because
Normal vision in both eyes results in the right half of the visual field being dominant. The absence of vision in both eyes results in the left half of the visual field being dominant.
Hair in your eyes can obstruct your vision by limiting your field of view or causing blurred vision. It can also be distracting and cause discomfort. It's important to gently move the hair away from your eyes to ensure clear vision.
Field vision refers to the full extent of what a person can see without moving their eyes. It includes both central vision (what you see directly in front of you) and peripheral vision (what you can see out of the corners of your eyes). It is not the same as your outermost vision, which could refer to what is at the edges of your peripheral vision.
Field of vision refers to the total area in which an individual can see while their eyes are fixed straight ahead. It encompasses both central vision (focused vision) and peripheral vision (side vision). A larger field of vision allows for a wider range of visual information to be perceived.
A frogs eyes are on the side of its head which means they are suited to watching out for predators that might harm it rather than looking out for prey, the positioning of the frogs eyes give it a wide field of vision.
If there is normal vision in both eye for the right half visual field but there is absence of vision in both eyes for left half of the visual field, then the lesion is in the left eye. Since the vision for right eye is clear, the lesion is in the left.
Scotomata is an area of diminished vision within the visual field. It is in within the eyes.
The area that you can see without moving your head or your eyes.
It doesn't "improve" your vision. It allows you to see the real world in 3D - i.e. depth. Since primate eyes have a large overlap in field of vision, most of your world is 3D.
It is definitely a bad idea because the vision will decrease in the baby's eyes. In the case of one eye being covered though, the vision will be decrease in that eye while the vision in the other will increase
Cicadas have cranially-positioned eyes, on their head. However, the relative size means they have a much wider field of vision than humans.
Cats generally have better vision than dogs. They have a wider field of view and better night vision due to a higher number of rod cells in their eyes.