No evidence that tirzepatide can worsen diabetic retinopathy. Reply to Fadini GP [letter]. Reassessing retinopathy risk with tirzepatide therapy. Reply to Zhang N, Wang W, Wan G [letter]. - Buckley AJ; Tan GD; Gruszka-Goh M; Scanlon PH; Ansari I; Suliman SGI (Diabetologia, 2025)