectiveness of a mobile laminar airflow (LAF) device designed to reduce both airborne particles and lint fibers within the sterile field during cataract surgery.
Cincinnati Eye Institute, Cincinnati, Ohio.
Prospective case series.
The number of airborne particles sized 0.5 μm, 1.0 μm, and 1.5 μm were measured at different locations and times during 116 routine phacoemulsification procedures with and without the use of a mobile LAF device. In a companion study, the presence of lint fibers in 99 eyes undergoing cataract surgery with a mobile LAF device was compared with 50 eyes in the control group. Lint fibers were differentiated as either falling onto the ocular surface or being carried into the sterile field by an instrument.
A statistically significant reduction (P < .0005) occurred in all 3 particle sizes measurements when the LAF device was used: 79.0% (93.6 ± 16.1 vs 445.3 ± 30.9), 81.7% (11.30 ± 1.98 vs 61.85 ± 5.34), and 90.8% (0.241 ± 0.056 vs 2.624 ± 0.362) in the 0.5 μm, 1.0 μm and 5.0 μm particles, respectively. Lint fibers were identified in 18% (9/50) of eyes in the control group and 16.16% (16/99) of eyes in the LAF group. Although the number of lint fibers carried into the sterile field was similar in each group, the incidence of lint fibers falling onto the sterile field was reduced from 6% (3/50) to 0% (0/99) when the LAF was used (P = .014).
The mobile LAF device was highly effective in reducing the number of particulate matter and lint fibers within the sterile surgical field when used during cataract surgery.
研究一种移动层流（LAF）设备在白内障手术中减少无菌区内空气传播颗粒和绒毛纤维的有效性。
俄亥俄州辛辛那提眼科研究所。
前瞻性病例系列。
在 116 例行常规超声乳化白内障吸除术的过程中，在不同位置和时间测量 0.5μm、1.0μm 和 1.5μm 大小的空气传播颗粒数量，并比较使用和不使用移动 LAF 设备的情况。在一项配套研究中，在使用移动 LAF 设备的 99 只眼中与对照组的 50 只眼中比较白内障手术中的绒毛纤维的存在情况。将绒毛纤维分为落在眼表面上或被器械带入无菌区的两种情况。
当使用 LAF 设备时，所有 3 种颗粒大小的测量值均出现统计学显著降低（P <.0005）：0.5μm 颗粒分别为 79.0%（93.6 ± 16.1 vs 445.3 ± 30.9）、1.0μm 颗粒为 81.7%（11.30 ± 1.98 vs 61.85 ± 5.34）、5.0μm 颗粒为 90.8%（0.241 ± 0.056 vs 2.624 ± 0.362）。对照组 50 只眼中有 18%（9/50）、LAF 组 99 只眼中有 16.16%（16/99）识别到绒毛纤维。尽管两组无菌区内带入的绒毛纤维数量相似，但使用 LAF 时无菌区上绒毛纤维的发生率从 6%（3/50）降至 0%（0/99）（P =.014）。
在白内障手术中使用时，移动 LAF 设备可有效减少无菌手术区的颗粒和绒毛纤维数量。
