The eye is literally our window on the world. Through this amazing adaptation, we are able to receive energy radiation within a very narrow band of the frequencies of the modulation of some mysterious medium. The eye gathers and focuses light which our brain interprets and assembles representations of this radiation reflected and refracted off of objects that have sufficiently densely packed bundles of atomic energy, Our brain further sorts through the data in this imagery, seeks patterns among the chaos of raw information, intuitively adds data where gaps exist, builds an approximate three dimensional representation of the surroundings based on minuscule variances perceived separately by each eye, calculates mass, speed and trajectories of moving elements within the frame, establishes a sense of our relative position and movement through the surroundings and develops response strategies for our being. This happens not once, as a snapshot, but continuously, second after second. When you consider what is really going on, it is fascinating. It is all quite beautiful, too.

Every eye is unique. No two eyes are identical. Different kinds of animals have evolved different types of eyes, that more or less operate similarly, with variations, as should be expected. Some animals have greater or lesser capabilities in terms of focal length, microscopic and telescopic resolution, and also in terms of the bandwidth of the spectrum and in their varying ability to gather light in the dark. Generally, animals that have eyes on the sides of their heads use them to watch peripherally for predators. Predators, meanwhile have eyes in the front of their heads so that they can exploit stereoscopic vision to permit them to utilize depth of field to calculate the distance to their prey.

Click here for a fascinating review of photos of eyes from quite a number of animals.

For more information on how we gather and process information in the audio bandwidth, see the article on Hearing here.

For more information on the Electromagnetic Spectrum, or the range of frequencies that comprise our little-understood science of energy modulation, review this article here.