手术显微镜和照明刀对前房温度的影响。

Effect of surgical microscope and illuminated chopper on anterior chamber temperature.

机构信息

Department of Ophthalmology, Ansan Hospital, Korea University College of Medicine, 123, Jeokgeum-Ro, Danwon-Gu, Ansan-Si, Gyeonggi-Do, 15355, Republic of Korea.

Department of Ophthalmology, Korea University College of Medicine, 73, Goryeodae-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea.

出版信息

BMC Ophthalmol. 2023 Jan 23;23(1):29. doi: 10.1186/s12886-023-02784-w.

DOI:10.1186/s12886-023-02784-w

PMID:36690966

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9869552/

Abstract

BACKGROUND

To evaluate the effect of the light intensity of the surgical microscope and illuminated chopper on the anterior chamber temperature.

STUDY DESIGN

Experimental study.

METHODS

A model eye (Kitaro WetLab System; FCI Ophthalmics, Pembroke, MA, USA) was used in this experimental study. The illuminance of a surgical microscope (Leica M300; Leica Microsystems, Wetzlar, Germany) and illuminated chopper (iChopper NAM-25 GB; Oculight, Korea) with a light source (iVision; Oculight) was measured using an illuminometer. In addition, the temperature in the anterior chamber of the model eye filled with balanced salt solution when using the surgical microscope with a light intensity from level 1 to level 6 and the illuminated chopper at 99% light intensity was measured for 10 min.

RESULTS

The anterior chamber temperature was increased by 0.2, 0.5, 1.0, and 1.4 ℃ when using the surgical microscope at level 3 (10050 lux), 4 (16490 lux), 5 (24900 lux), and 6 (32500 lux), respectively, for 10 min. The illuminated chopper at 99% light intensity (14893 lux) positioned in the anterior chamber increased the anterior chamber temperature by 0.2° C after 10 min, which was equal to the increase in the temperature caused by the surgical microscope at level 3.

CONCLUSION

The photothermal effect of the illuminated chopper directly positioned in the anterior chamber appeared to be similar to that of a microscope with similar illuminance. Therefore, the illuminated chopper is safe in terms of anterior chamber temperature changes in cataract surgery.

摘要

背景

评估手术显微镜和照明刀的光强对前房温度的影响。

研究设计

实验研究。

方法

本实验研究使用模型眼（Kitaro WetLab 系统；FCI Ophthalmics，Pembroke，MA，USA）。使用照度计测量手术显微镜（Leica M300；Leica Microsystems，Wetzlar，Germany）和照明刀（iChopper NAM-25GB；Oculight，韩国）的照度以及光源（iVision；Oculight）。此外，在模型眼中填充平衡盐溶液的前房温度，当使用手术显微镜的光强从 1 级到 6 级和照明刀的 99%光强时，测量 10 分钟。

结果

当使用手术显微镜的 3 级（10050 勒克斯）、4 级（16490 勒克斯）、5 级（24900 勒克斯）和 6 级（32500 勒克斯）时，前房温度分别升高了 0.2、0.5、1.0 和 1.4°C，持续 10 分钟。直接置于前房的照明刀在 99%的光强（14893 勒克斯）下 10 分钟后，前房温度升高了 0.2°C，这与手术显微镜 3 级时引起的温度升高相当。