Term: lens anatomical surface
Name: lens
Synonyms: lenses
Definition: Portion of tissue that is a transparent, biconvex structure located in the eye through which light is focused.
Ontology: Anatomy Ontology [ZFA:0000035]

Name: anatomical surface
Synonyms: surface
Definition: A 2D surface of an anatomical continuant.
Ontology: Spatial Ontology [BSPO:0000005]