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Related Concept Videos

UV–Vis Spectrometers01:14

UV–Vis Spectrometers

The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell. Samples for...
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Related Experiment Video

Updated: Jun 27, 2026

Doppler Optical Coherence Tomography of Retinal Circulation
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In-Clinic Detection of Optic Disc Drusen Using Hand-Held Ultrasound Technology.

Casey Judge1, Collin McClelland2, Michael S Lee2

  • 1Lehigh Valley Health Network Fleming Neuroscience Institute, Allentown, Pennsylvania, USA.

Neuro-Ophthalmology (Aeolus Press)
|May 17, 2024
PubMed
Summary

A new handheld ultrasound device can identify optic disc drusen (ODD), a common cause of swollen optic nerves, in outpatient settings. This portable technology offers a more affordable and efficient way to diagnose ODD, improving patient care.

Keywords:
B-scanOptic disc drusennovel technologypapilloedemaultrasonography

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Area of Science:

  • Ophthalmology
  • Medical Imaging
  • Neuro-ophthalmology

Background:

  • Papilledema is a common reason for neuro-ophthalmology referrals.
  • Optic disc drusen (ODD) can mimic papilledema, causing optic nerve swelling.

Observation:

  • A novel, handheld, portable ultrasound device was developed.
  • This device was utilized to detect ODD in outpatient ophthalmology and neurology clinics.

Findings:

  • The portable ultrasound system successfully identified optic disc drusen.
  • The device demonstrated effectiveness in detecting ODD in real-world clinical settings.

Implications:

  • Portable ultrasound offers advantages like reduced visit times and office space requirements.
  • The technology is more affordable than traditional ultrasound machines.
  • This innovation has the potential to augment ophthalmological examinations and enhance patient care.