Vision plays a large part in the memory's process. The better an image is processed the easier it is to recall later. The more relaxed the eyes are, the better they can absorb an image. Too much stress and strain on the eyes are the main causes of most eye problems and ailments.
The brain and the eyes work closely as a team. The eyes have to first capture an image and focus on the shape, size, and colors. The mind needs to interpret that information which is seen and then store it for recall later. Images that we see daily take mere seconds to interpret and remember. New images take a little bit longer. The more focused the eyes are on an image the more strong the memory will become. When looking at new object, pay attention to the lines around it, the borders, colors, size, shape, and anything else that will make recall easier later. Of course, the more relaxed the eyes are the quicker the mind can process and memorize new objects.
Concentrating too hard or focusing on images that doesn't interest us causes unneeded strain and it will be difficult to remember them later. In order to maximize the memory, the image must first be viewed in a calm and relaxed manner. Below is a short exercise to try in order to get the mind and eyes to relax and work together properly.
First find a comfortable position, this could be sitting in your favorite chair or lying on the floor. Whichever your preference, make sure the spine is straight and the hands are relaxed at your side. Next, close your eyes and picture the number 5 down to 0 in your mind. Exhaling, really see the 5 in your mind. Let the eyes follow the black lines of the 5 and really picture the number. Relax and exhale completely by letting all the air out of your lungs until you naturally take the next breath.
Allow the lungs to fill completely with air and then picture the number 4. Again, picture the number completely while you exhale. Really see the lines, the black color, the shape; don't stop picturing the number until all the air has left your lungs and the next breath comes naturally. Do this all the way down to 0.
In time you should be able to visualize images in the mind more clearly and feel more relaxed in the processed.