Platelet Activation in Ocular Behçet's Patients with Posterior Segment Involvement.

Area of Science:

• Ophthalmology
• Hematology
• Immunology

Background:

• Ocular Behçet's disease (BD) is a systemic inflammatory disorder affecting the posterior segment of the eye.
• Vascular occlusion is a significant complication in ocular BD, potentially linked to platelet activation.

Purpose of the Study:

• To evaluate platelet activation in ocular Behçet's disease by measuring mean platelet volume (MPV), platelet distribution width (PDW), and plateletcrit (PCT).

Main Methods:

• The study included 29 patients with active ocular BD, 40 with inactive ocular BD, and 40 healthy controls.
• Complete ophthalmologic evaluations were performed.
• Levels of MPV, PDW, and PCT were measured in all participants.

Main Results:

• Mean MPV, PDW, and PCT levels were significantly higher in ocular BD patients (both active and inactive) compared to healthy controls (P < 0.05).
• Specific values: MPV (Group 1: 8.40 ± 0.97, Group 2: 8.32 ± 1.04, Group 3: 7.77 ± 0.72); PDW (Group 1: 15.12 ± 1.09, Group 2: 14.97 ± 1.02, Group 3: 14.52 ± 0.82); PCT (Group 1: 0.23 ± 0.07, Group 2: 0.21 ± 0.04, Group 3: 0.18 ± 0.03).

Conclusions:

• Elevated MPV, PDW, and PCT suggest increased platelet activation in ocular BD.
• Platelet activation may contribute to vascular occlusion in ocular BD patients, particularly those with posterior segment involvement.