Eye movement

Animals with compound eyes have a wide field of vision, allowing them to look in many directions. To see more, they have to move about their entire head or even body.The visual system in the brain is too slow to process that information if the images are slipping across the retina at more than a few degrees per second. Thus, for humans to be able to see while moving, the brain must compensate for the motion of the head by turning the eyes. Another complication for vision in frontal-eyed animals is the development of a small area of the retina with a very high visual sharpness. This area is called the fovea, and covers about 2 degrees of visual angle in people. To get a clear view of the world, the brain must turn the eyes so that
the image of the object of regard falls on the fovea. Eye movements are thus very essential for visual perception, and any failure to make them correctly can lead to serious visual disabilities.Having two eyes is an added complication, because the brain must point both of
them accurately enough that the object of regard falls on corresponding points of the two retinas; otherwise, double vision would occur. The movements of different body parts are controlled by striated muscles acting around joints. The movements of the eye are no exception, but they have special advantages not shared by skeletal muscles and joints, and so are considerably different.

Eye movement

Animals with compound eyes have a wide field of vision, allowing them to look in many directions. To see more, they have to move about their entire head or even body.The visual system in the brain is too slow to process that information if the images are slipping across the retina at more than a few degrees per second. Thus, for humans to be able to see while moving, the brain must compensate for the motion of the head by turning the eyes. Another complication for vision in frontal-eyed animals is the development of a small area of the retina with a very high visual sharpness. This area is called the fovea, and covers about 2 degrees of visual angle in people. To get a clear view of the world, the brain must turn the eyes so that
the image of the object of regard falls on the fovea. Eye movements are thus very essential for visual perception, and any failure to make them correctly can lead to serious visual disabilities.Having two eyes is an added complication, because the brain must point both of
them accurately enough that the object of regard falls on corresponding points of the two retinas; otherwise, double vision would occur. The movements of different body parts are controlled by striated muscles acting around joints. The movements of the eye are no exception, but they have special advantages not shared by skeletal muscles and joints, and so are considerably different.

Eye movement

Animals with compound eyes have a wide field of vision, allowing them to look in many directions. To see more, they have to move about their entire head or even body.The visual system in the brain is too slow to process that information if the images are slipping across the retina at more than a few degrees per second. Thus, for humans to be able to see while moving, the brain must compensate for the motion of the head by turning the eyes. Another complication for vision in frontal-eyed animals is the development of a small area of the retina with a very high visual sharpness. This area is called the fovea, and covers about 2 degrees of visual angle in people. To get a clear view of the world, the brain must turn the eyes so that
the image of the object of regard falls on the fovea. Eye movements are thus very essential for visual perception, and any failure to make them correctly can lead to serious visual disabilities.Having two eyes is an added complication, because the brain must point both of
them accurately enough that the object of regard falls on corresponding points of the two retinas; otherwise, double vision would occur. The movements of different body parts are controlled by striated muscles acting around joints. The movements of the eye are no exception, but they have special advantages not shared by skeletal muscles and joints, and so are considerably different.

Eye movement

Animals with compound eyes have a wide field of vision, allowing them to look in many directions. To see more, they have to move about their entire head or even body.The visual system in the brain is too slow to process that information if the images are slipping across the retina at more than a few degrees per second. Thus, for humans to be able to see while moving, the brain must compensate for the motion of the head by turning the eyes. Another complication for vision in frontal-eyed animals is the development of a small area of the retina with a very high visual sharpness. This area is called the fovea, and covers about 2 degrees of visual angle in people. To get a clear view of the world, the brain must turn the eyes so that
the image of the object of regard falls on the fovea. Eye movements are thus very essential for visual perception, and any failure to make them correctly can lead to serious visual disabilities.Having two eyes is an added complication, because the brain must point both of
them accurately enough that the object of regard falls on corresponding points of the two retinas; otherwise, double vision would occur. The movements of different body parts are controlled by striated muscles acting around joints. The movements of the eye are no exception, but they have special advantages not shared by skeletal muscles and joints, and so are considerably different.

Eye movement

Animals with compound eyes have a wide field of vision, allowing them to look in many directions. To see more, they have to move about their entire head or even body.The visual system in the brain is too slow to process that information if the images are slipping across the retina at more than a few degrees per second. Thus, for humans to be able to see while moving, the brain must compensate for the motion of the head by turning the eyes. Another complication for vision in frontal-eyed animals is the development of a small area of the retina with a very high visual sharpness. This area is called the fovea, and covers about 2 degrees of visual angle in people. To get a clear view of the world, the brain must turn the eyes so that
the image of the object of regard falls on the fovea. Eye movements are thus very essential for visual perception, and any failure to make them correctly can lead to serious visual disabilities.Having two eyes is an added complication, because the brain must point both of
them accurately enough that the object of regard falls on corresponding points of the two retinas; otherwise, double vision would occur. The movements of different body parts are controlled by striated muscles acting around joints. The movements of the eye are no exception, but they have special advantages not shared by skeletal muscles and joints, and so are considerably different.

Eye movement

Animals with compound eyes have a wide field of vision, allowing them to look in many directions. To see more, they have to move about their entire head or even body.The visual system in the brain is too slow to process that information if the images are slipping across the retina at more than a few degrees per second. Thus, for humans to be able to see while moving, the brain must compensate for the motion of the head by turning the eyes. Another complication for vision in frontal-eyed animals is the development of a small area of the retina with a very high visual sharpness. This area is called the fovea, and covers about 2 degrees of visual angle in people. To get a clear view of the world, the brain must turn the eyes so that
the image of the object of regard falls on the fovea. Eye movements are thus very essential for visual perception, and any failure to make them correctly can lead to serious visual disabilities.Having two eyes is an added complication, because the brain must point both of
them accurately enough that the object of regard falls on corresponding points of the two retinas; otherwise, double vision would occur. The movements of different body parts are controlled by striated muscles acting around joints. The movements of the eye are no exception, but they have special advantages not shared by skeletal muscles and joints, and so are considerably different.

Eye movement

Animals with compound eyes have a wide field of vision, allowing them to look in many directions. To see more, they have to move about their entire head or even body.The visual system in the brain is too slow to process that information if the images are slipping across the retina at more than a few degrees per second. Thus, for humans to be able to see while moving, the brain must compensate for the motion of the head by turning the eyes. Another complication for vision in frontal-eyed animals is the development of a small area of the retina with a very high visual sharpness. This area is called the fovea, and covers about 2 degrees of visual angle in people. To get a clear view of the world, the brain must turn the eyes so that
the image of the object of regard falls on the fovea. Eye movements are thus very essential for visual perception, and any failure to make them correctly can lead to serious visual disabilities.Having two eyes is an added complication, because the brain must point both of
them accurately enough that the object of regard falls on corresponding points of the two retinas; otherwise, double vision would occur. The movements of different body parts are controlled by striated muscles acting around joints. The movements of the eye are no exception, but they have special advantages not shared by skeletal muscles and joints, and so are considerably different.

Eye movement

Animals with compound eyes have a wide field of vision, allowing them to look in many directions. To see more, they have to move about their entire head or even body.The visual system in the brain is too slow to process that information if the images are slipping across the retina at more than a few degrees per second. Thus, for humans to be able to see while moving, the brain must compensate for the motion of the head by turning the eyes. Another complication for vision in frontal-eyed animals is the development of a small area of the retina with a very high visual sharpness. This area is called the fovea, and covers about 2 degrees of visual angle in people. To get a clear view of the world, the brain must turn the eyes so that
the image of the object of regard falls on the fovea. Eye movements are thus very essential for visual perception, and any failure to make them correctly can lead to serious visual disabilities.Having two eyes is an added complication, because the brain must point both of
them accurately enough that the object of regard falls on corresponding points of the two retinas; otherwise, double vision would occur. The movements of different body parts are controlled by striated muscles acting around joints. The movements of the eye are no exception, but they have special advantages not shared by skeletal muscles and joints, and so are considerably different.

Eye movement

Animals with compound eyes have a wide field of vision, allowing them to look in many directions. To see more, they have to move about their entire head or even body.The visual system in the brain is too slow to process that information if the images are slipping across the retina at more than a few degrees per second. Thus, for humans to be able to see while moving, the brain must compensate for the motion of the head by turning the eyes. Another complication for vision in frontal-eyed animals is the development of a small area of the retina with a very high visual sharpness. This area is called the fovea, and covers about 2 degrees of visual angle in people. To get a clear view of the world, the brain must turn the eyes so that
the image of the object of regard falls on the fovea. Eye movements are thus very essential for visual perception, and any failure to make them correctly can lead to serious visual disabilities.Having two eyes is an added complication, because the brain must point both of
them accurately enough that the object of regard falls on corresponding points of the two retinas; otherwise, double vision would occur. The movements of different body parts are controlled by striated muscles acting around joints. The movements of the eye are no exception, but they have special advantages not shared by skeletal muscles and joints, and so are considerably different.