Application and progress of corneal confocal microscopy in the evaluation of diabetes-related peripheral neuropathy

Diabetic peripheral neuropathy (DPN) is one of the most common chronic complications of diabetes. As a new detection method for DPN, corneal confocal microscopy (CCM) is characterised by rapid, non-invasive, sensitive, and quantitative characteristics, as well as good repeatability. By detecting changes in the corneal nerves, DPN can be diagnosed early, and the severity of neuropathy evaluated. It is currently an ideal DPN evaluation method and has good clinical application prospects. This paper reviews the application and progress of CCM in the evaluation of DPN and summarises the evaluation methods of CCM, corneal nerve, and DPN to provide new ideas for the clinical diagnosis and treatment of DPN.