Table 2
Ocular features of HLA-B27 positive and negative patients with presumed ocular bartonellosis (POB)
| Ocular features | HLA-B27 positive (n=6) | HLA-B27 negative (n=13) |
| Posterior segment involvement | 5 | 13 |
| Bilateral disease | 2 | 10 |
| Aqueous cells | 6 | 11 |
| Posterior synechiae | 4 | 5 |
| Vitreous cells | 5 | 12 |
| Macular oedema | 5 | 8 |
| Papillitis | 5 | 12 |
| Retinal lesions | 0 | 4 |
| Vasculitis | 1 | 4 |
| Initial visual acuity of <0.1 | 4/8 | 2/22 |
| Final visual acuity of <0.1 | 1/8 | 1/22 |
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↵Significantly more affected eyes with initial visual acuity of <0.1 than in HLA-B27 negative group (p=0.03).
