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Hearing loss and phacoemulsification.

R D Ten Hulzen1, J C Erie, D A Fabry

  • 1Department of Ophthalmology (Ten Hulzen, Erie), Mayo Clinic and Mayo Foundation, Rochester, MN 55905, USA.

Journal of Cataract and Refractive Surgery
|April 20, 2000
PubMed
Summary
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Phacoemulsification systems emit low-frequency console tones that may be audible to ophthalmologists with sensorineural hearing loss. This study analyzed phacoemulsification acoustic spectra and compared them to hearing loss audiograms.

Area of Science:

  • Ophthalmology
  • Audiology
  • Biomedical Engineering

Background:

  • Phacoemulsification is a common surgical technique for cataract removal.
  • Understanding the acoustic properties of surgical equipment is crucial for occupational safety.

Purpose of the Study:

  • To determine the acoustic spectra of current phacoemulsification units.
  • To compare these spectra with audiograms of common sensorineural hearing loss types.

Main Methods:

  • Acoustic spectra of three phacoemulsification systems (Alcon Legacy, Storz Millennium, AMO Diplomax) were recorded.
  • Recordings were made in a soundproof room and analyzed using specialized equipment.

Main Results:

  • Handpiece-generated tones (6.0-18.8 kHz) were generally outside the hearing loss range.

Related Experiment Videos

  • Console-generated low-frequency tones (0.4-2.0 kHz) fell within the hearing loss range.

    • Conclusions:

    • Phacoemulsification systems producing low-frequency console tones may be audible to ophthalmologists with hearing loss.
    • This audibility could impact the surgical environment and personnel.