ommat-, ommato- +

(Greek: eye)

basommatophora
A group of Pulmonifera having the eyes at the base of the tentacles, including the common pond snails.
ommateal
A reference to insects and crustaceans that have compound eyes.
ommateum (s), ommatidia (pl)
A compound eye, as of insects and crustaceans.
ommatophobia, ommetaphobia
An exaggerated fear of eyes.
ommatophore
A movable stalk ending with an eye, as found in certain snails.
polyommatous
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.