Typically, the nose is either missing or not functional. This deformity (called proboscis) forms above the center eye and is characteristic of a form of<unk>  called rhinencephaly or rhinocephaly. Most such embryos are either naturally aborted or are stillborn upon delivery. Although<unk>  is rare, several<unk>  human babies are preserved in medical museums (e.g. The Vrolik Museum, Amsterdam, Trivandrum Medical College). Some extreme cases of<unk>  have been documented in farm animals (horses, sheep, pigs, and sometimes chickens). In such cases, the nose and mouth fail to form, or the nose grows from the roof of the mouth, obstructing airflow and resulting in suffocation shortly after birth.
Cyclopia
Myopia
Diplopia
Nyctalopia
Entomopia
Hemeralopia
Ectopia 
Amblyopia