Photoreception by human eye requires energy and the energy is acquired by oxidation of organic molecules created during the Photosynthetic process. Plants have the ability called Photoreception and yet they do not have the capacity called Vision. Man has the ability called Photoreception and performs the sensory function called Vision and yet he directly, or indirectly depends upon the photorecognitive abilities of plants that cannot see the products of their photosynthetic function.
God is Light. Light is Life. Optics, the scientific study of Light must include the spiritual functions and properties of Light.