PolyPhotonix

PolyPhotonix is a UK-based biophotonics company specializing in the development of organic light-emitting diode (OLED) technologies for medical applications. Its flagship product, the Noctura 400 Sleep Mask, is a non-invasive, home-based treatment for diabetic retinopathy and diabetic macular oedema. The device functions by delivering low-level light through closed eyelids during sleep to prevent dark adaptation of rod cells, thereby reducing retinal oxygen demand and preventing hypoxia. This innovative approach provides a cost-effective and patient-friendly alternative to invasive treatments such as laser photocoagulation or intravitreal injections. The company's technology is currently adopted within the UK's National Health Service (NHS) and is supported by extensive clinical evidence.