This is a bit radical! and you need to re-think it. You only see the light that actually enters your eye. The term "Light" refers to the parts of the EM spectrum that our eyes can detect and we cannot see the light that is going past us without entering our eyes. If we happen to be aware of a passing beam of light, it is because of the particles (dust and, to a lesser extent, gas molecules) out there which scatter a tiny proportion of it in our direction. (Glare and fog)
Being sensitive to a wider spectrum of radiation would not alter that.
There is little point in seeing UV as there are (thankfully) relatively only low levels reaching the Earth's surface. Being sensitive more in the IR direction would not help a lot either because we would be more aware of re-radiated heat from objects than the IR that's reflected from them. Even longer wavelengths would be very inconvenient to detect because we should need enormous apertures in order to have any acuity of vision at, say microwave frequencies.
Evolution has selected the optimum bit of the spectrum that we use on the (usual) basis of cost / benefit. Every capability that an organism has involves using resources and 'Mother Nature' has very economical design criteria. (I do not intent that to be taken literally, of course.

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