Shinoda Kei, Matsumoto Soiti C, Yagura Kazuma, Terauchi Gaku, Shoji Takuhei, Yoshikawa Yuji, Igawa Yuro, Mizota Atsushi, Miyake Yozo
Department of Ophthalmology, Teikyo University School of Medicine, Itabashi-ku, Tokyo 173-8605, Japan.
Department of Ophthalmology, Saitama Medical University Faculty of Medicine, Iruma-gun, Saitama 350-0495, Japan.
J Clin Med. 2022 Apr 6;11(7):2053. doi: 10.3390/jcm11072053.
Vitreous temperature has been reported to vary during intraocular surgery. We measured the temperature at three intraocular sites, just posterior to the crystalline lens (BL), mid-vitreous (MV), and just anterior to the optic disc (OD), and investigated temperature changes before and after different types of surgical procedures in 78 eyes. The mean temperature at the beginning was 30.1 ± 1.70 °C in the anterior chamber, 32.4 ± 1.41 °C at the BL, 33.8 ± 0.95 °C at the MV, and 34.7 ± 0.95 °C at the OD. It was lowest at the BL, and highest at the OD. The mean temperature after cataract surgery was slightly lower especially at an anterior location. Thus, the temperature gradient became slightly flatter. The mean temperature after core vitrectomy was even lower at all sites and a gradient of the temperature was not present. The mean temperature after membrane peeling was significantly higher than that after core vitrectomy, and there was no gradient. The mean temperature after fluid/air exchange was lower at the BL and higher at the MV and at the OD. Thus, a gradient of higher temperatures at the OD appeared. The intraocular temperature distribution is different depending on the surgical procedure which can then change the temperature gradient. The temperature changes at the different intraocular sites and the gradients should be further investigated because they may affect the physiology of the retina and the recovery process.
据报道，玻璃体温度在眼内手术过程中会发生变化。我们在三个眼内部位测量了温度，分别是晶状体后（BL）、玻璃体中部（MV）和视盘前（OD），并研究了78只眼中不同类型手术前后的温度变化。开始时，前房平均温度为30.1±1.70℃，BL处为32.4±1.41℃，MV处为33.8±0.95℃，OD处为34.7±0.95℃。温度在BL处最低，在OD处最高。白内障手术后平均温度略低，尤其是在前部位置。因此，温度梯度变得略为平缓。玻璃体切割术后所有部位的平均温度更低，且不存在温度梯度。剥膜术后平均温度显著高于玻璃体切割术后，且不存在梯度。液/气交换后，BL处平均温度较低，MV和OD处较高。因此，OD处出现了较高温度的梯度。眼内温度分布因手术方式而异，进而可能改变温度梯度。不同眼内部位的温度变化及其梯度应进一步研究，因为它们可能影响视网膜的生理功能和恢复过程。
