Scotoma

Page 1 of 2 - About 20 essays
  • The Visions Of Hildegard : Analysis

    1879 Words  | 8 Pages

    The Visions of Hildegard: Scotomas and Phosphenes Oliver Sacks (2007) discussed a case study concerning Hildegard of Bingen, a nun who lived from 1098 to 1180 A.D. Hildegard experienced visual auras caused by scintillating scotomas which inspired her to write the book Scivias documenting her visual experiences (Sacks, 2007). From these illustrations and written descriptions, Sacks (2007) was able to theorize that Hildegard was actually experiencing an array of scotomas and phosphenes. Sacks (2007)

  • Causes Of Visua Scotoma

    574 Words  | 3 Pages

    The visual fields are the areas that are seen by each eye. A scotoma is a dim or totally black area in your field of vision or a small area of visual loss within the visual fields. There are often areas around the dim or black spot that have normal vision. A scotoma can therefore be thought of as an “island” of lost vision. Central scotoma means there is a blind area in the middle of the visual field, surrounded by normal vision. Scotomas do not always occur in the center of vision. They may be off

  • Extending My Knowledge of Headaches and Migraines

    536 Words  | 2 Pages

    Background There was a point where my little brother had reoccurring migraines almost every day. When he went to the doctor’s office, the doctor stated that he needed to get more rest, reduce the lighting, and minimize stress factors. With this in mind, I wanted to extend my knowledge of this type of headache disorder. Migraine is the most common headache disorder and has a cumulative lifetime migraine incidence of 43% in women and 18% in men (Ekman, 2013). A migraine headache is usually a throbbing

  • Symptoms And Symptoms Of Migraine Awareness

    2109 Words  | 9 Pages

    Migraine Awareness Have you or a loved one ever been victim of migraines? In the United States, more than thirty-seven million people are victims of this condition, more than twelve percent of the population (Migraine Statistics 1). A migraine is “a recurrent throbbing that typically affects one side of the head and is usually accompanied by nausea and disturbed vision” (Google 1). Migraines mostly occur in females, with eighteen percent, followed by six percent of males that fall prey to the disease

  • What´s Macular Degeneration?

    252 Words  | 2 Pages

    Macular Degeneration is related to retinal aging. It can be caused by long term exposure to UV light, cigarette smoking, and even by having light colored eyes. It can also be caused by not having enough dark green leafy vegetables in the diet due to lack of vitamin C, E, beta-carotene, and zinc. C. Incidence: Macular Degeneration is the most common irreversible central vision loss problem in people over 60 in the United States. D. Genetics or Genomics Considerations Macular Degeneration can be

  • Phenomenal Consciousness

    429 Words  | 2 Pages

    Dennett argued that the consciousness of events can be restored in scotoma* with self-cues or prompts (Denett, 1991). Inability to visually experience does not indicate the absence of perceptual experience of the stimuli and it could be compensated with the phenomenal states of visual experience and other form of perception

  • Traumatic Optic Neuropathy Essay

    604 Words  | 3 Pages

    Traumatic Optic Neuropathy, T.O.N, is the direct or indirect injury to the optic nerve or optic canal secondary to trauma. Patients who present with T.O.N may have partial or complete vision loss. Due to little understanding, there is no prevention and no cure for T.O.N; or laboratory models to study this condition. Most common causes are motor vehicle accidents, falls, bike accidents, and assault. Though observation is the main treatment option, systemic corticosteroids and surgical optic nerve

  • The Adult Human Brain Retains a Large Amount of Plasticity

    1590 Words  | 6 Pages

    It is now widely recognised that the adult human brain retains a larger degree of plasticity than was previously thought. This is perhaps particularly true of the neural mechanisms underlying sensory perception, where substantial behavioural and neural changes have been demonstrated in a wide variety of sensory functions following experience. Sensory plasticity has been recognised for its rehabilitative potential, for instance through perceptual training regimes, which have been used to improve visual

  • Eye Dominance

    711 Words  | 3 Pages

    Eye sensitivity and hand dominance Have you ever wondered how handedness and eye dominance are associated? Do these things have anything to do with your eyes sensitivity levels? This experiment will explore these questions and more by comparing how sensitive your eye is and how far your peripheral vision can span with left and right eyes. I will also find if ocular dominance has any play into peoples peripheral vision and how far they can see left or right. In this case, eye dominance is the variable

  • Clinical Features Of Leber 's Hereditary Optic Neuropathy Gene Omim Essay

    1148 Words  | 5 Pages

    Apeksha Nagar Module 1-Section 1 Genetics Assignment Dr. Wormington Leber’s Hereditary Optic Neuropathy Gene OMIM #535000 9/16/2016 Clinical Features Leber’s Hereditary Optic Neuropathy (LHON) is a disease caused by a point mutation in the mitochondrial genome, it is maternally inherited and largely affects males of young ages.1 LHON presents acutely or subacutely in affected individuals, the age of disease onset or vision

Previous
Page12