Chapter 6

There are just two types of photoreceptors in the human eyes. These light-sensitive cells are the rods and cones, which are located in the retina. The cones, more precisely set in the Fovea, the central part of the eye responsible for visual acuity. Then, there is the peripheral area where the rodes are placed in a higher concentration than cones.  The differences in the way that the photoreceptors are distributed reflect in how people experience the sense of vision, according to the characteristics of the environment.  The cones give us the capacity to focus on tiny things and see details. But when we have to focus on things that are far from us, and in special situations that light is not favorable, these images that we see will be processed by the peripheral area where rods are located.  

Threfore, depending on the circumstances and on what has been focused, you can rely more on cones or rods.  Generally, when trying to see faint stars or distant lights when the conditions there are offered at the time are characterized by dim light, it will be more beneficial to look just off the side of the location, when the rods are responsible for giving you a better dimension of what should be perceived in such panorama, enabling you to see better under poor light conditions. This good advice is essential knowledge you have to get in mind, not just to get some advantage under the different environmental circumstances. Still, it becomes beneficial when you do not want to lose marks on your knowledge test to get a Manitoba's driver license in Winnipeg.