The clinical and histological examination in a case of pseudogliomata demonstrated a subretinal tube-like larval burrow connecting the optic disc with peripheral ocular structures. This clinicopathological sign is thought to present objective evidence of toxocara infection.
O'Connor PR. Visceral Larva Migrans of the EyeSubretinal Tube Formation. Arch Ophthalmol. 1972;88(5):526-529. doi:10.1001/archopht.1972.01000030528011