within the eyeball; visibility of objects in the eye
• (a.) Relating to objects situated within the eye; esp., relating to the perception of objects in one`s own eye.
<ophthalmology, physiology> Relating to objects situated within the eye; especially, relating to the perception of objects in one's own eye. ... (30 Mar 1998) ... 
(en-top´tik) originating within the eye.
visual phenomena generated within vision (or more loosely within the nervous system); generally the images seen in the first stage of altered states of consciousness
Ent·op'tic adjective [ Ent- + optic .] (Physiol.) Relating to objects situated within the eye; esp., relating to the perception of objects in one's own eye. 
Type: Term Pronunciation: en-top′tik Definitions: 1. Within the eyeball. Often used to describe visual phenomena generated by mechanical or electrical stimulations of the retina.