small area in the visual field corresponding to the retina's optic disk or optic nerve head (where the optic nerve emerges), where no photoreceptors are present and where there is no sensitivity to light; not noticed with both eyes open because the part of the visual field containing the blind spot of one eye is overlapped by a light-sensitive area in the other eye
Sightless area within the visual field of a normal eye. Caused by absence of light-sensitive photoreceptors where the optic nerve enters the eye.
An area from which radio transmissions and/or radar echoes cannot be received. The term is also used to describe portions of the airport not visible from the control tower. (FAA4)
a spot in the field of vision that is not sensitive to light; it is a product of the entrance of the optic nerve into the eyeball, where no light receptors are present on the retina
damage to the retina , either from glaucoma or some other disease process, can cause reduced function which shows up as a "blind spot" in visual field tests.
The part of the retina that joins with the optic nerve. On this part of the eye, light cannot be detected.
Area of retina where optic nerve penetrates; is without receptor cells.
Visual scotoma, a circumscribed area of blindness or impaired vision in the visual field; by extension, an area of the personality of which the subject is unaware, typically because recognition of this area would cause painful emotions.
Areas around a commercial vehicle not visible to the driver either through the windshield, side windows, or mirrors; a common cause of truck accidents
The region of the eye that contains no visual receptors and therefore cannot produce visual sensations.
That portion of the visual field behind the line of sight, that cannot be seen without changing eye and head position.
Blank area in the visual field corresponding to the position of the optic nerve, or an area of absent or reduced sensitivity anywhere in the visual field.
a natural area of no vision in the outer periphery where the optic nerve enters the eye. Also, an area of no vision as a result of degenerated photoreceptor cells (see “scotoma”).
The area on the retina where the optic nerve enters. It is not sensitive to light since it has no visual receptors.
a subject about which you are ignorant or prejudiced and fail to exercise good judgment; "golf is one of his blind spots and he's proud of it"
the point where the optic nerve enters the retina; not sensitive to light
an area where you don't see
An area of no vision in the outer periphery caused by the location of the optic nerve hypoplasia, which doesn't contain photoreceptors
The area in the visual field that corresponds to the area where the optic nerve leaves the eye. Objects in this area are not seen.
A region of the retina where no photoreceptive cells are present, due to the exit point of the optic nerve.
corresponds to the optic disk which has no photoreceptors
(1) A small area of the retina where the optic nerve enters the eye; occurs normally in all eyes. (2) Any gap in the visual field corresponding to an area of the retina where no visual cells are present; associated with eye disease.
The area of the retina where the optic nerve exits. It is called the blind spot because there are no receptors located in this area.
Everyone has a blind spot in their vision. It is caused by a gap in the retina where the optic nerve is attached to the back of the eye. It is not normally noticed as the brain compensates for the missing vision by ‘filling in the gaps'. Sometimes, sufferers of IIH have an increased or enlarged blind spot. This may become big enough to notice gaps in vision, but is often only picked up during visual field tests.
A defect in the field of vision—one at the optic nerve is normal
Areas around a commercial vehicle that are not visible to the driver either through the windshield, side windows or mirrors.
You cannot see where the optical nerve enters your eye. You never notice it because your eyes constantly make small movements, and above all, you mind just fills in the gap. It just guesses what should be there. The blind spot is actually quite big, as you can see on the test elsewhere on this site.
An insensitive area of the retina where the nerve fibers from the ganglion cells join to form the optic nerve.
The area close to a sensor lens, where light energy is returned to the emitter rather than the receiver, rendering the sensor effectively blind. This effect is most pronounced with some retroreflective sensors.
Blind spots, in the context of driving an automobile, are the areas of the road that cannot be seen while looking forward or through either the rear-view or side mirrors. Blind spots can be eliminated by overlapping side and rear-view mirrors, or checked by turning one's head briefly, or by adding another mirror with a larger field of view. Detection of vehicles or other objects in blind spots may also be aided by systems such as video cameras or distance sensors, though these are not common in automobiles sold to the general public.
A blind spot, also known as a scotoma, is an obscuration of the visual field. A particular blind spot known as the blind spot, or physiological blind spot, is the place in the visual field that corresponds to the lack of light-detecting photoreceptor cells on the optic disc of the retina where the optic nerve passes through it. Since there are no cells to detect light on the optic disc, a part of the field of vision is not perceived.