Visual Fixation

Visual Fixation: Changing the position of the eyeball to project an image onto the retina

Vision is one of the most important and complex human senses. It allows us to perceive the world around us, detect objects, navigate space and interact with the environment. A central role in this process is played by visual fixation - the ability of our visual system to focus on a specific object or point in the visual field.

One of the key mechanisms of visual fixation is the projection of an image of the object in question onto a specific location on the retina. The retina is a thin layer of nerve cells located on the back wall of the eyeball. It acts as a photodetector, converting light signals into nerve impulses, which are then transmitted to the optic nerve and further along the visual pathways to the brain for processing.

In order for the image of an object to fall on a certain place on the retina, it is necessary to change the position of the eyeball. The process of visual fixation begins with the orientation of the eyes towards the object of interest to us. The eye muscles are then activated to move the eyeball and establish focus at the desired point in the visual field.

This mechanism for regulating the position of the eyeball is carried out using a complex system of muscles that control eye movements. The six major eye muscles work in unison to allow the eye to move up, down, left, right and rotate. Thanks to this system, we can look in different directions, focus on different objects and make rapid oculomotor leaps, for example, when reading.

It is important to note that visual fixation is not a static process. In fact, our eyes are constantly moving, making quick and small movements called saccades between fixation points. This allows us to explore the visual field and obtain detailed information about the objects and scenes around us.

It is interesting that visual fixation is not always conscious to us. We don't usually think about how our eyes move and focus on objects because the process is instantaneous and unconscious. However, the study of visual fixation is a subject of scientific research, since understanding its mechanisms can shed light on many aspects of visual perception and allow improved treatment and rehabilitation of people with visual impairments.

In conclusion, visual fixation is a complex and important process that allows us to perceive and interact with the world around us. By changing the position of the eyeball and projecting an image onto the retina, we can focus on areas of interest.

Visual fixation or eye fixations is an unconscious process that manifests itself in limiting the field of vision to a finite area of ​​space (the active field of fixation), focused attention on this area. The field of view includes the "core" and the "rim". The first of them occurs at the site of direct contact of the eye with the retina, and the second is an additional field to the nucleus. The nucleus depends on the size of the eye