Do visual objects have karma? According to Nagarjuna, the second causal link (sankhara, motivations)
  and the tenth causal link (bhava, gestation) are two karmas through
  which sentient beings trigger seven sufferings identified in the
  Twelve Nidanas, and from this arises the revolving rebirth cycles.


The 7th link is from contact with the world, and is called Vedana:


  Feeling or sensations are of six forms: vision, hearing, olfactory
  sensation, gustatory sensation, tactile sensation, and intellectual
  sensation (thought). In general, vedanā refers to the pleasant,
  unpleasant and/or neutral sensations that occur when our internal
  sense organs come into contact with external sense objects and the
  associated consciousness.


So I take it that when the light [or equivalent in Buddhism] from an object makes contact with the eye organ, it generates Vedana.

Is it, then, incorrect to say that the object itself has karma: if the contact and feeling of it is karmically conditioned?



I'm asking because I wondered whether, when the meditator is in the fomrless absorption, or is reborn in a formless realm, she or he still experiences what most people [I know I would] class as the shape of visual consciousness, because this itself is not form, or consciousness, but itself karma.
Vedana and Sañña arise only if three conditions were present in he first place: sense organ/faculty, sense-stimuli and consciousness specific to that organ/faculty. These three conditions are what is known as 'contact'.

Kamma can be understood as intentional deeds and as the continuation of habitual intentions underlying thoughts, words and bodily actions.

As far as we know with our current understanding of physics, biology and psychology, in order for something to have intentions, that something must have the capacity to sense, to interact, to respond, to interpret, to learn, to modify its behavior according stimuli from the surroundings and from its inner world. According to what I've said, "visual objects" (if understood as entities belonging the outside, "objective" world) only would create kamma if they present the capacities above described.

I'm not sure if this answer your questions, but at least it may provide some lines for future thoughts.

Kind regards!