retinal has definitions from the fields of color,ophthalmology
1
[ adjective ] (ophthalmology) in or relating to the retina of the eye

Examples

"retinal cells"

Used in print

(Nathan Rapport, ""I've Been Here before!"...)

But why is it necessary to reproduce the retinal image within the brain ?

As retinal images are conceded to be an integral function of the brain it seems logical to suppose that the nerves , between the inner brain and the eyes , carry the direct drive for cooperation from the various brain centers - rather_than to theorize on the transmission of an image which is already in required location .

Hereby , the external object viewed by the eyes remains the thing that is seen , not the retinal image , the purpose of which would be to achieve perceptive cooperation by stirring sympathetic impulses in the other sensory centers , motor tensions , associated word symbols , and consciousness .

Related terms

retina

2
[ noun ] (color) either of two yellow to red retinal pigments formed from Rhodopsin by the action of light

Synonyms

retinene

Related terms

pigment visual_purple

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