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Related Experiment Video

Updated: May 24, 2026

Ultrasound Cyclo Plasty in Eyes with Glaucoma
05:05

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Published on: January 26, 2018

Routine preoperative medical testing for cataract surgery.

Lisa Keay1, Kristina Lindsley, James Tielsch

  • 1Injury Division, The George Institute for Global Health, The University of Sydney, Sydney, Australia. lkeay@georgeinstitute.org.au

The Cochrane Database of Systematic Reviews
|March 16, 2012
PubMed
Summary

Routine preoperative medical testing does not improve cataract surgery safety and increases costs. Self-administered health questionnaires may offer a more cost-effective alternative for identifying at-risk patients.

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Modeling Cataract Surgery in Mice
05:19

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Published on: December 1, 2023

Area of Science:

  • Ophthalmology
  • Evidence-Based Medicine
  • Health Economics

Background:

  • Cataract surgery is a common procedure with increasing rates globally.
  • Optimizing safety and cost-effectiveness is crucial due to high surgical volumes and patient comorbidities.
  • Routine preoperative medical testing is widely practiced but its benefit is debated.

Purpose of the Study:

  • To evaluate the evidence for reduced adverse events with routine preoperative medical testing for cataract surgery.
  • To estimate the cost associated with routine preoperative medical testing.

Main Methods:

  • Systematic review of randomized clinical trials comparing routine preoperative testing to no or selective testing.
  • Searched multiple databases including CENTRAL, MEDLINE, EMBASE, LILACS, mRCT, ClinicalTrials.gov, and WHO ICTRP.
  • Independent assessment of study characteristics, data extraction, and methodological quality by two reviewers.

Main Results:

  • Three trials involving 21,531 surgeries found no significant reduction in intraoperative or postoperative medical adverse events with routine testing.
  • Routine testing was associated with significantly higher costs (2.55 times greater) compared to no testing.
  • No difference in surgery cancellation rates was observed between groups.

Conclusions:

  • Routine preoperative medical testing does not enhance the safety of cataract surgery.
  • Self-administered health questionnaires are proposed as a cost-effective alternative for risk assessment.
  • Despite rare occurrence, medical adverse events remain a concern for elderly patients with comorbidities.