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Related Experiment Videos

Visual experience during phacoemulsification cataract surgery under topical anaesthesia.

D K Newman1

  • 1Department of Ophthalmology, West Norwich Hospital, Bowthorpe Road, Norwich NR2 3TU.

The British Journal of Ophthalmology
|December 28, 1999
PubMed
Summary

Patients undergoing phacoemulsification cataract surgery with topical anesthesia report varied visual experiences, primarily the operating microscope light. This visual awareness does not appear greater than with regional anesthesia, suggesting counseling is beneficial.

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Area of Science:

  • Ophthalmology
  • Anesthesiology
  • Surgical Patient Experience

Background:

  • Visual awareness during cataract surgery impacts patient satisfaction.
  • Topical anesthesia, unlike regional anesthesia, does not affect optic nerve function, potentially increasing visual awareness.

Purpose of the Study:

  • To assess the visual experience of patients undergoing phacoemulsification cataract surgery under topical anesthesia without sedation.
  • To determine if topical anesthesia leads to greater visual awareness compared to regional anesthesia.

Main Methods:

  • 102 patients undergoing phacoemulsification cataract surgery with topical anesthesia were interviewed post-surgery.
  • A standardized questionnaire was used to detail specific visual phenomena experienced during the procedure.

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Main Results:

  • The majority of patients (99%) perceived the operating microscope light; other common sensations included colors (73%) and changes in light brightness (49%).
  • No patient reported an unpleasant visual experience, though two found the microscope light uncomfortably bright.
  • No significant association was found between reported visual phenomena and patient demographics or preoperative factors.

Conclusions:

  • Patients undergoing phacoemulsification cataract surgery with topical anesthesia experience diverse visual sensations.
  • Topical anesthesia does not seem to increase visual awareness compared to regional anesthesia.
  • Informing patients about potential visual experiences during surgery is recommended.