Peripapillary Retinal Nerve Fiber Layer Changes in Patients with Diabetes Mellitus: A Case-control Study - Chatziralli, Irini; Karamaounas, Aristotelis; Dimitriou, Eleni; Kazantzis, Dimitrios; Theodossiadis, George; Kozobolis, Vassilios; Theodossiadis, Panagiotis (Seminars in Ophthalmology, 2020)