Hadayer Amir, Zahavi Alon, Livny Eitan, Gal-Or Orly, Gershoni Assaf, Mimouni Karin, Ehrlich Rita
Department of Ophthalmology, Rabin Medical Center, Petah Tikva, Israel; and.
Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Retina. 2020 Sep;40(9):1651-1656. doi: 10.1097/IAE.0000000000002919.
To investigate the safety of face masks worn by patients during intravitreal injections.
A prospective, qualitative, interventional study performed in a tertiary university hospital. Healthy volunteers were asked to wear three different professional surgical face masks while air leaks around the eyes were monitored. Three types of masks were investigated as follows: 1) surgical face mask with four tying strips, 2) surgical face mask with elastic ear loops and 3) 2200 N95 tuberculosis particulate face mask. For each session the periocular area was inspected for air leak during normal respiration, speech, and deep respiration. Detection of air leak was performed using the following two professional thermal cameras: FLIR A310-thermal camera and EyeCGas 2.0-super sensitive infrared camera used for detection of minute fugitive emissions of industrial gases.
Ten healthy volunteers were enrolled in this study. The experiment was repeated 45 times for each camera; 3 times for each of 3 mask types, on 5 volunteers, for a total of 90 trials. Air jets were detected originating from the superior edges of the masks radiating toward the eyes in 81% (73/90) of cases in total; 71% (32/45) with the FLIR camera and 91% (41/45) with the OPGAL camera. Air leaks were detected with all investigated mask types.
Patients wearing face masks during intravitreal injections may be at a higher risk of endophthalmitis. Until further data are available, we recommend verifying proper face mask fitting and either taping the upper edges of the face masks with a medical adhesive tape or using an adhesive surgical drape around the injected eye.
研究玻璃体内注射时患者佩戴口罩的安全性。
在一家三级大学医院进行的一项前瞻性、定性、干预性研究。要求健康志愿者佩戴三种不同的专业外科口罩，同时监测眼部周围的空气泄漏情况。研究的三种口罩类型如下：1）带有四条系带的外科口罩；2）带有弹性耳挂的外科口罩；3）2200 N95结核微粒口罩。在每次实验中，在正常呼吸、说话和深呼吸时检查眼周区域是否有空气泄漏。使用以下两台专业热成像相机检测空气泄漏：FLIR A310热成像相机和用于检测工业气体微小逸散排放的EyeCGas 2.0超灵敏红外相机。
本研究纳入了10名健康志愿者。每个相机的实验重复45次；在5名志愿者身上，每种口罩类型各重复3次，总共进行90次试验。总共81%（73/90）的病例中检测到有气流从口罩上缘朝向眼睛辐射；使用FLIR相机检测到71%（32/45），使用OPGAL相机检测到91%（41/45）。所有研究的口罩类型均检测到空气泄漏。
玻璃体内注射时佩戴口罩的患者发生眼内炎风险可能更高。在获得更多数据之前，我们建议检查口罩佩戴是否合适，并用医用胶带粘贴口罩上缘或在注射眼周围使用粘性手术巾。
