Though in acute conditions, this is effective in the short term, it is thought that chronically high levels of ROS-induced oxidative stress may cause severe tissue damage, leading to a number of diseases including inflammatory joint disease, insulin-dependent diabetes mellitus, asthma, cardiovascular disease, and many neurodegenerative diseases, e.g., Alzheimers and amyotrophic lateral sclerosis (ALS or Lou Gehrigs disease a progressive neurodegenerative disorder which affects motor-neuron cells in the brain and the spinal chord, leading ultimately to total paralysis)
Eating a light meal before your appointment can help reduce this
Hsieh MJ, Lee CH, Chueh HY, Chang GJ, Huang HY, Lin Y, et al
Greenberg describes, leading to longer-term solutions rather than temporary pain relief
Molecular bioSystems 10 , 15861595, (2014)
Realistic expectations center on disease prevention and slowing progression rather than vision restoration or enhancement in healthy eyes