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TOXOPLASMOSIS

Originally posted on @retina.rocks 01/12/2021

This patient presented in 1990 with what we assumed was bilateral inactive colobomatous congenital toxoplasmosis scarring.

Learning Points:
Choroidal colobomas are most commonly due to failure of the optic vesicle and choroidal fissure to close during fetal development. Multifocal lesions, as seen in our patient, can be caused by congenital toxoplasmosis and Zika.

For a comprehensive review of ocular coloboma, see Onwochei et al Surv Ophthalmol 2000;45:175-194.