Fig 4. Scatter plots of generalized equations between the 6^th EDTRS subfield retinal thickness and peripapillary retinal nerve fiber layer thickness.

A) and B) show the relationship between the 6^th subfield retinal thickness and average or temporal RNFL thickness in patients with diabetic macular edema (group I). C) and D) show the relationship between the 6^th subfield retinal thickness and average or temporal RNFL thickness in patients without diabetic macular edema (group II).