from The Century Dictionary and Cyclopedia
- n. In polyclads, one of a group of eyes lying above the brain: distinguished from tentacular *eyes and marginal *eyes.
Sorry, no etymologies found.
Cataract and implanted lens questions were next in prevalence, followed by brain-eye problems (neuro-ophthalmology), children's eye alignment (strabismus), eye cancers, and general discomfort or blurry vision.
But the older the child is, the less effective the treatment - and by age 9, brain-eye connections are pretty well set.