Dictionary > Blind spot

Blind spot

Definition
noun
(1) Anatomically, the region in the retina that is not sensitive to light and where the optic nerve and blood vessels pass through
(2) The obscuration in the visual field as caused by the lack of photoreceptors on the optic disc
Supplement
Most vertebrates, including humans, have a blind spot in their vision field. Cephalopods, in contrast, are the animals that do not have a blind spot.
A blind spot is a normal phenomenon first to be documented by Edme Mariotte in 1660s. A blind spot in the vision though does not create a “hole” in the vision field but a continuous background filled in by the brain. Thus, there could be some details or information that may go unnoticed due to blind spot.
Variant(s):

  • blindspot
  • physiological blind spot

Synonym(s):

  • scotoma
  • punctum caecum
  • See also:

    • optic disc


    You will also like...

    Circulation
    Circulation

    The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..

    Direct and indirect physiologic effects of growth hormone
    Animal Growth Hormones

    Hormones are produced in the endocrine glands of animals. The pituitary gland and hypothalamus are the most impor..

    green plant cells
    Plant Cells vs. Animal Cells

    Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..

    Adaptive Radiation
    Adaptive Radiation

    The diversification of several new species from a recent ancestral source, each adapted to utilize or occupy a vacant ad..

    Pink Lotus plant on a pond
    Freshwater Lentic Communities & Animals

    This tutorial looks at some of the communities in freshwater lentic habitats. For instance, symbiosis occurs in a commun..

    Physical growth
    Physical Development in Humans

    This tutorial elaborates on the physical development of humans, particularly from puberty to adulthood. Read this tutori..