Entopic

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Entopic is an adjective with at least two meanings. First, it can mean "in the usual place" to refer to medical or anatomical objects.[1] It is the opposite of ectopic, which means "not in the usual place" (such as an ectopic pregnancy).

Second, it can mean entoptic, that is "visible because of something within the eye" or "visible without an external stimulus". This meaning arises from a typographical error. [2]

Both meanings, however, can be supported etymologically: the words entopic and entoptic both have Greek roots; en means "in"; topos means "place", ento or ent- means "within" and optic refers to "sight" or "eye".

Entopic graphomania is a surrealist method in which dots are made at the sites of impurities in a blank sheet of paper, and lines are then made between the dots.

[edit] References

  1. ^ "Hutchinson Dictionary of Difficult Words".. 
  2. ^ Manor, R. S. (1990). "Erratum: Entoptic [corrected] phenomena in pregeniculate and postgeniculate hemianopsia with splitting of macula by perimetry". American Journal of Ophthalmology 109: 375.