Trachoma WHO grade: corneal opacity (CO)
Licence: CC0 1.0 Universal
Credit: Trachoma WHO grade: corneal opacity (CO). Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/W0050514/full/800%2C/0/default.jpg)
Licence: CC0 1.0 Universal
Credit: Trachoma WHO grade: corneal opacity (CO). Wellcome Collection. Source: Wellcome Collection.