We can see through the eyes, these visual organs able to detect light and convert it into electrochemical impulses that then travel through the neurons. They consist of a complex system that captures optimal light intensity regulated through the iris, focus the lens thanks to the lens in order to form the image, and then converted into a set of electrical signals that ultimately reach the brain through of neural pathways connecting through optimal nerve.
Eye care and protection is simply essential to maintain good vision. It is important to use photochromic lenses (glasses) every day we went outside, avoid prolonged exposure to air conditioning or computer screen, not abuse contact lenses and above all go to the ophthalmologist at least once a year in order to fulfill ourselves an eye exam, no matter how old that we are. The reason is clear: we can take a long time unless we actually realize that we have an eye problem.