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Related Concept Videos

Visual Agnosia01:12

Visual Agnosia

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Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
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Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
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Blind Procedures02:07

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Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which...
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Prosopagnosia01:24

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Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...
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Neuroplasticity01:01

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Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
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At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
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Updated: Apr 15, 2026

Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss
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Reconstructive dilemma after blindness.

Pramod Kumar1, Virendra Singh2

  • 1Army Dental Corps, C/O 56 APO, Bathinda, India.

Journal of Maxillofacial and Oral Surgery
|April 4, 2015
PubMed
Summary
This summary is machine-generated.

Blindness from mid-facial fractures is uncommon. This case report details a rare instance of panfacial fracture causing vision loss in one eye, presenting unique surgical challenges and management dilemmas.

Keywords:
BlindnessMid-facial fracturesPanfacial fractures

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Area of Science:

  • Ophthalmology
  • Trauma Surgery
  • Maxillofacial Surgery

Background:

  • Mid-facial fractures are typically associated with ocular complications like blindness, though this is rare.
  • Panfacial fractures involve multiple facial bones and present complex reconstructive challenges.

Observation:

  • A patient with a panfacial fracture experienced complete vision loss in the right eye.
  • Reconstruction of the contralateral orbital region presented significant surgical challenges due to potential remote complications.

Findings:

  • The case highlights the rarity of blindness associated with mid-facial fractures.
  • Post-surgical vision loss is a potential, albeit remote, complication that requires careful consideration.

Implications:

  • This case underscores the need for multidisciplinary management of complex facial trauma.
  • Understanding diverse specialty philosophies is crucial for optimizing patient outcomes in severe facial injuries.