Changes in corneal thickness have been correlated with severity of diabetic retinopathy. Measuring light scatter at the central cornea may reflect the changes in corneal thickness and hence the retinopathy. This study compared the peak central corneal light scatter between 22 insulin-dependent diabetic patients with disease of at least 10 years' duration and 29 controls. No significant difference was found in the light-scattering properties of the central cornea between the two groups. This technique does not offer an alternative method of screening for diabetic retinopathy.
Cornea Diabetic Retinopathy