[deleted]
Azzam
I am not sure I understand your question as written. So I will make a few points in response and then you can come back, rather than just asking you to repeat the question.
Light is some form of physical effect. It results from a physical interaction. Sensory systems have evolved to utilise this. That is, the physical entity light, has acquired a functional role in the sensory process. But this does not alter its physically existent properties, and as such, it is just something that is moving, just like every other something. And as such we need to understand how it works. Whether you, or any other organism can 'see' something is irrelevant, it is still occurring. And what happens to any given physically existent light is also irrelevant, because light is not the reality (it is, of itself, a reality because it is existent). That light is, from the perspective of the sight sensory system, a representation of the reality.
Heisenberg's uncertainty can only apply to the sensing of reality, there is no form of uncertainty in reality. It occurred, and to do so involves certainty, whether we can define that is irrelevant. Whether what did occur was 'random' when compared to what occurred previously, is also irrelevant. Randomness is a certain form of relationship, it does not mean something strange has happened, or that the organism sensing the event had any input, which could not happen.
[Incidentally, time is not a clock, everything is a clock, because everything is changing. But I do not want to go down that road here]
Paul