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.
An area of a person’s personality of which he is totally unaware, since recognition would cause painful emotions.
The optic nerve area of the retina that itself does not have the power of vision.
The point in the retina where the optic nerve joins it, which does not register light.
Point where the optic nerve leaves the retina.
Normal gap in the visual field, the result of a spot on the retina insensitive to light and located where the optic nerve enters the eye.
Portion of the retina that has no ability to perceive images.
The area on the retina (the light- sensitive layer at the back of the eye) from which the optic nerve emerges; also known as the optic disc. Since this part of the retina lacks light receptors, the optic disc is insensitive to light. In normal vision with both eyes, the blind spot is not perceived since the blind spot of one eye is covered by a seeing area of the other eye. The term “blind spot” is also sometimes used to refer to apparent holes (scotomas) in the visual field in which nothing can be seen. Scotomas can be a result of retinal disease or glaucoma.
The small area of the retina of the eye where the nerve fibers from the light sensitive cells lead into the optic nerve. There are no rods or cones in this area and hence it does not register light.
Physiological scotoma situated 15° to the outside of the visual fixation point; the point where the optic nerve enters the eye (optic disk), a region devoid of rods and cones.
The minuscule and elliptical region situated on the retina of the eye where the optic nerve departs from the eyeball is known as the blind spot. This particular area lacks sensitivity to light as it lacks light receptors, which are nerve endings that respond to light stimuli. Moreover, the term “blind spot” can also be employed to denote the portion of the visual field where objects cannot be detected.
A region on the retina that is not sensitive to light, found at the point where the optic nerve connects to the eye to create the retina, is also known as the optic disc or optic papilla.