Author:
Eom Youngsub,Lee Young Joo,Song Jong Suk,Kim Hyo Myung,Nam Dong Heun
Abstract
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.
Publisher
Springer Science and Business Media LLC
Subject
Ophthalmology,General Medicine
Reference24 articles.
1. Ma L, Fei B. Comprehensive review of surgical microscopes: technology development and medical applications. J Biomed Opt. 2021;26(1):010901.
2. Youssef PN, Sheibani N, Albert DM. Retinal light toxicity. Eye (Lond). 2011;25(1):1–14.
3. Gomolin JE, Koenekoop RK. Presumed photic retinopathy after cataract surgery: an angiographic study. Can J Ophthalmol. 1993;28(5):221–4.
4. Michels M, Lewis H, Abrams GW, Han DP, Mieler WF, Neitz J. Macular phototoxicity caused by fiberoptic endoillumination during pars plana vitrectomy. Am J Ophthalmol. 1992;114(3):287–96.
5. Kuhn F, Morris R, Massey M. Photic retinal injury from endoillumination during vitrectomy. Am J Ophthalmol. 1991;111(1):42–6.
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献