In April, I wrote about Healight, a device intended to treat COVID-19 by shining UV light directly into the lungs of patients on a ventilator. Its creators have finally published a clinical study. Unfortunately, it is…underwhelming.
![](https://i0.wp.com/www.respectfulinsolence.com/wp-content/uploads/2020/04/Healight1.jpg?fit=1200%2C671&ssl=1)
In April, I wrote about Healight, a device intended to treat COVID-19 by shining UV light directly into the lungs of patients on a ventilator. Its creators have finally published a clinical study. Unfortunately, it is…underwhelming.
Last week, President Trump proposed using internal light to treat COVID-19. Partisans defended him by pointing to Healight, an experimental device to do just that. It didn’t help.