Abstract
Background
Behçet disease is an obliterative and necrotizing systemic vasculitis that involves different organ systems. It affects both arteries and veins, mainly the veins. Ocular affection is one of the major criteria of Behçet disease; the most common ocular presentation is bilateral non-granulomatous panuveitis with retinal vasculitis.
Purpose
To identify early, evaluate and follow-up properly the posterior segment involvement in Behçet disease cases with the help of Fundus fluorescein angiography and Optical coherence tomography.
Patients and Methods
This is a descriptive cross sectional study involved 40 eyes. All patients had a complete ophthalmological examination, a comprehensive history taking as well as review of systems and the laboratory tests. This is followed by pupillary dilatation and retinal imaging by fundus fluorescein angiography and optical coherence tomography.
Results
On ophthalmological examination, 35 eyes had retinal affection due to Behçet disease and 5 eyes are retina-free. The most common retinal affection was vasculitis in 29 eyes, followed by optic nerve affection in 10 eyes then less common was retinitis in 6 eyes. Regarding visual acuity (VA) 14 eyes had low visual acuity of less than (6/60), 21 eyes had VA between (6/60 – 6/12) and 5 eyes had good visual acuity of more than (6/12). Fluorescein angiograms showed that, 36 eyes representing 90% of the total eyes had abnormal angiogram; vascular leakage was the commonest abnormality in 29 eyes, less common was optic disc edema in 12 eyes, then retinitis in 6 eyes. Macular edema was present in the angiogram of 6 eyes. About OCT, there were abnormalities in 33 eyes; macular edema was the most common in 21 eyes, epiretinal membrane (ERM) in 9 eyes, then neurosensory detachment (NSD) and macular hole each was seen in 4 eyes.
Conclusion
This study demonstrated that posterior pole involvement, retinal vascular leakage, optic disc hyperfluorescence, and macular leakage are significantly associated with worse VA in Behçet retinal vasculitis. This suggests that, use of Fundus Fluorescein Angiography and Optical Coherence Tomography in evaluation of Behçet retinal vasculitis is clinically significant in predicting visual prognosis and determining of treatment efficacy.
Optical coherence tomography angiography findings in patients with ocular and non-ocular Behcet disease
