Nadig Ramya R, Deepak B, Neelamegam Vidya, Moussa George, Raman Rajiv
Shri Bhagwan Mahavir Vitreoretinal Services, Medical Research Foundation, Sankara Nethralaya, Chennai, Tamil Nadu, India.
Department of Ophthalmology, Dr. Agarwal's Health Care Ltd., Raaj Towers, Mogappair West, Chennai, Tamil Nadu, India.
Indian J Ophthalmol. 2024 May 1;72(5):692-696. doi: 10.4103/IJO.IJO_1775_23. Epub 2023 Dec 26.
Global warming is one of the greatest health threats of the 21 st century. The ophthalmic sector contributes to the emission of greenhouse gases, thus altering the natural environment. There is currently no data on global emissions of fluorinated gases in ophthalmic surgery. This retrospective study from 2017 to 2021 aims to report the carbon dioxide (CO 2 ) equivalence of sulfur hexafluoride (SF 6 ), hexafluoroethane (C 2 F 6 ), and octafluoropropane (C 3 F 8 ) at a tertiary eye center.
Data collected from 1842 surgical procedures that used injections of fluorinated gases were analyzed. Environmental impact (global warming potential over 100 years) was calculated by converting milliliters to grams by using modified ideal gas law at standard temperature and pressure for the canisters and then to their CO 2 equivalence.
Though 70% of surgeries used C 3 F 8 , the least greenhouse effect causing fluorinated gas, the total carbon emission was 1.4 metric tons. The most common indication was macular hole surgery (36.86%).
This study paves a step toward analyzing the problem statement, thus awakening us to contemplate options to make ophthalmic surgeries greener.
全球变暖是21世纪最大的健康威胁之一。眼科领域会排放温室气体，从而改变自然环境。目前尚无关于眼科手术中氟化气体全球排放量的数据。这项2017年至2021年的回顾性研究旨在报告一家三级眼科中心六氟化硫（SF₆）、六氟乙烷（C₂F₆）和八氟丙烷（C₃F₈）的二氧化碳（CO₂）当量。
分析从1842例使用氟化气体注射的手术中收集的数据。通过在标准温度和压力下使用修正的理想气体定律将罐中的毫升数转换为克数，然后将其转换为CO₂当量，计算环境影响（100年的全球变暖潜能值）。
尽管70%的手术使用了C₃F₈（造成温室效应最小的氟化气体），但总碳排放量为1.4公吨。最常见的适应症是黄斑裂孔手术（36.86%）。
本研究朝着分析问题陈述迈出了一步，从而促使我们思考使眼科手术更环保的选择。
