| ARN | acute renal necrosis; acute retinal necrosis; arcuate nucleus; Association of Rehabilitation Nurses |
|---|---|
| BARN | bilateral acute retinal necrosis |
| BRAO | branch retinal artery occlusion |
| BRVO | branch retinal vein occlusion |
| CHRPE | congenital hypertrophy of the retinal pigment epithelium |