Purpose: To compare the progression of posterior vitreous detachment (PVD) during aging among eyes of diabetics with diabetic retinopathy (DR), eyes of diabetics without DR, and eyes of nondiabetics.
Study Design: Prospective cross-sectional study.
Methods: One-hundred thirty-three diabetic eyes with DR (DR group), 254 diabetic eyes without DR (non-DR group), and 577 nondiabetic eyes (nondiabetic group) were divided into four age categories: 1) 40-49 years, 2) 50-59 years, 3) 60-69 years, and 4) 70-79 years. The PVD state was examined using swept source-optical coherence tomography and classified into five stages: 0 (non PVD), 1 (paramacular PVD), 2 (perifoveal PVD), 3 (vitreofoveal separation), and 4 (complete PVD).
Results: The PVD stage significantly progressed in the DR, non-DR, and nondiabetic groups (p <0.0001). At 40-49 and 50-59 years, the PVD stage did not differ significantly among the three groups. At 60-69 and 70-79 years, the PVD stage was significantly less progressed in the DR than the non-DR and nondiabetic groups (p ≤0.0027), and did not differ significantly between the non-DR and nondiabetic groups. At 70-79 years, complete PVD was detected in 40.6% of eyes in the DR group, 69.6% in the non-DR group, and 73.5% of eyes in the nondiabetic group.
Conclusion: PVD progresses later in diabetic eyes with DR than in diabetic eyes without DR and nondiabetics eyes at 60 and 70 years of age, suggesting a stronger vitreomacular adhesion in diabetics with DR.
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