ommat-, ommato- +

(Greek: eye)

A group of Pulmonifera having the eyes at the base of the tentacles, including the common pond snails.
A reference to insects and crustaceans that have compound eyes.
ommateum (s), ommatidia (pl)
A compound eye, as of insects and crustaceans.
ommatophobia, ommetaphobia (s) (noun) (no plural)
An exaggerated fear of eyes: When John's mother went blind, it was very traumatic for him and his family and it changed the family's everyday life completely causing John to have ommatophobia, and he was terrified when other people described their own illnesses regarding vision.
A movable stalk ending with an eye, as found in certain snails.
Having many eyes.
Stylommatophora, Stylommatophorous
A suborder of the order Pulmonata which includes land snails and slugs and many freshwater snails.

Families of medical importance include Helicellidae, Helicidae, and Pupillidae.