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Related Concept Videos

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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, whereas...
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Related Experiment Video

Updated: May 8, 2026

Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models
08:32

Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models

Published on: March 1, 2015

Visual failure in the elderly and dysphagia.

David G Gore1, Aruna Maharaj, Nicola Doddridge

  • 1Department of Anaesthetics, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK.

BMJ Case Reports
|September 13, 2013
PubMed
Summary
This summary is machine-generated.

An elderly man experienced acute dysphagia due to two coin foreign bodies (FBs) in his esophagus. Prompt removal resolved symptoms, highlighting the importance of visual acuity in preventing FB ingestion in older adults.

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Area of Science:

  • Gastroenterology
  • Geriatrics
  • Otolaryngology

Background:

  • Foreign body (FB) ingestion is common in children and the elderly.
  • Reduced chewing ability and object discrimination contribute to FB ingestion in aged individuals.
  • Esophageal impaction is a risk for FBs that do not pass spontaneously.

Observation:

  • A 91-year-old male presented with acute dysphagia, reduced oxygen saturation, and lung crepitations.
  • Investigations revealed esophageal foreign bodies (coins) and left lung base consolidation.
  • The patient had no memory of ingesting the coins.

Findings:

  • Oesophagogastroduodenoscopy successfully removed two coin foreign bodies, resolving the dysphagia.
  • The coin ingestion was attributed to the patient's poor visual acuity.
  • The patient was referred for an eye examination and advised on safe coin handling.

Implications:

  • Visual acuity is a critical factor in medication adherence and preventing foreign body ingestion in the elderly.
  • Early recognition and endoscopic removal are key for managing esophageal foreign bodies.
  • Addressing underlying causes like poor vision is essential for preventing recurrent foreign body incidents in geriatric patients.