The company behind the Noctura 400 sleep mask for treating diabetic eye disease (DED), PolyPhotonix, has secured a vital US$10 million investment as support during FDA clinical trials. The Noctura 400 uses OLEDs fitted inside a pod and is for people with Type 1 and Type 2 diabetes to manage or prevent diabetic retinopathy.
https://www.notebookcheck.net/Noctura-400-non-invasive-OLED-diabetic-eye-disease-treatment-attracts-US-10-million-investment-ahead-of-FDA-clinical-trial.596065.0.html