Περίληψη:
Purpose To evaluate peripapillary retinal nerve fiber layer (RNFL)
changes in patients with diabetes mellitus (DM) and compare them with
those of normal population. In addition, this study aims to determine
potential factors, affecting RNFL changes in patients with DM. Methods
Participants in this study were 107 patients (211 eyes) with DM and 100
healthy controls (200 eyes). Diabetic patients were further classified
into four groups depending on severity of diabetic retinopathy (no
retinopathy, mild, moderate, severe nonproliferative diabetic
retinopathy, and proliferative diabetic retinopathy, while presence of
macular edema was also assessed. All participants underwent
spectral-domain optical coherence tomography (SD-OCT) to measure RNFL
thickness, while demographic and clinical characteristics of the
participants were also recorded. Results Patients with DM with or
without DR presented significantly decreased peripapillary RNFL
thickness in all quadrants. In the diabetic group, the multivariate
analysis showed a significant association between decreased average RNFL
thickness and increased HbA1c (p< 0.001), longer DM duration (p= 0.007),
and more severe diabetic retinopathy status (p= 0.016), while presence
of DME, age, gender, hypertension, and hyperlipidemia were not found to
be associated with RNFL thickness decrease. Conclusion Diabetes mellitus
seems to affect RNFL thickness, suggesting that early neurodegenerative
changes may occur, potentially before microvascular alterations. Since
duration of disease, DR severity, and HbA1c levels were associated with
RNFL thinning, modifying glycemic control seems to be important to
potentially prevent the development of DM complications.
Συγγραφείς:
Chatziralli, Irini
Karamaounas, Aristotelis
Dimitriou, Eleni and
Kazantzis, Dimitrios
Theodossiadis, George
Kozobolis, Vassilios
and Theodossiadis, Panagiotis
