- A disorder of the eye that is present at birth. Representative examples include congenital cataract, congenital glaucoma, and astigmatism.
- A rare congenital abnormality characterized by the complete absence of ocular tissue in the orbit.
- Absence of or defects in structures of the eye that exist at, and usually before, birth regardless of their causation.
- Congenital absence of or defects in structures of the eye; may also be hereditary.
- Congenital absence of the eye or eyes.